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Author SHA1 Message Date
Adrián Larumbe
894e005a01 drm/panthor: Defer scheduler entitiy destruction to queue release
[ Upstream commit 7d9c3442b0 ]

Commit de85488138 ("drm/panthor: Add the scheduler logical block")
handled destruction of a group's queues' drm scheduler entities early
into the group destruction procedure.

However, that races with the group submit ioctl, because by the time
entities are destroyed (through the group destroy ioctl), the submission
procedure might've already obtained a group handle, and therefore the
ability to push jobs into entities. This is met with a DRM error message
within the drm scheduler core as a situation that should never occur.

Fix by deferring drm scheduler entity destruction to queue release time.

Fixes: de85488138 ("drm/panthor: Add the scheduler logical block")
Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20250919164436.531930-1-adrian.larumbe@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:12 +02:00
Sebastian Andrzej Siewior
a170b9c0dd futex: Prevent use-after-free during requeue-PI
[ Upstream commit b549113738 ]

syzbot managed to trigger the following race:

   T1                               T2

 futex_wait_requeue_pi()
   futex_do_wait()
     schedule()
                               futex_requeue()
                                 futex_proxy_trylock_atomic()
                                   futex_requeue_pi_prepare()
                                   requeue_pi_wake_futex()
                                     futex_requeue_pi_complete()
                                      /* preempt */

         * timeout/ signal wakes T1 *

   futex_requeue_pi_wakeup_sync() // Q_REQUEUE_PI_LOCKED
   futex_hash_put()
  // back to userland, on stack futex_q is garbage

                                      /* back */
                                     wake_up_state(q->task, TASK_NORMAL);

In this scenario futex_wait_requeue_pi() is able to leave without using
futex_q::lock_ptr for synchronization.

This can be prevented by reading futex_q::task before updating the
futex_q::requeue_state. A reference on the task_struct is not needed
because requeue_pi_wake_futex() is invoked with a spinlock_t held which
implies a RCU read section.

Even if T1 terminates immediately after, the task_struct will remain valid
during T2's wake_up_state().  A READ_ONCE on futex_q::task before
futex_requeue_pi_complete() is enough because it ensures that the variable
is read before the state is updated.

Read futex_q::task before updating the requeue state, use it for the
following wakeup.

Fixes: 07d91ef510 ("futex: Prevent requeue_pi() lock nesting issue on RT")
Reported-by: syzbot+034246a838a10d181e78@syzkaller.appspotmail.com
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Closes: https://lore.kernel.org/all/68b75989.050a0220.3db4df.01dd.GAE@google.com/
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:11 +02:00
Zabelin Nikita
f800f7054d drm/gma500: Fix null dereference in hdmi teardown
[ Upstream commit 352e66900c ]

pci_set_drvdata sets the value of pdev->driver_data to NULL,
after which the driver_data obtained from the same dev is
dereferenced in oaktrail_hdmi_i2c_exit, and the i2c_dev is
extracted from it. To prevent this, swap these calls.

Found by Linux Verification Center (linuxtesting.org) with Svacer.

Fixes: 1b082ccf59 ("gma500: Add Oaktrail support")
Signed-off-by: Zabelin Nikita <n.zabelin@mt-integration.ru>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://lore.kernel.org/r/20250918150703.2562604-1-n.zabelin@mt-integration.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:11 +02:00
Hugh Dickins
895fab2a42 mm: folio_may_be_lru_cached() unless folio_test_large()
[ Upstream commit 2da6de30e6 ]

mm/swap.c and mm/mlock.c agree to drain any per-CPU batch as soon as a
large folio is added: so collect_longterm_unpinnable_folios() just wastes
effort when calling lru_add_drain[_all]() on a large folio.

But although there is good reason not to batch up PMD-sized folios, we
might well benefit from batching a small number of low-order mTHPs (though
unclear how that "small number" limitation will be implemented).

So ask if folio_may_be_lru_cached() rather than !folio_test_large(), to
insulate those particular checks from future change.  Name preferred to
"folio_is_batchable" because large folios can well be put on a batch: it's
just the per-CPU LRU caches, drained much later, which need care.

Marked for stable, to counter the increase in lru_add_drain_all()s from
"mm/gup: check ref_count instead of lru before migration".

Link: https://lkml.kernel.org/r/57d2eaf8-3607-f318-e0c5-be02dce61ad0@google.com
Fixes: 9a4e9f3b2d ("mm: update get_user_pages_longterm to migrate pages allocated from CMA region")
Signed-off-by: Hugh Dickins <hughd@google.com>
Suggested-by: David Hildenbrand <david@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@kernel.org>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Chris Li <chrisl@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Keir Fraser <keirf@google.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Li Zhe <lizhe.67@bytedance.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shivank Garg <shivankg@amd.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Xu <weixugc@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: yangge <yangge1116@126.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ Clean cherry-pick now into this tree ]
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:11 +02:00
Hugh Dickins
9422cfa89e mm: revert "mm/gup: clear the LRU flag of a page before adding to LRU batch"
[ Upstream commit afb99e9f50 ]

This reverts commit 33dfe9204f: now that
collect_longterm_unpinnable_folios() is checking ref_count instead of lru,
and mlock/munlock do not participate in the revised LRU flag clearing,
those changes are misleading, and enlarge the window during which
mlock/munlock may miss an mlock_count update.

It is possible (I'd hesitate to claim probable) that the greater
likelihood of missed mlock_count updates would explain the "Realtime
threads delayed due to kcompactd0" observed on 6.12 in the Link below.  If
that is the case, this reversion will help; but a complete solution needs
also a further patch, beyond the scope of this series.

Included some 80-column cleanup around folio_batch_add_and_move().

The role of folio_test_clear_lru() (before taking per-memcg lru_lock) is
questionable since 6.13 removed mem_cgroup_move_account() etc; but perhaps
there are still some races which need it - not examined here.

Link: https://lore.kernel.org/linux-mm/DU0PR01MB10385345F7153F334100981888259A@DU0PR01MB10385.eurprd01.prod.exchangelabs.com/
Link: https://lkml.kernel.org/r/05905d7b-ed14-68b1-79d8-bdec30367eba@google.com
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@kernel.org>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Chris Li <chrisl@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Keir Fraser <keirf@google.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Li Zhe <lizhe.67@bytedance.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shivank Garg <shivankg@amd.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Xu <weixugc@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: yangge <yangge1116@126.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ Resolved conflicts in applying the revert to this tree ]
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:11 +02:00
Hugh Dickins
0db0d69bc9 mm/gup: local lru_add_drain() to avoid lru_add_drain_all()
[ Upstream commit a09a8a1fbb ]

In many cases, if collect_longterm_unpinnable_folios() does need to drain
the LRU cache to release a reference, the cache in question is on this
same CPU, and much more efficiently drained by a preliminary local
lru_add_drain(), than the later cross-CPU lru_add_drain_all().

Marked for stable, to counter the increase in lru_add_drain_all()s from
"mm/gup: check ref_count instead of lru before migration".  Note for clean
backports: can take 6.16 commit a03db236ae ("gup: optimize longterm
pin_user_pages() for large folio") first.

Link: https://lkml.kernel.org/r/66f2751f-283e-816d-9530-765db7edc465@google.com
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@kernel.org>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Chris Li <chrisl@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Keir Fraser <keirf@google.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Li Zhe <lizhe.67@bytedance.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shivank Garg <shivankg@amd.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Xu <weixugc@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: yangge <yangge1116@126.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ Clean cherry-pick now into this tree ]
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:11 +02:00
Dan Carpenter
c41b2941a0 octeontx2-pf: Fix potential use after free in otx2_tc_add_flow()
[ Upstream commit d9c70e93ec ]

This code calls kfree_rcu(new_node, rcu) and then dereferences "new_node"
and then dereferences it on the next line.  Two lines later, we take
a mutex so I don't think this is an RCU safe region.  Re-order it to do
the dereferences before queuing up the free.

Fixes: 68fbff68db ("octeontx2-pf: Add police action for TC flower")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/aNKCL1jKwK8GRJHh@stanley.mountain
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:11 +02:00
Vladimir Oltean
ca74b67b47 net: dsa: lantiq_gswip: suppress -EINVAL errors for bridge FDB entries added to the CPU port
[ Upstream commit 987afe1479 ]

The blamed commit and others in that patch set started the trend
of reusing existing DSA driver API for a new purpose: calling
ds->ops->port_fdb_add() on the CPU port.

The lantiq_gswip driver was not prepared to handle that, as can be seen
from the many errors that Daniel presents in the logs:

[  174.050000] gswip 1e108000.switch: port 2 failed to add fa:aa:72:f4:8b:1e vid 1 to fdb: -22
[  174.060000] gswip 1e108000.switch lan2: entered promiscuous mode
[  174.070000] gswip 1e108000.switch: port 2 failed to add 00:01:02:03:04:02 vid 0 to fdb: -22
[  174.090000] gswip 1e108000.switch: port 2 failed to add 00:01:02:03:04:02 vid 1 to fdb: -22
[  174.090000] gswip 1e108000.switch: port 2 failed to delete fa:aa:72:f4:8b:1e vid 1 from fdb: -2

The errors are because gswip_port_fdb() wants to get a handle to the
bridge that originated these FDB events, to associate it with a FID.
Absolutely honourable purpose, however this only works for user ports.

To get the bridge that generated an FDB entry for the CPU port, one
would need to look at the db.bridge.dev argument. But this was
introduced in commit c26933639b ("net: dsa: request drivers to perform
FDB isolation"), first appeared in v5.18, and when the blamed commit was
introduced in v5.14, no such API existed.

So the core DSA feature was introduced way too soon for lantiq_gswip.
Not acting on these host FDB entries and suppressing any errors has no
other negative effect, and practically returns us to not supporting the
host filtering feature at all - peacefully, this time.

Fixes: 10fae4ac89 ("net: dsa: include bridge addresses which are local in the host fdb list")
Reported-by: Daniel Golle <daniel@makrotopia.org>
Closes: https://lore.kernel.org/netdev/aJfNMLNoi1VOsPrN@pidgin.makrotopia.org/
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20250918072142.894692-3-vladimir.oltean@nxp.com
Tested-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:11 +02:00
Vladimir Oltean
7d7e29b959 net: dsa: lantiq_gswip: move gswip_add_single_port_br() call to port_setup()
[ Upstream commit c0054b25e2 ]

A port added to a "single port bridge" operates as standalone, and this
is mutually exclusive to being part of a Linux bridge. In fact,
gswip_port_bridge_join() calls gswip_add_single_port_br() with
add=false, i.e. removes the port from the "single port bridge" to enable
autonomous forwarding.

The blamed commit seems to have incorrectly thought that ds->ops->port_enable()
is called one time per port, during the setup phase of the switch.

However, it is actually called during the ndo_open() implementation of
DSA user ports, which is to say that this sequence of events:

1. ip link set swp0 down
2. ip link add br0 type bridge
3. ip link set swp0 master br0
4. ip link set swp0 up

would cause swp0 to join back the "single port bridge" which step 3 had
just removed it from.

The correct DSA hook for one-time actions per port at switch init time
is ds->ops->port_setup(). This is what seems to match the coder's
intention; also see the comment at the beginning of the file:

 * At the initialization the driver allocates one bridge table entry for
   ~~~~~~~~~~~~~~~~~~~~~
 * each switch port which is used when the port is used without an
 * explicit bridge.

Fixes: 8206e0ce96 ("net: dsa: lantiq: Add VLAN unaware bridge offloading")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20250918072142.894692-2-vladimir.oltean@nxp.com
Tested-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:11 +02:00
Ido Schimmel
fbf6548f0f selftests: fib_nexthops: Fix creation of non-FDB nexthops
[ Upstream commit c29913109c ]

The test creates non-FDB nexthops without a nexthop device which leads
to the expected failure, but for the wrong reason:

 # ./fib_nexthops.sh -t "ipv6_fdb_grp_fcnal ipv4_fdb_grp_fcnal" -v

 IPv6 fdb groups functional
 --------------------------
 [...]
 COMMAND: ip -netns me-nRsN3E nexthop add id 63 via 2001:db8:91::4
 Error: Device attribute required for non-blackhole and non-fdb nexthops.
 COMMAND: ip -netns me-nRsN3E nexthop add id 64 via 2001:db8:91::5
 Error: Device attribute required for non-blackhole and non-fdb nexthops.
 COMMAND: ip -netns me-nRsN3E nexthop add id 103 group 63/64 fdb
 Error: Invalid nexthop id.
 TEST: Fdb Nexthop group with non-fdb nexthops                       [ OK ]
 [...]

 IPv4 fdb groups functional
 --------------------------
 [...]
 COMMAND: ip -netns me-nRsN3E nexthop add id 14 via 172.16.1.2
 Error: Device attribute required for non-blackhole and non-fdb nexthops.
 COMMAND: ip -netns me-nRsN3E nexthop add id 15 via 172.16.1.3
 Error: Device attribute required for non-blackhole and non-fdb nexthops.
 COMMAND: ip -netns me-nRsN3E nexthop add id 103 group 14/15 fdb
 Error: Invalid nexthop id.
 TEST: Fdb Nexthop group with non-fdb nexthops                       [ OK ]

 COMMAND: ip -netns me-nRsN3E nexthop add id 16 via 172.16.1.2 fdb
 COMMAND: ip -netns me-nRsN3E nexthop add id 17 via 172.16.1.3 fdb
 COMMAND: ip -netns me-nRsN3E nexthop add id 104 group 14/15
 Error: Invalid nexthop id.
 TEST: Non-Fdb Nexthop group with fdb nexthops                       [ OK ]
 [...]
 COMMAND: ip -netns me-0dlhyd ro add 172.16.0.0/22 nhid 15
 Error: Nexthop id does not exist.
 TEST: Route add with fdb nexthop                                    [ OK ]

In addition, as can be seen in the above output, a couple of IPv4 test
cases used the non-FDB nexthops (14 and 15) when they intended to use
the FDB nexthops (16 and 17). These test cases only passed because
failure was expected, but they failed for the wrong reason.

Fix the test to create the non-FDB nexthops with a nexthop device and
adjust the IPv4 test cases to use the FDB nexthops instead of the
non-FDB nexthops.

Output after the fix:

 # ./fib_nexthops.sh -t "ipv6_fdb_grp_fcnal ipv4_fdb_grp_fcnal" -v

 IPv6 fdb groups functional
 --------------------------
 [...]
 COMMAND: ip -netns me-lNzfHP nexthop add id 63 via 2001:db8:91::4 dev veth1
 COMMAND: ip -netns me-lNzfHP nexthop add id 64 via 2001:db8:91::5 dev veth1
 COMMAND: ip -netns me-lNzfHP nexthop add id 103 group 63/64 fdb
 Error: FDB nexthop group can only have fdb nexthops.
 TEST: Fdb Nexthop group with non-fdb nexthops                       [ OK ]
 [...]

 IPv4 fdb groups functional
 --------------------------
 [...]
 COMMAND: ip -netns me-lNzfHP nexthop add id 14 via 172.16.1.2 dev veth1
 COMMAND: ip -netns me-lNzfHP nexthop add id 15 via 172.16.1.3 dev veth1
 COMMAND: ip -netns me-lNzfHP nexthop add id 103 group 14/15 fdb
 Error: FDB nexthop group can only have fdb nexthops.
 TEST: Fdb Nexthop group with non-fdb nexthops                       [ OK ]

 COMMAND: ip -netns me-lNzfHP nexthop add id 16 via 172.16.1.2 fdb
 COMMAND: ip -netns me-lNzfHP nexthop add id 17 via 172.16.1.3 fdb
 COMMAND: ip -netns me-lNzfHP nexthop add id 104 group 16/17
 Error: Non FDB nexthop group cannot have fdb nexthops.
 TEST: Non-Fdb Nexthop group with fdb nexthops                       [ OK ]
 [...]
 COMMAND: ip -netns me-lNzfHP ro add 172.16.0.0/22 nhid 16
 Error: Route cannot point to a fdb nexthop.
 TEST: Route add with fdb nexthop                                    [ OK ]
 [...]
 Tests passed:  30
 Tests failed:   0
 Tests skipped:  0

Fixes: 0534c5489c ("selftests: net: add fdb nexthop tests")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250921150824.149157-3-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:10 +02:00
Ido Schimmel
f0e49fd13a nexthop: Forbid FDB status change while nexthop is in a group
[ Upstream commit 390b3a300d ]

The kernel forbids the creation of non-FDB nexthop groups with FDB
nexthops:

 # ip nexthop add id 1 via 192.0.2.1 fdb
 # ip nexthop add id 2 group 1
 Error: Non FDB nexthop group cannot have fdb nexthops.

And vice versa:

 # ip nexthop add id 3 via 192.0.2.2 dev dummy1
 # ip nexthop add id 4 group 3 fdb
 Error: FDB nexthop group can only have fdb nexthops.

However, as long as no routes are pointing to a non-FDB nexthop group,
the kernel allows changing the type of a nexthop from FDB to non-FDB and
vice versa:

 # ip nexthop add id 5 via 192.0.2.2 dev dummy1
 # ip nexthop add id 6 group 5
 # ip nexthop replace id 5 via 192.0.2.2 fdb
 # echo $?
 0

This configuration is invalid and can result in a NPD [1] since FDB
nexthops are not associated with a nexthop device:

 # ip route add 198.51.100.1/32 nhid 6
 # ping 198.51.100.1

Fix by preventing nexthop FDB status change while the nexthop is in a
group:

 # ip nexthop add id 7 via 192.0.2.2 dev dummy1
 # ip nexthop add id 8 group 7
 # ip nexthop replace id 7 via 192.0.2.2 fdb
 Error: Cannot change nexthop FDB status while in a group.

[1]
BUG: kernel NULL pointer dereference, address: 00000000000003c0
[...]
Oops: Oops: 0000 [#1] SMP
CPU: 6 UID: 0 PID: 367 Comm: ping Not tainted 6.17.0-rc6-virtme-gb65678cacc03 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-4.fc41 04/01/2014
RIP: 0010:fib_lookup_good_nhc+0x1e/0x80
[...]
Call Trace:
 <TASK>
 fib_table_lookup+0x541/0x650
 ip_route_output_key_hash_rcu+0x2ea/0x970
 ip_route_output_key_hash+0x55/0x80
 __ip4_datagram_connect+0x250/0x330
 udp_connect+0x2b/0x60
 __sys_connect+0x9c/0xd0
 __x64_sys_connect+0x18/0x20
 do_syscall_64+0xa4/0x2a0
 entry_SYSCALL_64_after_hwframe+0x4b/0x53

Fixes: 38428d6871 ("nexthop: support for fdb ecmp nexthops")
Reported-by: syzbot+6596516dd2b635ba2350@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/68c9a4d2.050a0220.3c6139.0e63.GAE@google.com/
Tested-by: syzbot+6596516dd2b635ba2350@syzkaller.appspotmail.com
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250921150824.149157-2-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:10 +02:00
Jason Baron
3bc813c5e6 net: allow alloc_skb_with_frags() to use MAX_SKB_FRAGS
[ Upstream commit ca9f9cdc4d ]

Currently, alloc_skb_with_frags() will only fill (MAX_SKB_FRAGS - 1)
slots. I think it should use all MAX_SKB_FRAGS slots, as callers of
alloc_skb_with_frags() will size their allocation of frags based
on MAX_SKB_FRAGS.

This issue was discovered via a test patch that sets 'order' to 0
in alloc_skb_with_frags(), which effectively tests/simulates high
fragmentation. In this case sendmsg() on unix sockets will fail every
time for large allocations. If the PAGE_SIZE is 4K, then data_len will
request 68K or 17 pages, but alloc_skb_with_frags() can only allocate
64K in this case or 16 pages.

Fixes: 09c2c90705 ("net: allow alloc_skb_with_frags() to allocate bigger packets")
Signed-off-by: Jason Baron <jbaron@akamai.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250922191957.2855612-1-jbaron@akamai.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:10 +02:00
Alok Tiwari
90cfbb4e73 bnxt_en: correct offset handling for IPv6 destination address
[ Upstream commit 3d3aa9472c ]

In bnxt_tc_parse_pedit(), the code incorrectly writes IPv6
destination values to the source address field (saddr) when
processing pedit offsets within the destination address range.

This patch corrects the assignment to use daddr instead of saddr,
ensuring that pedit operations on IPv6 destination addresses are
applied correctly.

Fixes: 9b9eb518e3 ("bnxt_en: Add support for NAT(L3/L4 rewrite)")
Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Link: https://patch.msgid.link/20250920121157.351921-1-alok.a.tiwari@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:10 +02:00
Sebastian Andrzej Siewior
d2be773a92 vhost: Take a reference on the task in struct vhost_task.
[ Upstream commit afe16653e0 ]

vhost_task_create() creates a task and keeps a reference to its
task_struct. That task may exit early via a signal and its task_struct
will be released.
A pending vhost_task_wake() will then attempt to wake the task and
access a task_struct which is no longer there.

Acquire a reference on the task_struct while creating the thread and
release the reference while the struct vhost_task itself is removed.
If the task exits early due to a signal, then the vhost_task_wake() will
still access a valid task_struct. The wake is safe and will be skipped
in this case.

Fixes: f9010dbdce ("fork, vhost: Use CLONE_THREAD to fix freezer/ps regression")
Reported-by: Sean Christopherson <seanjc@google.com>
Closes: https://lore.kernel.org/all/aKkLEtoDXKxAAWju@google.com/
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Message-Id: <20250918181144.Ygo8BZ-R@linutronix.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:10 +02:00
Luiz Augusto von Dentz
484c7d571a Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync
[ Upstream commit 9e622804d5 ]

This fixes the following UFA in hci_acl_create_conn_sync where a
connection still pending is command submission (conn->state == BT_OPEN)
maybe freed, also since this also can happen with the likes of
hci_le_create_conn_sync fix it as well:

BUG: KASAN: slab-use-after-free in hci_acl_create_conn_sync+0x5ef/0x790 net/bluetooth/hci_sync.c:6861
Write of size 2 at addr ffff88805ffcc038 by task kworker/u11:2/9541

CPU: 1 UID: 0 PID: 9541 Comm: kworker/u11:2 Not tainted 6.16.0-rc7 #3 PREEMPT(full)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
Workqueue: hci3 hci_cmd_sync_work
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xca/0x230 mm/kasan/report.c:480
 kasan_report+0x118/0x150 mm/kasan/report.c:593
 hci_acl_create_conn_sync+0x5ef/0x790 net/bluetooth/hci_sync.c:6861
 hci_cmd_sync_work+0x210/0x3a0 net/bluetooth/hci_sync.c:332
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 home/kwqcheii/source/fuzzing/kernel/kasan/linux-6.16-rc7/arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 123736:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __kmalloc_cache_noprof+0x230/0x3d0 mm/slub.c:4359
 kmalloc_noprof include/linux/slab.h:905 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 __hci_conn_add+0x233/0x1b30 net/bluetooth/hci_conn.c:939
 hci_conn_add_unset net/bluetooth/hci_conn.c:1051 [inline]
 hci_connect_acl+0x16c/0x4e0 net/bluetooth/hci_conn.c:1634
 pair_device+0x418/0xa70 net/bluetooth/mgmt.c:3556
 hci_mgmt_cmd+0x9c9/0xef0 net/bluetooth/hci_sock.c:1719
 hci_sock_sendmsg+0x6ca/0xef0 net/bluetooth/hci_sock.c:1839
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg+0x219/0x270 net/socket.c:727
 sock_write_iter+0x258/0x330 net/socket.c:1131
 new_sync_write fs/read_write.c:593 [inline]
 vfs_write+0x54b/0xa90 fs/read_write.c:686
 ksys_write+0x145/0x250 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 103680:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576
 poison_slab_object mm/kasan/common.c:247 [inline]
 __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264
 kasan_slab_free include/linux/kasan.h:233 [inline]
 slab_free_hook mm/slub.c:2381 [inline]
 slab_free mm/slub.c:4643 [inline]
 kfree+0x18e/0x440 mm/slub.c:4842
 device_release+0x9c/0x1c0
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x22b/0x480 lib/kobject.c:737
 hci_conn_cleanup net/bluetooth/hci_conn.c:175 [inline]
 hci_conn_del+0x8ff/0xcb0 net/bluetooth/hci_conn.c:1173
 hci_conn_complete_evt+0x3c7/0x1040 net/bluetooth/hci_event.c:3199
 hci_event_func net/bluetooth/hci_event.c:7477 [inline]
 hci_event_packet+0x7e0/0x1200 net/bluetooth/hci_event.c:7531
 hci_rx_work+0x46a/0xe80 net/bluetooth/hci_core.c:4070
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 home/kwqcheii/source/fuzzing/kernel/kasan/linux-6.16-rc7/arch/x86/entry/entry_64.S:245

Last potentially related work creation:
 kasan_save_stack+0x3e/0x60 mm/kasan/common.c:47
 kasan_record_aux_stack+0xbd/0xd0 mm/kasan/generic.c:548
 insert_work+0x3d/0x330 kernel/workqueue.c:2183
 __queue_work+0xbd9/0xfe0 kernel/workqueue.c:2345
 queue_delayed_work_on+0x18b/0x280 kernel/workqueue.c:2561
 pairing_complete+0x1e7/0x2b0 net/bluetooth/mgmt.c:3451
 pairing_complete_cb+0x1ac/0x230 net/bluetooth/mgmt.c:3487
 hci_connect_cfm include/net/bluetooth/hci_core.h:2064 [inline]
 hci_conn_failed+0x24d/0x310 net/bluetooth/hci_conn.c:1275
 hci_conn_complete_evt+0x3c7/0x1040 net/bluetooth/hci_event.c:3199
 hci_event_func net/bluetooth/hci_event.c:7477 [inline]
 hci_event_packet+0x7e0/0x1200 net/bluetooth/hci_event.c:7531
 hci_rx_work+0x46a/0xe80 net/bluetooth/hci_core.c:4070
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 home/kwqcheii/source/fuzzing/kernel/kasan/linux-6.16-rc7/arch/x86/entry/entry_64.S:245

Fixes: aef2aa4fa9 ("Bluetooth: hci_event: Fix creating hci_conn object on error status")
Reported-by: Junvyyang, Tencent Zhuque Lab <zhuque@tencent.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:10 +02:00
Luiz Augusto von Dentz
23c9c485fa Bluetooth: hci_sync: Fix hci_resume_advertising_sync
[ Upstream commit 1488af7b8b ]

hci_resume_advertising_sync is suppose to resume all instance paused by
hci_pause_advertising_sync, this logic is used for procedures are only
allowed when not advertising, but instance 0x00 was not being
re-enabled.

Fixes: ad383c2c65 ("Bluetooth: hci_sync: Enable advertising when LL privacy is enabled")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:10 +02:00
Petr Malat
262f383696 ethernet: rvu-af: Remove slash from the driver name
[ Upstream commit b65678cacc ]

Having a slash in the driver name leads to EIO being returned while
reading /sys/module/rvu_af/drivers content.

Remove DRV_STRING as it's not used anywhere.

Fixes: 91c6945ea1 ("octeontx2-af: cn10k: Add RPM MAC support")
Signed-off-by: Petr Malat <oss@malat.biz>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250918152106.1798299-1-oss@malat.biz
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:10 +02:00
Sidraya Jayagond
14fc4fdae4 net/smc: fix warning in smc_rx_splice() when calling get_page()
[ Upstream commit a35c04de25 ]

smc_lo_register_dmb() allocates DMB buffers with kzalloc(), which are
later passed to get_page() in smc_rx_splice(). Since kmalloc memory is
not page-backed, this triggers WARN_ON_ONCE() in get_page() and prevents
holding a refcount on the buffer. This can lead to use-after-free if
the memory is released before splice_to_pipe() completes.

Use folio_alloc() instead, ensuring DMBs are page-backed and safe for
get_page().

WARNING: CPU: 18 PID: 12152 at ./include/linux/mm.h:1330 smc_rx_splice+0xaf8/0xe20 [smc]
CPU: 18 UID: 0 PID: 12152 Comm: smcapp Kdump: loaded Not tainted 6.17.0-rc3-11705-g9cf4672ecfee #10 NONE
Hardware name: IBM 3931 A01 704 (z/VM 7.4.0)
Krnl PSW : 0704e00180000000 000793161032696c (smc_rx_splice+0xafc/0xe20 [smc])
           R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 RI:0 EA:3
Krnl GPRS: 0000000000000000 001cee80007d3001 00077400000000f8 0000000000000005
           0000000000000001 001cee80007d3006 0007740000001000 001c000000000000
           000000009b0c99e0 0000000000001000 001c0000000000f8 001c000000000000
           000003ffcc6f7c88 0007740003e98000 0007931600000005 000792969b2ff7b8
Krnl Code: 0007931610326960: af000000		mc	0,0
           0007931610326964: a7f4ff43		brc	15,00079316103267ea
          #0007931610326968: af000000		mc	0,0
          >000793161032696c: a7f4ff3f		brc	15,00079316103267ea
           0007931610326970: e320f1000004	lg	%r2,256(%r15)
           0007931610326976: c0e53fd1b5f5	brasl	%r14,000793168fd5d560
           000793161032697c: a7f4fbb5		brc	15,00079316103260e6
           0007931610326980: b904002b		lgr	%r2,%r11
Call Trace:
 smc_rx_splice+0xafc/0xe20 [smc]
 smc_rx_splice+0x756/0xe20 [smc])
 smc_rx_recvmsg+0xa74/0xe00 [smc]
 smc_splice_read+0x1ce/0x3b0 [smc]
 sock_splice_read+0xa2/0xf0
 do_splice_read+0x198/0x240
 splice_file_to_pipe+0x7e/0x110
 do_splice+0x59e/0xde0
 __do_splice+0x11a/0x2d0
 __s390x_sys_splice+0x140/0x1f0
 __do_syscall+0x122/0x280
 system_call+0x6e/0x90
Last Breaking-Event-Address:
smc_rx_splice+0x960/0xe20 [smc]
---[ end trace 0000000000000000 ]---

Fixes: f7a22071db ("net/smc: implement DMB-related operations of loopback-ism")
Reviewed-by: Mahanta Jambigi <mjambigi@linux.ibm.com>
Signed-off-by: Sidraya Jayagond <sidraya@linux.ibm.com>
Link: https://patch.msgid.link/20250917184220.801066-1-sidraya@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:10 +02:00
Wang Liang
953200d56f net: tun: Update napi->skb after XDP process
[ Upstream commit 1091860a16 ]

The syzbot report a UAF issue:

  BUG: KASAN: slab-use-after-free in skb_reset_mac_header include/linux/skbuff.h:3150 [inline]
  BUG: KASAN: slab-use-after-free in napi_frags_skb net/core/gro.c:723 [inline]
  BUG: KASAN: slab-use-after-free in napi_gro_frags+0x6e/0x1030 net/core/gro.c:758
  Read of size 8 at addr ffff88802ef22c18 by task syz.0.17/6079
  CPU: 0 UID: 0 PID: 6079 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full)
  Call Trace:
   <TASK>
   dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
   print_address_description mm/kasan/report.c:378 [inline]
   print_report+0xca/0x240 mm/kasan/report.c:482
   kasan_report+0x118/0x150 mm/kasan/report.c:595
   skb_reset_mac_header include/linux/skbuff.h:3150 [inline]
   napi_frags_skb net/core/gro.c:723 [inline]
   napi_gro_frags+0x6e/0x1030 net/core/gro.c:758
   tun_get_user+0x28cb/0x3e20 drivers/net/tun.c:1920
   tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1996
   new_sync_write fs/read_write.c:593 [inline]
   vfs_write+0x5c9/0xb30 fs/read_write.c:686
   ksys_write+0x145/0x250 fs/read_write.c:738
   do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
   do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
   entry_SYSCALL_64_after_hwframe+0x77/0x7f
   </TASK>

  Allocated by task 6079:
   kasan_save_stack mm/kasan/common.c:47 [inline]
   kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
   unpoison_slab_object mm/kasan/common.c:330 [inline]
   __kasan_mempool_unpoison_object+0xa0/0x170 mm/kasan/common.c:558
   kasan_mempool_unpoison_object include/linux/kasan.h:388 [inline]
   napi_skb_cache_get+0x37b/0x6d0 net/core/skbuff.c:295
   __alloc_skb+0x11e/0x2d0 net/core/skbuff.c:657
   napi_alloc_skb+0x84/0x7d0 net/core/skbuff.c:811
   napi_get_frags+0x69/0x140 net/core/gro.c:673
   tun_napi_alloc_frags drivers/net/tun.c:1404 [inline]
   tun_get_user+0x77c/0x3e20 drivers/net/tun.c:1784
   tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1996
   new_sync_write fs/read_write.c:593 [inline]
   vfs_write+0x5c9/0xb30 fs/read_write.c:686
   ksys_write+0x145/0x250 fs/read_write.c:738
   do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
   do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
   entry_SYSCALL_64_after_hwframe+0x77/0x7f

  Freed by task 6079:
   kasan_save_stack mm/kasan/common.c:47 [inline]
   kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
   kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576
   poison_slab_object mm/kasan/common.c:243 [inline]
   __kasan_slab_free+0x5b/0x80 mm/kasan/common.c:275
   kasan_slab_free include/linux/kasan.h:233 [inline]
   slab_free_hook mm/slub.c:2422 [inline]
   slab_free mm/slub.c:4695 [inline]
   kmem_cache_free+0x18f/0x400 mm/slub.c:4797
   skb_pp_cow_data+0xdd8/0x13e0 net/core/skbuff.c:969
   netif_skb_check_for_xdp net/core/dev.c:5390 [inline]
   netif_receive_generic_xdp net/core/dev.c:5431 [inline]
   do_xdp_generic+0x699/0x11a0 net/core/dev.c:5499
   tun_get_user+0x2523/0x3e20 drivers/net/tun.c:1872
   tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:1996
   new_sync_write fs/read_write.c:593 [inline]
   vfs_write+0x5c9/0xb30 fs/read_write.c:686
   ksys_write+0x145/0x250 fs/read_write.c:738
   do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
   do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
   entry_SYSCALL_64_after_hwframe+0x77/0x7f

After commit e6d5dbdd20 ("xdp: add multi-buff support for xdp running in
generic mode"), the original skb may be freed in skb_pp_cow_data() when
XDP program was attached, which was allocated in tun_napi_alloc_frags().
However, the napi->skb still point to the original skb, update it after
XDP process.

Reported-by: syzbot+64e24275ad95a915a313@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=64e24275ad95a915a313
Fixes: e6d5dbdd20 ("xdp: add multi-buff support for xdp running in generic mode")
Signed-off-by: Wang Liang <wangliang74@huawei.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250917113919.3991267-1-wangliang74@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:09 +02:00
Stéphane Grosjean
eb79ed9706 can: peak_usb: fix shift-out-of-bounds issue
[ Upstream commit c443be70aa ]

Explicitly uses a 64-bit constant when the number of bits used for its
shifting is 32 (which is the case for PC CAN FD interfaces supported by
this driver).

Signed-off-by: Stéphane Grosjean <stephane.grosjean@hms-networks.com>
Link: https://patch.msgid.link/20250918132413.30071-1-stephane.grosjean@free.fr
Reported-by: Marc Kleine-Budde <mkl@pengutronix.de>
Closes: https://lore.kernel.org/20250917-aboriginal-refined-honeybee-82b1aa-mkl@pengutronix.de
Fixes: bb4785551f ("can: usb: PEAK-System Technik USB adapters driver core")
[mkl: update subject, apply manually]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:09 +02:00
Vincent Mailhol
6b9fb82df8 can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow
[ Upstream commit 17c8d79452 ]

Sending an PF_PACKET allows to bypass the CAN framework logic and to
directly reach the xmit() function of a CAN driver. The only check
which is performed by the PF_PACKET framework is to make sure that
skb->len fits the interface's MTU.

Unfortunately, because the mcba_usb driver does not populate its
net_device_ops->ndo_change_mtu(), it is possible for an attacker to
configure an invalid MTU by doing, for example:

  $ ip link set can0 mtu 9999

After doing so, the attacker could open a PF_PACKET socket using the
ETH_P_CANXL protocol:

	socket(PF_PACKET, SOCK_RAW, htons(ETH_P_CANXL))

to inject a malicious CAN XL frames. For example:

	struct canxl_frame frame = {
		.flags = 0xff,
		.len = 2048,
	};

The CAN drivers' xmit() function are calling can_dev_dropped_skb() to
check that the skb is valid, unfortunately under above conditions, the
malicious packet is able to go through can_dev_dropped_skb() checks:

  1. the skb->protocol is set to ETH_P_CANXL which is valid (the
     function does not check the actual device capabilities).

  2. the length is a valid CAN XL length.

And so, mcba_usb_start_xmit() receives a CAN XL frame which it is not
able to correctly handle and will thus misinterpret it as a CAN frame.

This can result in a buffer overflow. The driver will consume cf->len
as-is with no further checks on these lines:

	usb_msg.dlc = cf->len;

	memcpy(usb_msg.data, cf->data, usb_msg.dlc);

Here, cf->len corresponds to the flags field of the CAN XL frame. In
our previous example, we set canxl_frame->flags to 0xff. Because the
maximum expected length is 8, a buffer overflow of 247 bytes occurs!

Populate net_device_ops->ndo_change_mtu() to ensure that the
interface's MTU can not be set to anything bigger than CAN_MTU. By
fixing the root cause, this prevents the buffer overflow.

Fixes: 51f3baad7d ("can: mcba_usb: Add support for Microchip CAN BUS Analyzer")
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Link: https://patch.msgid.link/20250918-can-fix-mtu-v1-4-0d1cada9393b@kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:09 +02:00
Vincent Mailhol
de77841652 can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow
[ Upstream commit 61da0bd410 ]

Sending an PF_PACKET allows to bypass the CAN framework logic and to
directly reach the xmit() function of a CAN driver. The only check
which is performed by the PF_PACKET framework is to make sure that
skb->len fits the interface's MTU.

Unfortunately, because the sun4i_can driver does not populate its
net_device_ops->ndo_change_mtu(), it is possible for an attacker to
configure an invalid MTU by doing, for example:

  $ ip link set can0 mtu 9999

After doing so, the attacker could open a PF_PACKET socket using the
ETH_P_CANXL protocol:

	socket(PF_PACKET, SOCK_RAW, htons(ETH_P_CANXL))

to inject a malicious CAN XL frames. For example:

	struct canxl_frame frame = {
		.flags = 0xff,
		.len = 2048,
	};

The CAN drivers' xmit() function are calling can_dev_dropped_skb() to
check that the skb is valid, unfortunately under above conditions, the
malicious packet is able to go through can_dev_dropped_skb() checks:

  1. the skb->protocol is set to ETH_P_CANXL which is valid (the
     function does not check the actual device capabilities).

  2. the length is a valid CAN XL length.

And so, sun4ican_start_xmit() receives a CAN XL frame which it is not
able to correctly handle and will thus misinterpret it as a CAN frame.

This can result in a buffer overflow. The driver will consume cf->len
as-is with no further checks on this line:

	dlc = cf->len;

Here, cf->len corresponds to the flags field of the CAN XL frame. In
our previous example, we set canxl_frame->flags to 0xff. Because the
maximum expected length is 8, a buffer overflow of 247 bytes occurs a
couple line below when doing:

	for (i = 0; i < dlc; i++)
		writel(cf->data[i], priv->base + (dreg + i * 4));

Populate net_device_ops->ndo_change_mtu() to ensure that the
interface's MTU can not be set to anything bigger than CAN_MTU. By
fixing the root cause, this prevents the buffer overflow.

Fixes: 0738eff14d ("can: Allwinner A10/A20 CAN Controller support - Kernel module")
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Link: https://patch.msgid.link/20250918-can-fix-mtu-v1-3-0d1cada9393b@kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:09 +02:00
Vincent Mailhol
def814b4ba can: hi311x: populate ndo_change_mtu() to prevent buffer overflow
[ Upstream commit ac1c7656fa ]

Sending an PF_PACKET allows to bypass the CAN framework logic and to
directly reach the xmit() function of a CAN driver. The only check
which is performed by the PF_PACKET framework is to make sure that
skb->len fits the interface's MTU.

Unfortunately, because the sun4i_can driver does not populate its
net_device_ops->ndo_change_mtu(), it is possible for an attacker to
configure an invalid MTU by doing, for example:

  $ ip link set can0 mtu 9999

After doing so, the attacker could open a PF_PACKET socket using the
ETH_P_CANXL protocol:

	socket(PF_PACKET, SOCK_RAW, htons(ETH_P_CANXL))

to inject a malicious CAN XL frames. For example:

	struct canxl_frame frame = {
		.flags = 0xff,
		.len = 2048,
	};

The CAN drivers' xmit() function are calling can_dev_dropped_skb() to
check that the skb is valid, unfortunately under above conditions, the
malicious packet is able to go through can_dev_dropped_skb() checks:

  1. the skb->protocol is set to ETH_P_CANXL which is valid (the
     function does not check the actual device capabilities).

  2. the length is a valid CAN XL length.

And so, hi3110_hard_start_xmit() receives a CAN XL frame which it is
not able to correctly handle and will thus misinterpret it as a CAN
frame. The driver will consume frame->len as-is with no further
checks.

This can result in a buffer overflow later on in hi3110_hw_tx() on
this line:

	memcpy(buf + HI3110_FIFO_EXT_DATA_OFF,
	       frame->data, frame->len);

Here, frame->len corresponds to the flags field of the CAN XL frame.
In our previous example, we set canxl_frame->flags to 0xff. Because
the maximum expected length is 8, a buffer overflow of 247 bytes
occurs!

Populate net_device_ops->ndo_change_mtu() to ensure that the
interface's MTU can not be set to anything bigger than CAN_MTU. By
fixing the root cause, this prevents the buffer overflow.

Fixes: 57e83fb9b7 ("can: hi311x: Add Holt HI-311x CAN driver")
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Link: https://patch.msgid.link/20250918-can-fix-mtu-v1-2-0d1cada9393b@kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:09 +02:00
Vincent Mailhol
b26cccd87d can: etas_es58x: populate ndo_change_mtu() to prevent buffer overflow
[ Upstream commit 38c0abad45 ]

Sending an PF_PACKET allows to bypass the CAN framework logic and to
directly reach the xmit() function of a CAN driver. The only check
which is performed by the PF_PACKET framework is to make sure that
skb->len fits the interface's MTU.

Unfortunately, because the etas_es58x driver does not populate its
net_device_ops->ndo_change_mtu(), it is possible for an attacker to
configure an invalid MTU by doing, for example:

  $ ip link set can0 mtu 9999

After doing so, the attacker could open a PF_PACKET socket using the
ETH_P_CANXL protocol:

	socket(PF_PACKET, SOCK_RAW, htons(ETH_P_CANXL));

to inject a malicious CAN XL frames. For example:

	struct canxl_frame frame = {
		.flags = 0xff,
		.len = 2048,
	};

The CAN drivers' xmit() function are calling can_dev_dropped_skb() to
check that the skb is valid, unfortunately under above conditions, the
malicious packet is able to go through can_dev_dropped_skb() checks:

  1. the skb->protocol is set to ETH_P_CANXL which is valid (the
     function does not check the actual device capabilities).

  2. the length is a valid CAN XL length.

And so, es58x_start_xmit() receives a CAN XL frame which it is not
able to correctly handle and will thus misinterpret it as a CAN(FD)
frame.

This can result in a buffer overflow. For example, using the es581.4
variant, the frame will be dispatched to es581_4_tx_can_msg(), go
through the last check at the beginning of this function:

	if (can_is_canfd_skb(skb))
		return -EMSGSIZE;

and reach this line:

	memcpy(tx_can_msg->data, cf->data, cf->len);

Here, cf->len corresponds to the flags field of the CAN XL frame. In
our previous example, we set canxl_frame->flags to 0xff. Because the
maximum expected length is 8, a buffer overflow of 247 bytes occurs!

Populate net_device_ops->ndo_change_mtu() to ensure that the
interface's MTU can not be set to anything bigger than CAN_MTU or
CANFD_MTU (depending on the device capabilities). By fixing the root
cause, this prevents the buffer overflow.

Fixes: 8537257874 ("can: etas_es58x: add core support for ETAS ES58X CAN USB interfaces")
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Link: https://patch.msgid.link/20250918-can-fix-mtu-v1-1-0d1cada9393b@kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:09 +02:00
Sabrina Dubroca
9fcedabaae xfrm: xfrm_alloc_spi shouldn't use 0 as SPI
[ Upstream commit cd8ae32e4e ]

x->id.spi == 0 means "no SPI assigned", but since commit
94f39804d8 ("xfrm: Duplicate SPI Handling"), we now create states
and add them to the byspi list with this value.

__xfrm_state_delete doesn't remove those states from the byspi list,
since they shouldn't be there, and this shows up as a UAF the next
time we go through the byspi list.

Reported-by: syzbot+a25ee9d20d31e483ba7b@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=a25ee9d20d31e483ba7b
Fixes: 94f39804d8 ("xfrm: Duplicate SPI Handling")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:09 +02:00
Leon Hwang
452ad25358 bpf: Reject bpf_timer for PREEMPT_RT
[ Upstream commit e25ddfb388 ]

When enable CONFIG_PREEMPT_RT, the kernel will warn when run timer
selftests by './test_progs -t timer':

BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48

In order to avoid such warning, reject bpf_timer in verifier when
PREEMPT_RT is enabled.

Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/r/20250910125740.52172-2-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:09 +02:00
Geert Uytterhoeven
7a75aae4c0 can: rcar_can: rcar_can_resume(): fix s2ram with PSCI
[ Upstream commit 5c793afa07 ]

On R-Car Gen3 using PSCI, s2ram powers down the SoC.  After resume, the
CAN interface no longer works, until it is brought down and up again.

Fix this by calling rcar_can_start() from the PM resume callback, to
fully initialize the controller instead of just restarting it.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/699b2f7fcb60b31b6f976a37f08ce99c5ffccb31.1755165227.git.geert+renesas@glider.be
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:08 +02:00
James Guan
79dc6d4932 wifi: virt_wifi: Fix page fault on connect
[ Upstream commit 9c600589e1 ]

This patch prevents page fault in __cfg80211_connect_result()[1]
when connecting a virt_wifi device, while ensuring that virt_wifi
can connect properly.

[1] https://lore.kernel.org/linux-wireless/20250909063213.1055024-1-guan_yufei@163.com/

Closes: https://lore.kernel.org/linux-wireless/20250909063213.1055024-1-guan_yufei@163.com/
Signed-off-by: James Guan <guan_yufei@163.com>
Link: https://patch.msgid.link/20250910111929.137049-1-guan_yufei@163.com
[remove irrelevant network-manager instructions]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:08 +02:00
Mark Harmstone
7b478122cd btrfs: don't allow adding block device of less than 1 MB
[ Upstream commit 3d1267475b ]

Commit 15ae0410c37a79 ("btrfs-progs: add error handling for
device_get_partition_size_fd_stat()") in btrfs-progs inadvertently
changed it so that if the BLKGETSIZE64 ioctl on a block device returned
a size of 0, this was no longer seen as an error condition.

Unfortunately this is how disconnected NBD devices behave, meaning that
with btrfs-progs 6.16 it's now possible to add a device you can't
remove:

  # btrfs device add /dev/nbd0 /root/temp
  # btrfs device remove /dev/nbd0 /root/temp
  ERROR: error removing device '/dev/nbd0': Invalid argument

This check should always have been done kernel-side anyway, so add a
check in btrfs_init_new_device() that the new device doesn't have a size
less than BTRFS_DEVICE_RANGE_RESERVED (i.e. 1 MB).

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Mark Harmstone <mark@harmstone.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:08 +02:00
Jiri Olsa
3d429cb127 bpf: Check the helper function is valid in get_helper_proto
[ Upstream commit e4414b01c1 ]

kernel test robot reported verifier bug [1] where the helper func
pointer could be NULL due to disabled config option.

As Alexei suggested we could check on that in get_helper_proto
directly. Marking tail_call helper func with BPF_PTR_POISON,
because it is unused by design.

  [1] https://lore.kernel.org/oe-lkp/202507160818.68358831-lkp@intel.com

Reported-by: kernel test robot <oliver.sang@intel.com>
Reported-by: syzbot+a9ed3d9132939852d0df@syzkaller.appspotmail.com
Suggested-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Paul Chaignon <paul.chaignon@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20250814200655.945632-1-jolsa@kernel.org
Closes: https://lore.kernel.org/oe-lkp/202507160818.68358831-lkp@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:08 +02:00
Stefan Metzmacher
ecb6383b79 smb: server: use disable_work_sync in transport_rdma.c
[ Upstream commit f7f8925017 ]

This makes it safer during the disconnect and avoids
requeueing.

It's ok to call disable_work[_sync]() more than once.

Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Fixes: 0626e6641f ("cifsd: add server handler for central processing and tranport layers")
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:08 +02:00
Stefan Metzmacher
1d6e5bd5b6 smb: server: don't use delayed_work for post_recv_credits_work
[ Upstream commit 1cde0a74a7 ]

If we are using a hardcoded delay of 0 there's no point in
using delayed_work it only adds confusion.

The client also uses a normal work_struct and now
it is easier to move it to the common smbdirect_socket.

Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Fixes: 0626e6641f ("cifsd: add server handler for central processing and tranport layers")
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:08 +02:00
Christian Loehle
596575060f cpufreq: Initialize cpufreq-based invariance before subsys
[ Upstream commit 8ffe28b4e8 ]

commit 2a6c727387 ("cpufreq: Initialize cpufreq-based
frequency-invariance later") postponed the frequency invariance
initialization to avoid disabling it in the error case.
This isn't locking safe, instead move the initialization up before
the subsys interface is registered (which will rebuild the
sched_domains) and add the corresponding disable on the error path.

Observed lockdep without this patch:
[    0.989686] ======================================================
[    0.989688] WARNING: possible circular locking dependency detected
[    0.989690] 6.17.0-rc4-cix-build+ #31 Tainted: G S
[    0.989691] ------------------------------------------------------
[    0.989692] swapper/0/1 is trying to acquire lock:
[    0.989693] ffff800082ada7f8 (sched_energy_mutex){+.+.}-{4:4}, at: rebuild_sched_domains_energy+0x30/0x58
[    0.989705]
               but task is already holding lock:
[    0.989706] ffff000088c89bc8 (&policy->rwsem){+.+.}-{4:4}, at: cpufreq_online+0x7f8/0xbe0
[    0.989713]
               which lock already depends on the new lock.

Fixes: 2a6c727387 ("cpufreq: Initialize cpufreq-based frequency-invariance later")
Signed-off-by: Christian Loehle <christian.loehle@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:08 +02:00
Jihed Chaibi
6833714e12 ARM: dts: kirkwood: Fix sound DAI cells for OpenRD clients
[ Upstream commit 29341c6c18 ]

A previous commit changed the '#sound-dai-cells' property for the
kirkwood audio controller from 1 to 0 in the kirkwood.dtsi file,
but did not update the corresponding 'sound-dai' property in the
kirkwood-openrd-client.dts file.

This created a mismatch, causing a dtbs_check validation error where
the dts provides one cell (<&audio0 0>) while the .dtsi expects zero.

Remove the extraneous cell from the 'sound-dai' property to fix the
schema validation warning and align with the updated binding.

Fixes: e662e70fa4 ("arm: dts: kirkwood: fix error in #sound-dai-cells size")
Signed-off-by: Jihed Chaibi <jihed.chaibi.dev@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:08 +02:00
Peng Fan
88c1bb807f arm64: dts: imx8mp: Correct thermal sensor index
[ Upstream commit a50342f976 ]

The TMU has two temperature measurement sites located on the chip. The
probe 0 is located inside of the ANAMIX, while the probe 1 is located near
the ARM core. This has been confirmed by checking with HW design team and
checking RTL code.

So correct the {cpu,soc}-thermal sensor index.

Fixes: 30cdd62dce ("arm64: dts: imx8mp: Add thermal zones support")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:08 +02:00
Peng Fan
d755823f2c firmware: imx: Add stub functions for SCMI MISC API
[ Upstream commit b2461e20fa ]

To ensure successful builds when CONFIG_IMX_SCMI_MISC_DRV is not enabled,
this patch adds static inline stub implementations for the following
functions:

  - scmi_imx_misc_ctrl_get()
  - scmi_imx_misc_ctrl_set()

These stubs return -EOPNOTSUPP to indicate that the functionality is not
supported in the current configuration. This avoids potential build or
link errors in code that conditionally calls these functions based on
feature availability.

This patch also drops the changes in commit 540c830212 ("firmware: imx:
remove duplicate scmi_imx_misc_ctrl_get()").

The original change aimed to simplify the handling of optional features by
removing conditional stubs. However, the use of conditional stubs is
necessary when CONFIG_IMX_SCMI_MISC_DRV is n, while consumer driver is
set to y.

This is not a matter of preserving legacy patterns, but rather to ensure
that there is no link error whether for module or built-in.

Fixes: 0b4f8a68b2 ("firmware: imx: Add i.MX95 MISC driver")
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:07 +02:00
Basavaraj Natikar
edeae8be4d HID: amd_sfh: Add sync across amd sfh work functions
[ Upstream commit bba920e6f8 ]

The process of the report is delegated across different work functions.
Hence, add a sync mechanism to protect SFH work data across functions.

Fixes: 4b2c53d93a ("SFH:Transport Driver to add support of AMD Sensor Fusion Hub (SFH)")
Reported-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Closes: https://lore.kernel.org/all/a21abca5-4268-449d-95f1-bdd7a25894a5@linux.dev/
Tested-by: Prakruthi SP <Prakruthi.SP@amd.com>
Co-developed-by: Akshata MukundShetty <akshata.mukundshetty@amd.com>
Signed-off-by: Akshata MukundShetty <akshata.mukundshetty@amd.com>
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:07 +02:00
Or Har-Toov
7a7bb18680 IB/mlx5: Fix obj_type mismatch for SRQ event subscriptions
[ Upstream commit 85fe9f565d ]

Fix a bug where the driver's event subscription logic for SRQ-related
events incorrectly sets obj_type for RMP objects.

When subscribing to SRQ events, get_legacy_obj_type() did not handle
the MLX5_CMD_OP_CREATE_RMP case, which caused obj_type to be 0
(default).
This led to a mismatch between the obj_type used during subscription
(0) and the value used during notification (1, taken from the event's
type field). As a result, event mapping for SRQ objects could fail and
event notification would not be delivered correctly.

This fix adds handling for MLX5_CMD_OP_CREATE_RMP in get_legacy_obj_type,
returning MLX5_EVENT_QUEUE_TYPE_RQ so obj_type is consistent between
subscription and notification.

Fixes: 7597385371 ("IB/mlx5: Enable subscription for device events over DEVX")
Link: https://patch.msgid.link/r/8f1048e3fdd1fde6b90607ce0ed251afaf8a148c.1755088962.git.leon@kernel.org
Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Edward Srouji <edwards@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:07 +02:00
Aleksander Jan Bajkowski
d2be6c429d net: sfp: add quirk for FLYPRO copper SFP+ module
[ Upstream commit ddbf0e78a8 ]

Add quirk for a copper SFP that identifies itself as "FLYPRO"
"SFP-10GT-CS-30M". It uses RollBall protocol to talk to the PHY.

Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/20250831105910.3174-1-olek2@wp.pl
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:07 +02:00
qaqland
2368ce440d ALSA: usb-audio: Add mute TLV for playback volumes on more devices
[ Upstream commit 2cbe4ac193 ]

Applying the quirk of that, the lowest Playback mixer volume setting
mutes the audio output, on more devices.

Suggested-by: Cryolitia PukNgae <cryolitia@uniontech.com>
Signed-off-by: qaqland <anguoli@uniontech.com>
Link: https://patch.msgid.link/20250829-sound_quirk-v1-1-745529b44440@uniontech.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:07 +02:00
Cryolitia PukNgae
c2564438d3 ALSA: usb-audio: move mixer_quirks' min_mute into common quirk
[ Upstream commit 2c3ca8cc55 ]

We have found more and more devices that have the same problem, that
the mixer's minimum value is muted. Accroding to pipewire's MR[1]
and Arch Linux wiki[2], this should be a very common problem in USB
audio devices. Move the quirk into common quirk,as a preparation of
more devices' quirk's patch coming on the road[3].

1. https://gitlab.freedesktop.org/pipewire/pipewire/-/merge_requests/2514
2. https://wiki.archlinux.org/index.php?title=PipeWire&oldid=804138#No_sound_from_USB_DAC_until_30%_volume
3. On the road, in the physical sense. We have been buying ton of
   these devices for testing the problem.

Tested-by: Guoli An <anguoli@uniontech.com>
Signed-off-by: Cryolitia PukNgae <cryolitia@uniontech.com>
Link: https://patch.msgid.link/20250827-sound-quirk-min-mute-v1-1-4717aa8a4f6a@uniontech.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:07 +02:00
noble.yang
6074537a68 ALSA: usb-audio: Add DSD support for Comtrue USB Audio device
[ Upstream commit e9df175548 ]

The vendor Comtrue Inc. (0x2fc6) produces USB audio chipsets like
the CT7601 which are capable of Native DSD playback.

This patch adds QUIRK_FLAG_DSD_RAW for Comtrue (VID 0x2fc6), which enables
native DSD playback (DSD_U32_LE) on their USB Audio device. This has been
verified under Ubuntu 25.04 with JRiver.

Signed-off-by: noble.yang <noble.yang@comtrue-inc.com>
Link: https://patch.msgid.link/20250731110614.4070-1-noble228@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:07 +02:00
Heikki Krogerus
5cae542051 i2c: designware: Add quirk for Intel Xe
[ Upstream commit f6a8e9f3de ]

The regmap is coming from the parent also in case of Xe
GPUs. Reusing the Wangxun quirk for that.

Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Co-developed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20250701122252.2590230-3-heikki.krogerus@linux.intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
[Rodrigo fixed the co-developed tags while merging]
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:07 +02:00
Benoît Monin
aaac704646 mmc: sdhci-cadence: add Mobileye eyeQ support
[ Upstream commit 120ffe250d ]

The MMC/SDHCI controller implemented by Mobileye needs the preset value
quirks to configure the clock properly at speed slower than HS200.
It otherwise works as a standard sd4hc controller.

Signed-off-by: Benoît Monin <benoit.monin@bootlin.com>
Link: https://lore.kernel.org/r/e97f409650495791e07484589e1666ead570fa12.1750156323.git.benoit.monin@bootlin.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:06 +02:00
Chris Morgan
34a8909831 net: sfp: add quirk for Potron SFP+ XGSPON ONU Stick
[ Upstream commit dfec1c14ae ]

Add quirk for Potron SFP+ XGSPON ONU Stick (YV SFP+ONT-XGSPON).

This device uses pins 2 and 7 for UART communication, so disable
TX_FAULT and LOS. Additionally as it is an embedded system in an
SFP+ form factor provide it enough time to fully boot before we
attempt to use it.

https://www.potrontec.com/index/index/list/cat_id/2.html#11-83
https://pon.wiki/xgs-pon/ont/potron-technology/x-onu-sfpp/

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://patch.msgid.link/20250617180324.229487-1-macroalpha82@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:06 +02:00
Marc Kleine-Budde
7edb8abcc9 net: fec: rename struct fec_devinfo fec_imx6x_info -> fec_imx6sx_info
[ Upstream commit 4e8594a886 ]

In da722186f6 ("net: fec: set GPR bit on suspend by DT
configuration.") the platform_device_id fec_devtype::driver_data was
converted from holding the quirks to a pointing to struct fec_devinfo.

The struct fec_devinfo holding the information for the i.MX6SX was
named fec_imx6x_info.

Rename fec_imx6x_info to fec_imx6sx_info to align with the SoC's name.

Reviewed-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://patch.msgid.link/20250618-fec-cleanups-v4-5-c16f9a1af124@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:06 +02:00
Jiayi Li
9e85e98516 usb: core: Add 0x prefix to quirks debug output
[ Upstream commit 47c428fce0 ]

Use "0x%x" format for quirks debug print to clarify it's a hexadecimal
value. Improves readability and consistency with other hex outputs.

Signed-off-by: Jiayi Li <lijiayi@kylinos.cn>
Link: https://lore.kernel.org/r/20250603071045.3243699-1-lijiayi@kylinos.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:06 +02:00
Takashi Iwai
6b66c7181d ALSA: usb-audio: Fix build with CONFIG_INPUT=n
[ Upstream commit d0630a0b80 ]

The recent addition of DualSense mixer quirk relies on the input
device handle, and the build can fail if CONFIG_INPUT isn't set.
Put (rather ugly) workarounds to wrap with IS_REACHABLE() for avoiding
the build error.

Fixes: 79d561c4ec ("ALSA: usb-audio: Add mixer quirk for Sony DualSense PS5")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202506130733.gnPKw2l3-lkp@intel.com/
Reviewed-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://patch.msgid.link/20250613081543.7404-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:06 +02:00
Stefan Binding
a9bed48dde ALSA: hda/realtek: Add support for ASUS NUC using CS35L41 HDA
[ Upstream commit 84fc8896f0 ]

Add support for ASUS NUC14LNS.

This NUC uses a single CS35L41 Amp in using Internal Boost with SPI.
To support the Single Amp, a new quirk is required.

Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Link: https://patch.msgid.link/20250612160029.848104-3-sbinding@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:06 +02:00
Chen Ni
1f1bc26ba9 ALSA: usb-audio: Convert comma to semicolon
[ Upstream commit 9ca30a1b00 ]

Replace comma between expressions with semicolons.

Using a ',' in place of a ';' can have unintended side effects.
Although that is not the case here, it is seems best to use ';'
unless ',' is intended.

Found by inspection.
No functional change intended.
Compile tested only.

Fixes: 79d561c4ec ("ALSA: usb-audio: Add mixer quirk for Sony DualSense PS5")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Reviewed-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://patch.msgid.link/20250612060228.1518028-1-nichen@iscas.ac.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:44:06 +02:00