mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
synced 2026-11-10 20:48:12 +00:00
1,461,847 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Muhammad Bilal
|
d5541eb148 |
Bluetooth: ISO: avoid NULL deref of conn in iso_conn_big_sync()
iso_conn_big_sync() drops the socket lock to call hci_get_route() and
then re-acquires it, but dereferences iso_pi(sk)->conn->hcon afterwards
without re-checking that conn is still valid.
While the lock is dropped, the connection can be torn down under the
same socket lock: iso_disconn_cfm() -> iso_conn_del() -> iso_chan_del()
sets iso_pi(sk)->conn to NULL (and the broadcast teardown path can also
clear conn->hcon on its own). When iso_conn_big_sync() re-acquires the
lock and reads conn->hcon, conn may be NULL, causing a NULL pointer
dereference (hcon is the first member of struct iso_conn).
This path is reached from iso_sock_recvmsg() for a PA-sync broadcast
sink socket (BT_SK_DEFER_SETUP | BT_SK_PA_SYNC), so the dropped-lock
window can race with connection teardown driven by controller events.
Re-validate iso_pi(sk)->conn and its hcon after re-acquiring the socket
lock and bail out if the connection went away, as already done in the
sibling iso_sock_rebind_bc().
Fixes:
|
||
Samuel Page
|
fa85d985f6 |
Bluetooth: MGMT: Fix UAF of hci_conn_params in add_device_complete
add_device_complete() runs from the hci_cmd_sync_work kworker, which
holds only hci_req_sync_lock and *not* hci_dev_lock. It calls
hci_conn_params_lookup() and then dereferences the returned object
(params->flags) without taking hci_dev_lock:
params = hci_conn_params_lookup(hdev, &cp->addr.bdaddr,
le_addr_type(cp->addr.type));
...
device_flags_changed(NULL, hdev, &cp->addr.bdaddr,
cp->addr.type, hdev->conn_flags,
params ? params->flags : 0);
hci_conn_params_lookup() walks hdev->le_conn_params and is documented to
require hdev->lock. A concurrent MGMT_OP_REMOVE_DEVICE
(remove_device()), which does run under hci_dev_lock, can call
hci_conn_params_free() to list_del() and kfree() the very object the
lookup returned, so the subsequent params->flags read touches freed
memory [0].
Hold hci_dev_lock() across the hci_conn_params_lookup() and the read of
params->flags (and the matching event emission) so the lookup result
cannot be freed by a concurrent remove_device() before it is used,
honouring the locking contract of hci_conn_params_lookup().
[0]: (trailing page/memory-state dump trimmed)
BUG: KASAN: slab-use-after-free in add_device_complete+0x358/0x3d8 net/bluetooth/mgmt.c:7671
Read of size 1 at addr ffff000017ab26c1 by task kworker/u9:8/388
CPU: 1 UID: 0 PID: 388 Comm: kworker/u9:8 Not tainted 7.0.11 #20 PREEMPT
Hardware name: linux,dummy-virt (DT)
Workqueue: hci0 hci_cmd_sync_work
Call trace:
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0xb4/0xd4 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0x118/0x5d8 mm/kasan/report.c:482
kasan_report+0xb0/0xf4 mm/kasan/report.c:595
__asan_report_load1_noabort+0x20/0x2c mm/kasan/report_generic.c:378
add_device_complete+0x358/0x3d8 net/bluetooth/mgmt.c:7671
hci_cmd_sync_work+0x14c/0x240 net/bluetooth/hci_sync.c:334
process_one_work+0x628/0xd38 kernel/workqueue.c:3289
process_scheduled_works kernel/workqueue.c:3372 [inline]
worker_thread+0x7a8/0xac0 kernel/workqueue.c:3453
kthread+0x39c/0x444 kernel/kthread.c:436
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Allocated by task 3401:
kasan_save_stack+0x3c/0x64 mm/kasan/common.c:57
kasan_save_track+0x20/0x3c mm/kasan/common.c:78
kasan_save_alloc_info+0x40/0x54 mm/kasan/generic.c:570
poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
__kasan_kmalloc+0xd4/0xd8 mm/kasan/common.c:415
kasan_kmalloc include/linux/kasan.h:263 [inline]
__kmalloc_cache_noprof+0x1b0/0x458 mm/slub.c:5385
kmalloc_noprof include/linux/slab.h:950 [inline]
kzalloc_noprof include/linux/slab.h:1188 [inline]
hci_conn_params_add+0x10c/0x4b0 net/bluetooth/hci_core.c:2279
hci_conn_params_set net/bluetooth/mgmt.c:5162 [inline]
add_device+0x5b4/0xa54 net/bluetooth/mgmt.c:7755
hci_mgmt_cmd net/bluetooth/hci_sock.c:1721 [inline]
hci_sock_sendmsg+0x10b4/0x1dd0 net/bluetooth/hci_sock.c:1841
sock_sendmsg_nosec net/socket.c:727 [inline]
__sock_sendmsg+0xe0/0x128 net/socket.c:742
sock_write_iter+0x250/0x390 net/socket.c:1195
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x66c/0xab0 fs/read_write.c:688
ksys_write+0x1fc/0x24c fs/read_write.c:740
__do_sys_write fs/read_write.c:751 [inline]
__se_sys_write fs/read_write.c:748 [inline]
__arm64_sys_write+0x70/0xa4 fs/read_write.c:748
__invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x84/0x2a8 arch/arm64/kernel/syscall.c:49
el0_svc_common.constprop.0+0xe4/0x294 arch/arm64/kernel/syscall.c:132
do_el0_svc+0x44/0x5c arch/arm64/kernel/syscall.c:151
el0_svc+0x38/0xac arch/arm64/kernel/entry-common.c:724
el0t_64_sync_handler+0xa0/0xe4 arch/arm64/kernel/entry-common.c:743
el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
Freed by task 3740:
kasan_save_stack+0x3c/0x64 mm/kasan/common.c:57
kasan_save_track+0x20/0x3c mm/kasan/common.c:78
kasan_save_free_info+0x4c/0x74 mm/kasan/generic.c:584
poison_slab_object mm/kasan/common.c:253 [inline]
__kasan_slab_free+0x88/0xb8 mm/kasan/common.c:285
kasan_slab_free include/linux/kasan.h:235 [inline]
slab_free_hook mm/slub.c:2685 [inline]
slab_free mm/slub.c:6170 [inline]
kfree+0x14c/0x458 mm/slub.c:6488
hci_conn_params_free+0x288/0x484 net/bluetooth/hci_core.c:2312
remove_device+0x4b0/0x968 net/bluetooth/mgmt.c:7919
hci_mgmt_cmd net/bluetooth/hci_sock.c:1721 [inline]
hci_sock_sendmsg+0x10b4/0x1dd0 net/bluetooth/hci_sock.c:1841
sock_sendmsg_nosec net/socket.c:727 [inline]
__sock_sendmsg+0xe0/0x128 net/socket.c:742
sock_write_iter+0x250/0x390 net/socket.c:1195
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x66c/0xab0 fs/read_write.c:688
ksys_write+0x1fc/0x24c fs/read_write.c:740
__do_sys_write fs/read_write.c:751 [inline]
__se_sys_write fs/read_write.c:748 [inline]
__arm64_sys_write+0x70/0xa4 fs/read_write.c:748
__invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x84/0x2a8 arch/arm64/kernel/syscall.c:49
el0_svc_common.constprop.0+0xe4/0x294 arch/arm64/kernel/syscall.c:132
do_el0_svc+0x44/0x5c arch/arm64/kernel/syscall.c:151
el0_svc+0x38/0xac arch/arm64/kernel/entry-common.c:724
el0t_64_sync_handler+0xa0/0xe4 arch/arm64/kernel/entry-common.c:743
el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
Fixes:
|
||
Luiz Augusto von Dentz
|
d38eaf6118 |
Bluetooth: 6lowpan: Fix using chan->conn as indication to no remote netdev
|
||
Pauli Virtanen
|
1b0d946d6f |
Bluetooth: hci_uart: clear HCI_UART_SENDING when write_work is canceled
HCI_UART_SENDING bit in tx_state means write_work is pending and blocks
queueing it again. Currently this bit is not cleared when canceling the
work in hci_uart_close(), which blocks future writes when device is
reopened later if write_work was pending.
Fix by clearing HCI_UART_SENDING when canceling the work.
Also make clearing of tx_skb safe by using disable_work_sync +
enable_work instead of just cancel_work_sync. hci_uart_flush() purges
the proto tx queue so we can cancel the pending write_work there,
instead of doing it just in hci_uart_close(). Re-enable and possibly
requeue the work after queue flush.
Fixes:
|
||
Eric Dumazet
|
9e05e91a9a |
amt: fix size calculation in amt_get_size()
amt_get_size() incorrectly used sizeof(struct iphdr) for the sizes of
IFLA_AMT_DISCOVERY_IP, IFLA_AMT_REMOTE_IP, and IFLA_AMT_LOCAL_IP.
These attributes contain IPv4 addresses (__be32), not full IP headers.
Replace sizeof(struct iphdr) with sizeof(__be32) to avoid over-allocating
netlink message space.
Fixes:
|
||
Xiang Mei
|
9d160b35cc |
net/smc: fix UAF in smc_cdc_rx_handler() by pinning the socket
smc_cdc_rx_handler() looks up the connection by token under the link
group's conns_lock, drops the lock, and then dereferences conn and the
smc_sock derived from it, ending in sock_hold(&smc->sk) inside
smc_cdc_msg_recv(). No reference is held across the lock release.
The only reference pinning the socket while the connection is
discoverable in the link group is taken in smc_lgr_register_conn()
(sock_hold) and dropped in __smc_lgr_unregister_conn() (sock_put), both
under conns_lock. Once the handler drops conns_lock, a concurrent
close() -> smc_release() -> smc_conn_free() -> smc_lgr_unregister_conn()
can drop that reference and free the smc_sock, so the handler's later
sock_hold() runs on freed memory:
WARNING: lib/refcount.c:25 at refcount_warn_saturate
Workqueue: rxe_wq do_work
refcount_warn_saturate (lib/refcount.c:25)
smc_cdc_msg_recv (net/smc/smc_cdc.c:430)
smc_cdc_rx_handler (net/smc/smc_cdc.c:502)
smc_wr_rx_tasklet_fn (net/smc/smc_wr.c:445)
tasklet_action_common (kernel/softirq.c:938)
handle_softirqs (kernel/softirq.c:622)
Kernel panic - not syncing: panic_on_warn set
Only SMC-R is affected. The SMC-D receive tasklet is stopped by
tasklet_kill(&conn->rx_tsklet) in smc_conn_free() before the connection
is unregistered, so it cannot run concurrently with the free.
Take the socket reference while still holding conns_lock, so the
registration reference can no longer be the last one, and drop it once
the handler is done.
Fixes:
|
||
Jamal Hadi Salim
|
8b519cbcab |
net/sched: act_pedit: fix TOCTOU heap OOB write in tc offload
There is a TOCTOU race condition in flower lockless approach between sizing
a flow_rule buffer and filling it.
zdi-disclosures@trendmicro.com reports:
The cls_flower classifier operates with TCF_PROTO_OPS_DOIT_UNLOCKED
(fl_change runs without RTNL), while RTM_NEWACTION holds RTNL, so the
independent locking domains make the race reachable in practice. KASAN
confirms:
BUG: KASAN: slab-out-of-bounds in tcf_pedit_offload_act_setup+0x81b/0x930
Write of size 4 at addr ffff888001f27520 by task poc-toctou/312
The buggy address is located 0 bytes to the right of
allocated 288-byte region [ffff888001f27400, ffff888001f27520)
(cache kmalloc-512)
Note: The result is a heap OOB write attacker-controlled content into the
adjacent slab object (requires CAP_NET_ADMIN).
The fix introduces reading tcfp_nkeys under act->tcfa_lock in all places
using a new tcf_pedit_nkeys_locked() which replaces the old tcf_pedit_nkeys().
Additionally we close the remaining TOCTOU window between the sizing read and
the fill reads by more careful accounting.
Rather than silently truncating the key count, which leads to incorrect
action semantics offloaded to hardware and secondary OOB writes if
the remaining capacity is zero or consumed by prior actions, we enforce
remaining capacity checks and return -ENOSPC if the required space exceeds
the remaining capacity.
Fixes:
|
||
|
Xiang Mei
|
f0f1887a9e |
net: qualcomm: rmnet: validate MAP frame length before ingress parsing
When ingress deaggregation is disabled, rmnet_map_ingress_handler() passes
the skb straight to __rmnet_map_ingress_handler(), skipping the length
validation that rmnet_map_deaggregate() performs on the aggregated path.
The parser then dereferences the MAP header and csum header/trailer based on
the on-wire pkt_len without checking skb->len, so a short frame is read out
of bounds:
BUG: KASAN: slab-out-of-bounds in rmnet_map_checksum_downlink_packet
Read of size 1 at addr ffff88801118ed00 by task exploit/147
Call Trace:
...
rmnet_map_checksum_downlink_packet (drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:413)
__rmnet_map_ingress_handler (drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c:96)
rmnet_rx_handler (drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c:129)
__netif_receive_skb_core.constprop.0 (net/core/dev.c:6089)
netif_receive_skb (net/core/dev.c:6460)
tun_get_user (drivers/net/tun.c:1955)
tun_chr_write_iter (drivers/net/tun.c:2001)
vfs_write (fs/read_write.c:688)
ksys_write (fs/read_write.c:740)
do_syscall_64 (arch/x86/entry/syscall_64.c:94)
...
Factor that validation out of rmnet_map_deaggregate() into
rmnet_map_validate_packet_len() and run it on the no-aggregation path too.
The MAP header is bounds-checked first, since this path can receive a frame
shorter than the header.
Fixes:
|
||
Paolo Abeni
|
b65a794f50 |
netfilter pull request nf-26-07-03
-----BEGIN PGP SIGNATURE----- iQJdBAABCABHFiEEgKkgxbID4Gn1hq6fcJGo2a1f9gAFAmpHsDkbFIAAAAAABAAO bWFudTIsMi41KzEuMTIsMiwyDRxmd0BzdHJsZW4uZGUACgkQcJGo2a1f9gCt9w/+ Ps5fmwtUyyGhXzk51eqqikI/Xl6ZdHqiwow4UeY+0pJx6cWskF8qkb6H+n3j63XA piEI14aCeYks1qRi9Za/Wjx+sP00c3KgOMGrwbVLoLtzY6tsXJ/H1KQTKZjQp72K R9lE0NnJdK82gxT304p8RZSDM1xmcVVsmJQVJtp46OOrT8W4T/hHo/JficJoDXdX Vigu9vB5NPOYCxso7BEHczw0SCJyF9XB7vaPdfjkqxVAeIvDn9tzWDIxJM5V50ky sM5yckgObkjycl6hJvT2ZWlnbtD5Cm61otQao1SRt3f4IvtSVxhQLNroJzPCUYBv F2edKWf/Wop/OpVJsCm8DWC/pLphmqdU0iyZfCKk19BqND7rulBJniF3/EeyhgKN ZMHlBzgVmDA6fW2CT+IXzderCAmcK7Rxt7aduy0P/So0pYwL5fs/r+V57xN/kbFP dSMz9pzFef8YxTy3JFGYyrf9WlmPOwlVV5clA6fPloIbts/EshAeYGhnD6El7bIi 89GOeH806He8x7hrc2xgQ7XlVBH/lg7QdAc+VEioxo3LWcX7qrow3yWNGmu9ID7l SKOV0v60KMeqYD+9bRp48odLB0f1tVY4vt4L/vQKQDZB9N1GCwpnvQriQU4qQ5DN j96cQcE4zXcnbrCrnI3g1wDLVolkfIT0d8SoQtNmrIk= =5f46 -----END PGP SIGNATURE----- Merge tag 'nf-26-07-03' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf Florian Westphal says: ==================== netfilter: updates for net The following patchset contains Netfilter fixes for *net*, all for ancient problems. Patch 7 raised drive-by sashiko findings, but those are not related to the change itself. 1) Rebuild the nf_nat_sip data pointer to prevent stale access after SKB reallocation. Restrict UDP mangling to UDP streams to avoid TCP packet corruption. 2) Prevent undefined behavior in xt_u32 caused by invalid shift counts. From Wyatt Feng. 3) Use u64 variables to prevent incorrect comparisons on links exceeding 34 Gbps in xt_rateest. From Feng Wu. 4) Cap the number of expectations per master during nfnetlink_cthelper updates. From Pablo Neira Ayuso. 5) Mark malformed IPv6 extension headers for hotdrop in ip6tables. From Zhixing Chen. 6) Skip the end element of an open interval during the get command when its closest match is the interval's start element. Also from Pablo Neira Ayuso. 7) Fix PMTU calculation for GUE/GRE tunnels in IPVS during ICMP fragmentation error handling. Include additional tunnel header length when computing the new MTU. From Yizhou Zhao. 8) Reset full ip_vs_seq structures in ip_vs_conn_new. Also from Yizhou Zhao. 9) Reject invalid shift parameters in xt_connmark. Also from Wyatt Feng. netfilter pull request nf-26-07-03 * tag 'nf-26-07-03' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf: netfilter: xt_connmark: reject invalid shift parameters ipvs: reset full ip_vs_seq structs in ip_vs_conn_new ipvs: fix PMTU for GUE/GRE tunnel ICMP errors netfilter: nft_set_rbtree: get command skips end element with open interval netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop netfilter: nfnetlink_cthelper: cap to maximum number of expectation per master on updates netfilter: xt_rateest: fix u64 truncation in xt_rateest_mt() netfilter: xt_u32: reject invalid shift counts netfilter: nf_nat_sip: reload possible stale data pointer ==================== Link: https://patch.msgid.link/20260703125709.16493-1-fw@strlen.de Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
Nirmoy Das
|
dd6a23bac3 |
selftests: net: make busywait timeout clock portable
loopy_wait() expects millisecond timestamps. However, Ubuntu Resolute
can use uutils date, where `date -u +%s%3N` returns seconds plus full
nanoseconds instead of a 3-digit millisecond field. This makes
busywait expire too early and can make vlan_bridge_binding.sh read a
stale operstate.
Fixes:
|
||
Shigeru Yoshida
|
a0a558ca7e |
qede: fix off-by-one in BD ring consumption on build_skb failure
qede_rx_build_skb() and qede_tpa_rx_build_skb() do not check for a NULL return from qede_build_skb(). When it returns NULL under memory pressure, the functions still consume a BD from the ring before returning NULL. The callers then recycle additional BDs, resulting in one extra BD being consumed (off-by-one). This desynchronizes the BD ring, which can corrupt DMA page reference counts and lead to SLUB freelist corruption. Commit |
||
Jens Emil Schulz Østergaard
|
d7a8d500d7 |
net: microchip: vcap: fix races on the shared Super VCAP block
The VCAP instances on a chip are not independent, yet they are locked
independently. On sparx5 and lan969x the IS0 and IS2 instances are
backed by the same Super VCAP hardware block and share its cache and
command registers: every access drives the shared VCAP_SUPER_CTRL
register and moves data through the shared cache registers.
Accessing one instance therefore races with accessing another. The
per-instance admin->lock cannot prevent this, as each instance takes a
different lock.
The locking issue is mostly disguised by the fact that the core usage of
the vcap api runs under rtnl. However, the full rule dump in debugfs
decodes rules straight from hardware (a READ command followed by a cache
read) and runs outside rtnl, so it races a concurrent tc-flower rule
write to another Super VCAP instance.
Besides corrupting the dump, the read repopulates the shared cache
between the writers cache fill and its write command, so the writer
commits the wrong data and corrupts the hardware entry.
Introduce vcap_lock() and vcap_unlock() helpers and route every rule
lock site in the VCAP API and its debugfs code through them. Replace the
per-instance admin->lock with a single mutex in struct vcap_control that
serializes access to all instances. The helpers reach it through a new
admin->vctrl back-pointer, and the clients initialise and destroy the
control lock instead of a per-instance one.
No path holds more than one instance lock, so collapsing them onto a
single mutex cannot self-deadlock.
Fixes:
|
||
Shuangpeng Bai
|
660667cd40 |
llc: fix SAP refcount leak in llc_ui_autobind()
llc_ui_autobind() opens a SAP after choosing a dynamic LSAP.
llc_sap_open() returns a reference owned by the caller, and
llc_sap_add_socket() takes a second reference for the socket's
membership in the SAP hash tables.
llc_ui_bind() drops the caller's reference after adding the socket,
but llc_ui_autobind() keeps it. When the socket is closed,
llc_sap_remove_socket() releases only the socket reference, leaving
the SAP on llc_sap_list with sk_count == 0.
This is user-visible because repeated autobind and close cycles can consume
all dynamic SAP values and make later autobinds fail with -EUSERS.
Drop the caller's reference after a successful autobind, matching
llc_ui_bind()'s ownership model.
Fixes:
|
||
|
Paolo Abeni
|
d645674342 |
Merge branch 'net-mlx5e-fix-crashes-in-dynamic-per-channel-stats-and-hv-vhca-agent'
Tariq Toukan says:
====================
net/mlx5e: Fix crashes in dynamic per-channel stats and HV VHCA agent
Since per-channel stats were converted to be allocated and published
lazily at first channel open in commit
|
||
Feng Liu
|
5a799714e8 |
net/mlx5e: Fix publication race for priv->channel_stats[]
mlx5e_channel_stats_alloc() publishes a new entry to
priv->channel_stats[] and then increments priv->stats_nch as a
publication token, but neither store carries any memory barrier:
priv->channel_stats[ix] = kvzalloc_node(...);
if (!priv->channel_stats[ix])
return -ENOMEM;
priv->stats_nch++;
Concurrent readers compute the loop bound from priv->stats_nch and
then dereference priv->channel_stats[i] using plain accesses, e.g.
for (i = 0; i < priv->stats_nch; i++) {
struct mlx5e_channel_stats *cs = priv->channel_stats[i];
... cs->rq.packets ...
}
On weakly-ordered architectures (ARM, PowerPC, RISC-V) the writes to
channel_stats[ix] and stats_nch may become visible to other CPUs out
of program order. A reader can observe stats_nch == N while still
seeing channel_stats[N-1] == NULL, leading to a NULL pointer
dereference in the channel_stats loop.
This has been observed in production on BlueField-3 DPUs (arm64),
where ovs-vswitchd queries netdev statistics over netlink during NIC
bringup, racing mlx5e_open_channel() -> mlx5e_channel_stats_alloc()
on another CPU:
Unable to handle kernel NULL pointer dereference at virtual address 0x840
Hardware name: BlueField-3 DPU
pc : mlx5e_fold_sw_stats64+0x30/0x180 [mlx5_core]
Call trace:
mlx5e_fold_sw_stats64+0x30/0x180 [mlx5_core]
dev_get_stats+0x50/0xc0
ovs_vport_get_stats+0x38/0xac [openvswitch]
ovs_vport_cmd_fill_info+0x194/0x290 [openvswitch]
ovs_vport_cmd_get+0xbc/0x10c [openvswitch]
genl_family_rcv_msg_doit+0xd0/0x160
genl_rcv_msg+0xec/0x1f0
netlink_rcv_skb+0x64/0x130
genl_rcv+0x40/0x60
netlink_unicast+0x2fc/0x370
netlink_sendmsg+0x1dc/0x454
...
__arm64_sys_sendmsg+0x2c/0x40
Add mlx5e_stats_nch_write() and mlx5e_stats_nch_read() helpers in en.h
that wrap the smp_store_release()/smp_load_acquire() pair on stats_nch.
The release/acquire pair establishes the contract:
stats_nch == N => channel_stats[0..N-1] are visible and non-NULL.
Publish the stats_nch increment via mlx5e_stats_nch_write() in the
writer (mlx5e_channel_stats_alloc()), and read stats_nch via
mlx5e_stats_nch_read() in all readers: mlx5e RX/TX queue stats,
mlx5e_get_base_stats(), ethtool channels stats, IPoIB stats, the
sw_stats fold and the HV VHCA stats agent.
Fixes:
|
||
|
Feng Liu
|
89b25b5f46 |
net/mlx5e: Fix HV VHCA stats agent registration race
mlx5e_hv_vhca_stats_create() registers the stats agent through
mlx5_hv_vhca_agent_create(). The helper publishes the agent in
hv_vhca->agents[type] under agents_lock and immediately schedules an
asynchronous control invalidation on the HV VHCA workqueue before
returning to mlx5e.
The asynchronous invalidation invokes the control agent's invalidate
callback, which reads the hypervisor control block and forwards the
command to mlx5e_hv_vhca_stats_control(). That callback may either:
- call cancel_delayed_work_sync(&priv->stats_agent.work), or
- call queue_delayed_work(priv->wq, &sagent->work, sagent->delay).
However, the delayed_work and priv->stats_agent.agent are only
initialized after mlx5_hv_vhca_agent_create() returns to mlx5e:
agent = mlx5_hv_vhca_agent_create(...); /* publish + invalidate */
...
priv->stats_agent.agent = agent; /* too late */
INIT_DELAYED_WORK(&priv->stats_agent.work, ...); /* too late */
If the asynchronous control path runs before the two assignments
above, it can:
- Operate on an uninitialized delayed_work whose timer.function is
NULL. queue_delayed_work() calls add_timer() unconditionally, so
when the timer expires the timer softirq invokes a NULL function
pointer.
- Re-initialize the timer later through INIT_DELAYED_WORK() while
the timer is already enqueued in the timer wheel, corrupting the
hlist (entry.pprev cleared while the previous bucket node still
points at this entry).
- When the worker eventually runs, mlx5e_hv_vhca_stats_work() reads
sagent->agent (NULL) and dereferences it inside
mlx5_hv_vhca_agent_write().
Fix this by:
- Initializing priv->stats_agent.work before invoking
mlx5_hv_vhca_agent_create(), so the work is always in a valid
state when the control callback observes it.
- Adding a struct mlx5_hv_vhca_agent **ctx_update out-parameter
to mlx5_hv_vhca_agent_create(). The helper writes the agent
pointer to *ctx_update before publishing into hv_vhca->agents[]
and triggering the agents_update flow, so any callback
subsequently invoked from that flow already sees a valid
priv->stats_agent.agent. This avoids having the control
callback participate in agent initialization.
While at it, access priv->stats_agent.agent with
READ_ONCE()/WRITE_ONCE() for the cross-CPU access with the worker, and
clear priv->stats_agent.buf on the agent_create() failure path.
Fixes:
|
||
|
Feng Liu
|
25f6b929c7 |
net/mlx5e: Fix HV VHCA stats zero-sized buffer allocation
mlx5e_hv_vhca_stats_create() is called from mlx5e_nic_enable(),
before mlx5e_open(). At that point priv->stats_nch is still zero,
because it is only ever incremented in mlx5e_channel_stats_alloc(),
which is reached only from mlx5e_open_channel().
mlx5e_hv_vhca_stats_buf_size() therefore returns 0, and
kvzalloc(0, GFP_KERNEL) returns ZERO_SIZE_PTR ((void *)16) rather
than NULL. The "if (!buf)" guard does not catch this, and
mlx5e_hv_vhca_stats_create() completes "successfully" with
priv->stats_agent.buf set to ZERO_SIZE_PTR.
Once channels are opened (priv->stats_nch > 0) and the hypervisor
enables stats reporting, mlx5e_hv_vhca_stats_work() recomputes
buf_len using the new non-zero stats_nch and calls
memset(buf, 0, buf_len) on ZERO_SIZE_PTR, faulting at address 0x10.
Allocate the buffer based on priv->max_nch, which is set in
mlx5e_priv_init() and is the upper bound on stats_nch:
- Add a separate helper mlx5e_hv_vhca_stats_buf_max_size() that
returns sizeof(per_ring_stats) * max(max_nch, stats_nch), and
use it for the kvzalloc() in mlx5e_hv_vhca_stats_create().
- Keep mlx5e_hv_vhca_stats_buf_size() (which returns based on
stats_nch) for the worker's active payload size, so the wire
format (block->rings = stats_nch) and the amount of data filled
by mlx5e_hv_vhca_fill_stats() are unchanged.
The max(max_nch, stats_nch) guard handles the rare case where
mlx5e_attach_netdev() recomputes max_nch downward across a
detach/resume cycle while priv->stats_nch persists (mlx5e_detach_netdev
does not call mlx5e_priv_cleanup, so stats_nch is only reset when
the netdev is destroyed). Without the guard, the worker could compute
buf_len from stats_nch and overrun the smaller buffer allocated based
on the reduced max_nch.
Allocating a non-zero buffer also makes the kvzalloc() failure path in
mlx5e_hv_vhca_stats_create() reachable for the first time: it returns
early without (re)creating the agent. Clear
priv->stats_agent.{agent,buf} in mlx5e_hv_vhca_stats_destroy() after
freeing them, so that if a later create() bails out on this path, a
subsequent teardown does not double-free the stale agent/buffer left
from a previous enable/disable cycle.
This mirrors the existing mlx5e pattern of preallocating arrays of
size max_nch (e.g. priv->channel_stats) and lazily populating
entries up to stats_nch on demand.
Fixes:
|
||
|
Paolo Abeni
|
88c4273ab4 |
Merge branch 'net-mlx5-lag-bug-fixes'
Tariq Toukan says: ==================== net/mlx5: LAG bug fixes Three bug fixes by Shay in the mlx5 LAG subsystem. Patch 1 fixes an off-by-one in the error rollback path of mlx5_lag_create_single_fdb_filter(): the loop started from the failed index i, potentially operating on uninitialized state or double-tearing-down an entry that had already self-rolled-back. The rollback should start from i - 1. Patch 2 fixes a hang in mlx5_mpesw_work(): when mlx5_lag_get_devcom_comp() returns NULL the function returned early without calling complete(), blocking any caller waiting on mpesww->comp indefinitely. Patch 3 fixes a kernel crash during teardown when mlx5_lag_get_dev_seq() returns an error because no device is marked as master or the peer is no longer in the LAG. The peer flow cleanup is now skipped instead of proceeding with a bad pointer. This series by Shay fixes three bugs in the mlx5 LAG subsystem. v1: https://lore.kernel.org/all/20260617063204.547427-2-tariqt@nvidia.com/ ==================== Link: https://patch.msgid.link/20260630112917.698313-1-tariqt@nvidia.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
Shay Drory
|
7bed4af0ce |
net/mlx5e: TC, skip peer flow cleanup when LAG seq is unavailable
mlx5_lag_get_dev_seq() will return error when the peer isn't in the LAG
or when no device is marked as master. Result bad memory access and kernel
crash[1].
Hence, skip the peer when lookup fails.
Note: In case there are peer flows, they are cleaned before LAG cleared
the master mark.
[1]
RIP: 0010:mlx5e_tc_del_fdb_peers_flow+0x3d/0x350 [mlx5_core]
Call Trace:
<TASK>
mlx5e_tc_clean_fdb_peer_flows+0xc1/0x130 [mlx5_core]
mlx5_esw_offloads_unpair+0x3a/0x400 [mlx5_core]
mlx5_esw_offloads_devcom_event+0xee/0x360 [mlx5_core]
mlx5_devcom_send_event+0x7a/0x140 [mlx5_core]
mlx5_esw_offloads_devcom_cleanup+0x2f/0x90 [mlx5_core]
mlx5e_tc_esw_cleanup+0x28/0xf0 [mlx5_core]
mlx5e_rep_tc_cleanup+0x19/0x30 [mlx5_core]
mlx5e_cleanup_uplink_rep_tx+0x36/0x40 [mlx5_core]
mlx5e_cleanup_rep_tx+0x55/0x60 [mlx5_core]
mlx5e_detach_netdev+0x96/0xf0 [mlx5_core]
mlx5e_netdev_change_profile+0x5b/0x120 [mlx5_core]
mlx5e_netdev_attach_nic_profile+0x1b/0x30 [mlx5_core]
mlx5e_vport_rep_unload+0xdd/0x110 [mlx5_core]
__esw_offloads_unload_rep+0x81/0xb0 [mlx5_core]
mlx5_eswitch_unregister_vport_reps+0x1d7/0x220 [mlx5_core]
mlx5e_rep_remove+0x22/0x30 [mlx5_core]
device_release_driver_internal+0x194/0x1f0
bus_remove_device+0xe8/0x1b0
device_del+0x159/0x3c0
mlx5_rescan_drivers_locked+0xbc/0x2d0 [mlx5_core]
mlx5_unregister_device+0x54/0x80 [mlx5_core]
mlx5_uninit_one+0x73/0x130 [mlx5_core]
remove_one+0x78/0xe0 [mlx5_core]
pci_device_remove+0x39/0xa0
Fixes:
|
||
|
Shay Drory
|
d4b85f9a66 |
net/mlx5: LAG, MPESW, Fix missing complete() on devcom error
mlx5_mpesw_work() returned without calling complete() when
mlx5_lag_get_devcom_comp() returned NULL. A caller that queued the
work and waited on mpesww->comp would block indefinitely.
Funnel the early-return path through a new "complete" label so the
waiter is always woken.
Fixes:
|
||
|
Shay Drory
|
0f0e4ae697 |
net/mlx5: LAG, Fix off-by-one in single-FDB error rollback
On failure at index i, the reverse cleanup loop in
mlx5_lag_create_single_fdb() starts from i, so the failed index
itself is rolled back. That can operate on uninitialized state or
double-tear-down a rule the add_one path already self-rolled-back.
Start the rollback from i - 1 so only successfully-installed entries
are undone.
Fixes:
|
||
Yousef Alhouseen
|
539dfcf691 |
mac802154: remove interfaces with RCU list deletion
Queue wake, stop, and disable paths walk local->interfaces under RCU.
The bulk hardware teardown path removes entries with list_del(), so an
asynchronous transmit completion can follow a poisoned list node in
ieee802154_wake_queue().
Use list_del_rcu() as in the single-interface removal path. The following
unregister_netdevice() waits for in-flight RCU readers before freeing the
netdevice, so no separate grace-period wait is needed.
Fixes:
|
||
|
Jamal Hadi Salim
|
6301f6a34e |
net/sched: sch_teql: move rcu_read_lock()/spin_lock() from _bh variants
This is a followup based on sashiko comments [1] on commit |
||
Wyatt Feng
|
1b47026fb4 |
netfilter: xt_connmark: reject invalid shift parameters
Revision 2 of the CONNMARK target accepts user-controlled shift
parameters and applies them to 32-bit mark values in
connmark_tg_shift().
A shift_bits value of 32 or more triggers an undefined-shift bug when
the rule is evaluated. Invalid shift_dir values are also accepted and
silently fall back to the left-shift path.
Reject invalid revision-2 shift parameters in connmark_tg_check() so
malformed rules fail at installation time, before they can reach the
packet path.
Fixes:
|
||
Yizhou Zhao
|
2975324d16 |
ipvs: reset full ip_vs_seq structs in ip_vs_conn_new
Commit |
||
|
Yizhou Zhao
|
6b335af0d0 |
ipvs: fix PMTU for GUE/GRE tunnel ICMP errors
When an ICMP Fragmentation Needed error is received for a tunneled IPVS
connection, ip_vs_in_icmp() recomputes the MTU that the original packet
can use by subtracting the tunnel overhead from the reported next-hop
MTU.
The current code always subtracts sizeof(struct iphdr), which is only
the IPIP overhead. For GUE and GRE tunnels, ipvs_udp_decap() and
ipvs_gre_decap() already compute the additional tunnel header length,
but that value is scoped to the decapsulation block and is lost before
the ICMP_FRAG_NEEDED handling. As a result, the ICMP error sent back to
the client advertises an MTU that is too large, so PMTUD can fail to
converge for GUE/GRE-tunneled real servers.
With a reported next-hop MTU of 1400, a GUE tunnel currently returns
1380 to the client. The correct value is 1368:
1400 - sizeof(struct iphdr) - sizeof(struct udphdr) -
sizeof(struct guehdr)
Hoist the tunnel header length into the main ip_vs_in_icmp() scope and
subtract sizeof(struct iphdr) + ulen in the Fragmentation Needed path.
The IPIP path keeps ulen as 0, so its existing 1400 - 20 = 1380 result
is unchanged.
Fixes:
|
||
Pablo Neira Ayuso
|
d63611cbe8 |
netfilter: nft_set_rbtree: get command skips end element with open interval
The get command on intervals provide partial matches such as subranges
for usability reasons. However, an open interval has no closing end
element. If the closing element matches within the range of the open
internal, ie. its closest match is the start element of the open range,
then, return 0 but offer no matching element to userspace through
netlink as a special case. Userspace provides at least a matching start
element in this case and the closing end element matching the open
interal is ignored.
Another possibility is to report the matching start element of the open
interval for this end interval. However, this results in duplicated
matching being listed in userspace because userspace does not expect a
start element as response to a end element.
Fixes:
|
||
Zhixing Chen
|
43ccc20b5a |
netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop
The ah, hbh and rt matches check that the fixed extension header is
present, then use the header length field to derive the advertised
extension header length for matching.
For the ah match, add the missing advertised-length check. For hbh
and rt, update the existing advertised-length checks. In all three
cases, set hotdrop to true before returning false when the advertised
extension header length exceeds the available skb data.
Returning false treats the packet as a rule mismatch. Set hotdrop to
true and drop malformed packets so they cannot bypass rules intended
to drop packets with these IPv6 extension headers.
Fixes:
|
||
|
Pablo Neira Ayuso
|
278296b69f |
netfilter: nfnetlink_cthelper: cap to maximum number of expectation per master on updates
Really cap it to NF_CT_EXPECT_MAX_CNT (255) on updates.
The commit ("netfilter: nfnetlink_cthelper: cap to maximum number of
expectation per master") only covers creation of helpers, not updates.
Fixes:
|
||
Feng Wu
|
444853cd43 |
netfilter: xt_rateest: fix u64 truncation in xt_rateest_mt()
On links faster than ~34 Gbps, where byte rate may exceed 2^32-1
(~ 4.3 GBps), the comparison result becomes incorrect because the
truncated value no longer reflects the actual estimator rate.
Fix by changing the local variables to u64.
Fixes:
|
||
|
Wyatt Feng
|
64cdf7d30a |
netfilter: xt_u32: reject invalid shift counts
u32_match_it() executes rule-supplied shift operands on a 32-bit
value. A malformed u32 rule can provide a shift count of 32 or more,
triggering an undefined shift out-of-bounds during packet evaluation.
Validate XT_U32_LEFTSH and XT_U32_RIGHTSH operands in
u32_mt_checkentry() and reject malformed rules before they reach the
packet path.
Fixes:
|
||
Florian Westphal
|
77e43bcb7e |
netfilter: nf_nat_sip: reload possible stale data pointer
quoting sashiko:
------------------------------------------------------------------------
[..] noticed a potential memory bug and header corruption involving the
SIP NAT helper.
In net/netfilter/nf_nat_sip.c:nf_nat_sip():
if (skb_ensure_writable(skb, skb->len)) {
nf_ct_helper_log(skb, ct, "cannot mangle packet");
return NF_DROP;
}
uh = (void *)skb->data + protoff;
uh->dest = ct_sip_info->forced_dport;
if (!nf_nat_mangle_udp_packet(skb, ct, ctinfo, protoff,
0, 0, NULL, 0)) {
If a cloned or fragmented SKB is reallocated by skb_ensure_writable(), the
old data buffer is freed. However, nf_nat_sip() fails to update *dptr to
point to the new buffer.
It also appears to use nf_nat_mangle_udp_packet() on what could be a TCP
packet, which would overwrite the sequence number with a checksum update.
------------------------------------------------------------------------
nf_conntrack_sip linerizes skbs, hence no fragmented skb can be seen.
But clones are possible, so rebuild dptr.
Disable nf_nat_mangle_udp_packet() branch for TCP streams.
It doesn't look like this can ever happen, else we should have received
bug reports about this, so just check the conntrack is UDP and drop
otherwise.
The calling conntrack_sip set ->forced_dport for SIP_HDR_VIA_UDP messages,
so I don't think this is ever expected to be true for a TCP stream.
Fixes:
|
||
Qihang
|
d335dcc6f5 |
gue: validate REMCSUM private option length
GUE private flags can indicate that remote checksum offload metadata is
present. The private flags field itself is accounted for by
guehdr_flags_len(), but guehdr_priv_flags_len() currently returns 0 even
when GUE_PFLAG_REMCSUM is set.
This lets a packet with only the private flags field pass
validate_gue_flags(), after which gue_remcsum() and gue_gro_remcsum()
read the missing REMCSUM start/offset fields from the following bytes.
Account for GUE_PLEN_REMCSUM when GUE_PFLAG_REMCSUM is present so that
malformed packets are rejected during option validation.
Fixes:
|
||
Dawei Feng
|
62e7df6d04 |
octeontx2-pf: fix SQB pointer leak on init failure
otx2_init_hw_resources() initializes SQ aura and pool resources before
several later setup steps. On failure, err_free_sq_ptrs only frees SQB
pages, leaving the per-SQ sqb_ptrs arrays behind.
Use otx2_free_sq_res() for the SQ unwind path and let it free sqb_ptrs
even when sq->sqe has not been allocated yet.
The bug was first flagged by an experimental analysis tool we are
developing for kernel memory-management bugs while analyzing
v6.13-rc1. The tool is still under development and is not yet publicly
available. Manual inspection confirms that the bug is still
present in v7.1.1.
An x86_64 allyesconfig build showed no new warnings. As we do not have an
OcteonTX2 PF device and the corresponding AF mailbox setup to test with,
no runtime testing was able to be performed.
Fixes:
|
||
|
Xiang Mei
|
03f384bc0c |
net: usb: net1080: validate packet_len before pad-byte access in rx_fixup
For an even packet_len, net1080_rx_fixup() reads the pad byte at
skb->data[packet_len] before the skb->len != packet_len check further
down, and packet_len is only bounded against NC_MAX_PACKET. A malicious
NetChip 1080 device can send a short frame advertising a large even
packet_len (e.g. 0x4000), so the pad-byte read lands past the end of the
skb:
BUG: KASAN: slab-out-of-bounds in net1080_rx_fixup
Read of size 1 at addr ffff8880106c83c6 by task ksoftirqd/0/14
...
net1080_rx_fixup (drivers/net/usb/net1080.c:384)
usbnet_bh (drivers/net/usb/usbnet.c:1589)
process_one_work (kernel/workqueue.c:3322)
bh_worker (kernel/workqueue.c:3708)
tasklet_action (kernel/softirq.c:965)
handle_softirqs (kernel/softirq.c:622)
...
Reject the frame when packet_len >= skb->len before reading.
Fixes:
|
||
Linus Torvalds
|
87320be9f0 |
Including fixes from netfilter and batman-adv.
Current release - new code bugs:
- netfilter: cthelper: cap to maximum number of expectation per master
Previous releases - regressions:
- netpoll: fix a use-after-free on shutdown path
- tcp: restore RCU grace period in tcp_ao_destroy_sock
- ipv6: fix NULL deref in fib6_walk_continiue() on multi-batch dump
- batman-adv: dat: ensure accessible eth_hdr proto field
- eth: virtio_net: disable cb when NAPI is busy-polled
- eth: lan743x: Initialize eth_syslock spinlock before use
Previous releases - always broken:
- netfilter:
- nft_set_pipapo: don't leak bad clone into future transaction
- sched:
- sch_teql: Introduce slaves_lock to avoid race condition and UAF
- replace direct dequeue call with peek and qdisc_dequeue_peeked
- sctp: add INIT verification after cookie unpacking
- tipc: fix out-of-bounds read in broadcast Gap ACK blocks
- seg6: validate SRH length before reading fixed fields
- eth: mlx5e: fix use-after-free of metadata_dst on RX SC delete
- eth: enetc: check the number of BDs needed for xdp_frame
- eth: fbnic: don't cache shinfo across skb realloc
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-----BEGIN PGP SIGNATURE-----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=E5mR
-----END PGP SIGNATURE-----
Merge tag 'net-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfilter and batman-adv.
Current release - new code bugs:
- netfilter: cthelper: cap to maximum number of expectation per master
Previous releases - regressions:
- netpoll: fix a use-after-free on shutdown path
- tcp: restore RCU grace period in tcp_ao_destroy_sock
- ipv6: fix NULL deref in fib6_walk_continiue() on multi-batch dump
- batman-adv: dat: ensure accessible eth_hdr proto field
- eth:
- virtio_net: disable cb when NAPI is busy-polled
- lan743x: Initialize eth_syslock spinlock before use
Previous releases - always broken:
- netfilter:
- nft_set_pipapo: don't leak bad clone into future transaction
- sched:
- sch_teql: Introduce slaves_lock to avoid race condition and UAF
- replace direct dequeue call with peek and qdisc_dequeue_peeked
- sctp: add INIT verification after cookie unpacking
- tipc: fix out-of-bounds read in broadcast Gap ACK blocks
- seg6: validate SRH length before reading fixed fields
- eth:
- mlx5e: fix use-after-free of metadata_dst on RX SC delete
- enetc: check the number of BDs needed for xdp_frame
- fbnic: don't cache shinfo across skb realloc"
* tag 'net-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (58 commits)
net/mlx5: HWS, fix matcher leak on resize target setup failure
net/sched: hhf: clear heavy-hitter state on reset
net/sched: dualpi2: clear stale classification on filter miss
net/sched: act_bpf: use rcu_dereference_bh() to read the filter
selftests: drv-net: tso: don't touch dangerous feature bits
cxgb4: Fix decode strings dump for T6 adapters
virtio_net: disable cb when NAPI is busy-polled
sctp: fix addr_wq_timer race in sctp_free_addr_wq()
selftests: net: bump default cmd() timeout to 20 seconds
bridge: stp: Fix a potential use-after-free when deleting a bridge
net/sched: sch_teql: Introduce slaves_lock to avoid race condition and UAF
net: gianfar: dispose irq mappings on probe failure and device removal
net: lan743x: Initialize eth_syslock spinlock before use
net: libwx: fix VMDQ mask for 1-queue mode
net: airoha: fix max receive size configuration
fsl/fman: Free init resources on KeyGen failure in fman_init()
netfilter: nftables: restrict checkum update offset
netfilter: nftables: restrict linklayer and network header writes
netfilter: nfnetlink_queue: restrict writes to network header
netfilter: nft_fib: reject fib expression on the netdev egress hook
...
|
||
|
Linus Torvalds
|
a9d4dd7424 |
hwmon fixes for v7.2-rc2
- adm1275: Detect coefficient overflow, and prevent reading uninitialized stack - aspeed-g6-pwm-tach: Guard fan RPM calculation against divide-by-zero - asus_atk0110: Check package count before accessing element - ltc4283: fix malformed table docs build error - occ: Unregister sysfs devices outside occ lock to avoid lockdep warning - pmbus core: Fix passing events to regulator core, and honor vrm_version in pmbus_data2reg_vid() - w83627hf: Remove VID sysfs files on error and remove - w83793: remove vrm sysfs file on probe failure - Various: Add missing 'select REGMAP_I2C' to Kconfig -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiHPvMQj9QTOCiqgVyx8mb86fmYEFAmpGaa0ACgkQyx8mb86f mYGZAw/+JjAS7LyUalHftEL2FCoK+yrTHBE86JZxcf+WDLh52+WSjAeAjbAwmeSv 2o6lWRPt0BaHSS0dTT5JZ7tCRn8swIdoCUQys8AFDTMNIaLnrgiS3qJLm0WP1I1U dLzC2L8DWajeWtyvFPJT0H7Bq7AX/hOpCwJICMu9bPCP1FwafrUgkRCqmWAb2AS9 vmLrmqGphehRbB47qw0yuoDb1rttCWfWIYqyVyBzy4uJP5XtdJt9+DyQXysP3vCD 8lAIVxLr8eSSYPjvL15mD7VT5JJwYpiN2VaI/ZwqPpAochvT4BvwirTVzUFe0OF8 ZxlHX0zQG0EW2SU5hxQ1VlqFi38u4M5qlmf+FSWJyPaxde5PFFtrl6SONy5Dflvi IDVPFTm2MS3FWjzGYSswUcAshqI+AtQIhi/9QsO4kME8SSLRdnvTBneGpnVpZHQe V2RlnnnhwS2OJK+1yIe7lDyFN7alE+mREB8RnOHlr/yLX8fM3LzzhtnmSKpqo0Aq bTYsm+lwd3sefAuxmcrKJ5YLbv41clNQzoMMuhglKqF/HS1eX+WABOE8MVVfGL/V CBjFNBw9iIY7H9jTBR+3OMx1tanmUyf4dga/vggzXOhMVRGwUNkaIe+zS/d6iaTr GujoVJBXjd0RCHUxxYuvRa+CUkbuUARRUMOrSlYTFQkzaooTlAE= =wyCy -----END PGP SIGNATURE----- Merge tag 'hwmon-for-v7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon fixes from Guenter Roeck: - adm1275: Detect coefficient overflow, and prevent reading uninitialized stack - aspeed-g6-pwm-tach: Guard fan RPM calculation against divide-by-zero - asus_atk0110: Check package count before accessing element - ltc4283: fix malformed table docs build error - occ: Unregister sysfs devices outside occ lock to avoid lockdep warning - pmbus core: Fix passing events to regulator core, and honor vrm_version in pmbus_data2reg_vid() - w83627hf: Remove VID sysfs files on error and remove - w83793: remove vrm sysfs file on probe failure - Various: Add missing 'select REGMAP_I2C' to Kconfig * tag 'hwmon-for-v7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (aspeed-g6-pwm-tach) Guard fan RPM calculation against divide-by-zero hwmon: (pmbus) Fix passing events to regulator core hwmon: adm1275: Detect coefficient overflow hwmon: adm1275: Prevent reading uninitialized stack hwmon: (max6697) add missing 'select REGMAP_I2C' to Kconfig hwmon: (ltc2992) add missing 'select REGMAP_I2C' to Kconfig hwmon: (max1619) add missing 'select REGMAP' to Kconfig hwmon: (w83627hf) remove VID sysfs files on error and remove hwmon: (w83793) remove vrm sysfs file on probe failure hwmon: (asus_atk0110) Check package count before accessing element docs: hwmon: ltc4283: fix malformed table docs build error hwmon: (pmbus/core) honor vrm_version in pmbus_data2reg_vid() hwmon: (occ) unregister sysfs devices outside occ lock |
||
|
Linus Torvalds
|
db78c0db41 |
MFD fixes for v7.2
* Add MFD mailing list to MAINTAINERS -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEdrbJNaO+IJqU8IdIUa+KL4f8d2EFAmpGHP4ACgkQUa+KL4f8 d2GUDQ/9EpPARKhXP0Ky27Nj6S6epKhh+W4aPC8/VEo0T43Fm2B4DTxeYpJK7k5o +GwP0HVcjW+94dUMj8ZEzpI1PAD/38aKLLIFaqEdbFREe6QtlyOgligR20cgWZZO IM/MKD8AwjpbUT7YPQIr6ItBBYYHhvc3gFUC7Lr1xIGU1rFQa3Bpx2zXD9sulYQk uXpls+kuhFBBsJ6nVeofC8iIpKKIjwj4iazRm65uSqjtH0veUEbeidzyqXL4fiIc mnWOJny6WnLbYJRHKMui4TvBg+qyy0cWsoOJgVuQslhb9VAmfYNtrncqGckkKcMd O6u0eOhWFbQzJdu/j2f0hjBTUgUEPrnQidmP7jMpTTCtK0x1wp7BsfUzf46DflkO TRpZuqByyd3dEUTBqRCEF8nsYQWq/P65/PKTWg//N03673JWrXTbEq7jCZ78YHAB hWNPs232qGfyvGV2lV8VSA9ypZkk0QUMfVCyNfJ0D8G/nVysQBXXbJWl59b08be4 DyYuaZhqYC5u8CgmeY86vBeu5jFEC1K/mIIj2TCtakFTB6YbQZCVfNemhdVDx3sx 0Ld/j85qOoliPHns9W+82ehic8uCDqxmlxT0zfwqsT6xPwrEo27KgjeAkKuEBJZW ayQtTphsmdL0JC+B+Fb3nyn7X5EifzItV7Yf96UinswA3t4MaB8= =9mYD -----END PGP SIGNATURE----- Merge tag 'mfd-fixes-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD fix from Lee Jones: - Add MFD mailing list to MAINTAINERS * tag 'mfd-fixes-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: MAINTAINERS: Add a mailing list entry to MFD |
||
|
Paolo Abeni
|
d8e8b85a85 |
Here are some batman-adv bugfix, all by Sven Eckelmann:
- fix pointers after potential skb reallocs (5 patches) - dat: ensure accessible eth_hdr proto field -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEE1ilQI7G+y+fdhnrfoSvjmEKSnqEFAmpDx/EWHHN3QHNpbW9u d3VuZGVybGljaC5kZQAKCRChK+OYQpKeoU+PD/92qWug2F0Y9KxXsdU27WUK6Y+M NzVADiZhcOe0DjCd2D+3ihHcH053a8KnUlBO7YM/1AKeyhOJX4DKfGu65b3/r7mv 1GR2mhJM7gUF6OeUmOOeW5uHFGiywgUcnNxCprJtCnmxaVaDp5u2EplLklc4dOWj OX7ULJW55PsVS6VM0cXzOylUhebWa4esqqTG0kmO3nFkUYQrqGTvCxUFznijzBBN CiKxTli2U758VSeFcp6Yl4Jf94I+Zw5EnAEKftkPdtnOe390CCAPlUf1bRR27Wqv YWXxt2oMWKpzYwZrKYBWsZ29XCTNgxxcNWXsb6DEckSPWf0A168LfomcPwdjQrVC uGF1E8j8Rbpys8Xm2USFZF4gcRjl56N6Iig7nK5pYZH/NJ0xqIdXTPz5x5AIRTNB p6OaY58Mq/3f0sCUQzsuBXkOKaIwbiprMadF5VY1v6SrT/NNJmHYJ2Bvd5CTr7G6 hJA5VROZ4W6Tuk+tn+jxHMG7WeajcEKo7zZNFC46eeIuEjeNCuCQ2aQELwVngnHe lBkR4Nq9GeCXb5OKC3lXyYDVBt87ktkRYGgPI+pXJFexHlIJ7kwQfoNCHkYH0umF L+7/R1+2VxsT91c7eKRWsvFyeED2i8KqxQdWLu/RfzmPzp5GlaOhq9U/KpDz+7Hj gLTEZkplVRmgB3pzhA== =H0KB -----END PGP SIGNATURE----- Merge tag 'batadv-net-pullrequest-20260630' of https://git.open-mesh.org/batadv Simon Wunderlich says: ==================== Here are some batman-adv bugfix, all by Sven Eckelmann: - fix pointers after potential skb reallocs (5 patches) - dat: ensure accessible eth_hdr proto field * tag 'batadv-net-pullrequest-20260630' of https://git.open-mesh.org/batadv: batman-adv: dat: ensure accessible eth_hdr proto field batman-adv: bla: reacquire gw address after skb realloc batman-adv: dat: acquire ARP hw source only after skb realloc batman-adv: gw: acquire ethernet header only after skb realloc batman-adv: access unicast_ttvn skb->data only after skb realloc batman-adv: retrieve ethhdr after potential skb realloc on RX ==================== Link: https://patch.msgid.link/20260630134430.85786-1-sw@simonwunderlich.de Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
Lee Jones
|
d5d2d7a8d8 |
MAINTAINERS: Add a mailing list entry to MFD
This is to be included by all contributors and will be leaned on for Sashiko's "reply to author" support. Signed-off-by: Lee Jones <lee@kernel.org> |
||
|
Dawei Feng
|
bb09d0e64e |
net/mlx5: HWS, fix matcher leak on resize target setup failure
hws_bwc_matcher_move() allocates a replacement matcher before setting it
as the resize target. If mlx5hws_matcher_resize_set_target() fails, the
replacement matcher is not attached anywhere and is leaked.
Fix the leak by destroying the replacement matcher before returning from
the resize-target failure path.
The bug was first flagged by an experimental analysis tool we are
developing for kernel memory-management bugs while analyzing
v6.13-rc1. The tool is still under development and is not yet publicly
available. Manual inspection confirms that the bug is still
present in v7.1.1.
An x86_64 allyesconfig build showed no new warnings. As we do not have a
mlx5 HWS-capable device to test with, no runtime testing was able to be
performed.
Fixes:
|
||
|
Linus Torvalds
|
4a50a141f0 |
Bootconfig fixes for v7.2-rc1:
- bootconfig: Fix NULL-pointer arithmetic Fix undefined pointer arithmetic in xbc_snprint_cmdline() when probing the buffer length with NULL and size 0. Track the written length as a size_t instead to prevent build-time UBSan/FORTIFY_SOURCE failures. -----BEGIN PGP SIGNATURE----- iQFPBAABCgA5FiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmpEY1sbHG1hc2FtaS5o aXJhbWF0c3VAZ21haWwuY29tAAoJENv7B78FKz8bxAgH/A+wNARuaA8k3qHdRrzm eoKNfwPNc2C+QwPMsYVgk0aa1HaZWwuJ7FJQn0P0z3uXO6uvDg5S3q2LTyyLyoTy 3DFcyrAQ1eIk5tj88LTmLHq5a6Jntsl+OZMXy3gU8fVJV8sQFYt1fovHctn0oaY3 Yw5iwGkVzwFMh4BwZn9RfH73zECeUticJeO4qQadRApMsrWgNDz7f+P8YzcUxbBx BLBE4hnfKA5awRoYaOqGQ5jHsPoyj5GwwDEt+KU412M/E85rQAfGDyw5RXwqnb91 rs7w6EJ8nfEGWDpqJTpZQxZbpvNc88cnh08lnxyFKGWiOBvV7G/qRNXG4AmI2e// oh4= =t5+P -----END PGP SIGNATURE----- Merge tag 'bootconfig-fixes-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull bootconfig fix from Masami Hiramatsu: - bootconfig: Fix NULL-pointer arithmetic Fix undefined pointer arithmetic in xbc_snprint_cmdline() when probing the buffer length with NULL and size 0. Track the written length as a size_t instead to prevent build-time UBSan/FORTIFY_SOURCE failures. * tag 'bootconfig-fixes-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: bootconfig: fix NULL-pointer arithmetic in xbc_snprint_cmdline() |
||
|
Paolo Abeni
|
0469d460a5 |
netfilter pull request nf-26-06-30
-----BEGIN PGP SIGNATURE----- iQJdBAABCABHFiEEgKkgxbID4Gn1hq6fcJGo2a1f9gAFAmpDSiUbFIAAAAAABAAO bWFudTIsMi41KzEuMTIsMiwyDRxmd0BzdHJsZW4uZGUACgkQcJGo2a1f9gCQqQ/9 GsYgG2MRq5oJ+fcc4vahA1/m/l+ZCwIYOZQ9jkle/OHoNZJ9vfjFs2EcW2nSZeNB yEHUx6AloGvGWJF+rFj23OaYu00qBYyaKqWYFbil9AhseI4Fq5U2UrRQxQosTZ7m YqnddG9Mrit4VdsZyy3TdA1qGELlCzO1vm4HlXF3cBH0bYNr1TIAYXo0XDXn5mZM l9uU3k5WAKt0wnoQcrmyBZ6aOjaKdYQ0WqkBmCmXSTL+qoSf1kh6Dq2qeIUjPjQN cw4JalBNZF4ezJQmQLaeTtSndAtQCQuyANNBSFD38L67aW0eseamSUoPN9mWXoWL yCWc1m7QbpZcrZEKzKCHlIcuZszxKHZNpCCkLYbvzKaucPzAvawbnHJ6v6t69FSf mqyyYjhJyw8e7XGQA8GCktXYWZab1Bh0+V83yd3HwkicBybgNFjdEyzC/LVol/wz 5pWcEFQKoPsJtRGG5mtDhXU1Rw8Y4MYVACGlSVrSdd3AOCC20qIp6NppmTA+UPtc F0q3tSQhcJ7DheAIVHYaPjbr5k4fOEBD3fKggEdMwLune1vZaagXw0MWxbaZ5HxQ zvNpxHgljNLdIZ7+igRBqWluO8cX9jRpzDYPwPtboND+UPFC6UyecOhZz7KFq8B+ RYy8JyDr0kFvI+mc0vZUJAersBn5NHDFdA7IbzHhlos= =cwEO -----END PGP SIGNATURE----- Merge tag 'nf-26-06-30' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf Florian Westphal says: ==================== netfilter: updates for net The following patchset contains Netfilter fixes for *net*. Due to bug volume the plan is to make a second *net* pull request this Friday. 1) Zero nf_conntrack_expect at allocation to prevent uninitialized data leaks to userspace. Add missing exp->dir initialization. 2) Prevent out-of-bounds writes in nft_set_pipapo caused by inconsistent clones during allocation failures. Fail operations if the clone enters an error state. This was a day-0 bug. 3) Fix use-after-free race between ipset dump and array resizing. Protect array pointer access with rcu_read_lock(). From Xiang Mei. Bug existed since v4.20. 4) Validate skb_dst() exists before access in nf_conntrack_sip. This Prevent crash when called from tc ingress or openvswitch. From Pablo Neira Ayuso. Bug added in 4.3 when ovs gained support for conntrack helpers. 5) Cap the maximum number of expectations to NF_CT_EXPECT_MAX_CNT during userspace helper policy updates. Also from Pablo. 6) Prevent NULL pointer dereference in nft_fib on netdev egress hooks. Add nft_fib_netdev_validate() to restrict fib expressions to appropriate netdev hooks. Restrict nft_fib_validate() to IPv4, IPv6, and INET protocols. From Theodor Arsenij Larionov-Trichkine. Bug was exposed in v5.16 when egress hooks got added. 7) Restrict nfnetlink_queue writes to network headers. Validate IP/IPv6 header length and disable extension headers or IP option modifications. Disable bridge modification for now, its unlikely anyone is using this. 8) Restrict arbitrary writes to link-layer and network headers in nftables. Prevent link-layer modifications from spilling into network headers. Prevent writes to IP version and length fields. 9) Restrict L3 checksum update offset to IPv4. Else csum offset can be used to munge arbitrary header offsets, rendering the previous change moot. These three patches are follow-ups to a 7.1 change that disabled header rewrite ability in unprivileged network namespaces. unprivileged netns support is not yet enabled again here. netfilter pull request nf-26-06-30 * tag 'nf-26-06-30' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf: netfilter: nftables: restrict checkum update offset netfilter: nftables: restrict linklayer and network header writes netfilter: nfnetlink_queue: restrict writes to network header netfilter: nft_fib: reject fib expression on the netdev egress hook netfilter: nfnetlink_cthelper: cap to maximum number of expectation per master netfilter: nf_conntrack_sip: validate skb_dst() before accessing it netfilter: ipset: fix race between dump and ip_set_list resize netfilter: nft_set_pipapo: don't leak bad clone into future transaction netfilter: nf_conntrack_expect: zero at allocation time ==================== Link: https://patch.msgid.link/20260630045243.2657-1-fw@strlen.de Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
Samuel Moelius
|
a225f8c207 |
net/sched: hhf: clear heavy-hitter state on reset
HHF reset does not clear the classifier state used to identify heavy
hitters. Packets after reset can therefore be scheduled using flow
history from before the reset.
The reset operation should return the qdisc to an empty state.
Clear the heavy-hitter classifier tables when HHF is reset.
Fixes:
|
||
|
Samuel Moelius
|
bf83ee4587 |
net/sched: dualpi2: clear stale classification on filter miss
DualPI2 leaves previous classification state attached to an skb when
filter classification returns no match. The enqueue path can then act
on stale state from an earlier classification attempt.
A filter miss should fall back to the default class without reusing old
per-packet classification data.
Initialize the classification result to CLASSIC before running the
classifier. Explicit L4S, priority, and successful filter
classification can still override that default.
Fixes:
|
||
|
Linus Torvalds
|
665159e246 |
Probes fixes for v7.2-rc1:
- fprobe: Fix stability and spelling typos
. Fix NULL pointer dereference in fprobe_fgraph_entry(): Prevent general
protection faults by checking shadow-stack reservation bounds. Skip
mid-flight registered fprobes that were not counted during sizing.
- eprobe: Fix string pointer extraction
. Correct the casting of string pointers read from the ringbuffer to
prevent truncation of base event pointer variables when dereferencing
FILTER_PTR_STRING fields.
- tracing/probes: Clean up argument parsing and BTF helper logic
. Make the $ prefix mandatory for comm access: Require the $ prefix for
special fetcharg variables like $comm and $COMM, preventing naming
conflicts with regular BTF-based event fields.
. Fix double addition of offset for @+FOFFSET: Clear the temporary offset
variable after setting the FETCH_OP_FOFFS instruction to avoid applying
the offset multiple times.
. Remove WARN_ON_ONCE from parse_btf_arg: Prevent triggering a kernel warning
via user-space input when creating a kprobe event on a raw address.
. Fix typo in a log message: Correct a spelling error ("$-valiable") in
trace probe log messages.
- samples/trace_events: Improve error checking
. Validate the thread pointer returned from kthread_run() in the trace
events sample code to properly handle thread creation failures.
-----BEGIN PGP SIGNATURE-----
iQFPBAABCgA5FiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmpD3BEbHG1hc2FtaS5o
aXJhbWF0c3VAZ21haWwuY29tAAoJENv7B78FKz8beGkIAMbMZ7zoCIlKEfZaRIHS
ms2BTUfh5mkyoIJ+dWXel9UmsvL2kj4FzKWt+gYKsYuxqu3o62BGIkaNffXJEKnc
qRvgVxsxOeJqXjmnSDjVhukBDGb8X1SaRd4DZMuEO77d2nYztYO61ejkF94S6WaQ
VE46pFu0FWGZvFGyyfrCEYFIkFF+4scsDB4ncHLR8u5tNqzg7NaUdvK+tc88/Exk
k7+qqo8aCwMjd8wkfsyCH6DvQmmN5sKcCEvOL8zzE6D4xfX9kRd0//FBZPDmGUC4
lQ2jNhMYhdLdOP+I7dIi+FBaY0Lye8mwHrnrqI2DSvYO4cb4LQvn2hexKLbN2dZE
dt8=
=3Y70
-----END PGP SIGNATURE-----
Merge tag 'probes-fixes-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes fixes from Masami Hiramatsu:
"fprobe fixes and spelling typos:
- Fix NULL pointer dereference in fprobe_fgraph_entry(). Prevent
general protection faults by checking shadow-stack reservation
bounds. Skip mid-flight registered fprobes that were not counted
during sizing.
eprobe: fix string pointer extraction
- Correct the casting of string pointers read from the ringbuffer to
prevent truncation of base event pointer variables when
dereferencing FILTER_PTR_STRING fields.
tracing/probes: clean up argument parsing and BTF helper logic
- Make the $ prefix mandatory for comm access: Require the $ prefix
for special fetcharg variables like $comm and $COMM, preventing
naming conflicts with regular BTF-based event fields.
- Fix double addition of offset for @+FOFFSET: Clear the temporary
offset variable after setting the FETCH_OP_FOFFS instruction to
avoid applying the offset multiple times.
- Remove WARN_ON_ONCE from parse_btf_arg: Prevent triggering a kernel
warning via user-space input when creating a kprobe event on a raw
address.
- Fix typo in a log message: Correct a spelling error ("$-valiable")
in trace probe log messages.
samples/trace_events: improve error checking
- Validate the thread pointer returned from kthread_run() in the
trace events sample code to properly handle thread creation
failures"
* tag 'probes-fixes-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing/probes: Make the $ prefix mandatory for comm access
tracing/fprobe: Fix NULL pointer dereference in fprobe_fgraph_entry()
tracing/probes: Fix double addition of offset for @+FOFFSET
tracing: eprobe: read the complete FILTER_PTR_STRING pointer
tracing/events: Fix to check the simple_tsk_fn creation
tracing/probes: Remove WARN_ON_ONCE from parse_btf_arg
tracing: probes: fix typo in a log message
|
||
Sechang Lim
|
adc49c7ba6 |
net/sched: act_bpf: use rcu_dereference_bh() to read the filter
tcf_bpf_act() can run from the tc egress path, which holds only
rcu_read_lock_bh(), but reads prog->filter with rcu_dereference() and
trips lockdep:
WARNING: suspicious RCU usage
net/sched/act_bpf.c:47 suspicious rcu_dereference_check() usage!
1 lock held by syz.2.1588/12756:
#0: (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit net/core/dev.c:4792
tcf_bpf_act+0x6ae/0x940 net/sched/act_bpf.c:47
tcf_classify+0x6e4/0x1080 net/sched/cls_api.c:1860
sch_handle_egress net/core/dev.c:4545 [inline]
__dev_queue_xmit+0x2185/0x2c00 net/core/dev.c:4808
packet_sendmsg+0x3dfa/0x5120 net/packet/af_packet.c:3114
The other tc actions and cls_bpf already use rcu_dereference_bh() here.
Do the same.
Fixes:
|
||
Jakub Kicinski
|
2f7f2e3111 |
selftests: drv-net: tso: don't touch dangerous feature bits
query_nic_features() detects which offloads depend on tx-gso-partial
by enabling everything, turning tx-gso-partial off, and seeing which
active features drop out. Enabling all hw features is dangerous:
we may end up enabling rx-fcs and loopback for example. For the
ice driver we end up getting into problems with feature dependencies
so the cleanup isn't successful either, and the test exits with
rx-fcs and loopback enabled.
Scope the feature probing just to segmentation bits.
Fixes:
|
||
Gleb Markov
|
5d6dc22d62 |
cxgb4: Fix decode strings dump for T6 adapters
Depending on the value of chip_version, the correct decode set is selected.
However, the subsequent matching with the t4 encoding type in the if-else
block results in a reassignment, which leads to the loss of support for
t6_decode as well as reinitializing of values t4_decode and t5_decode.
The component history shows that the if-else block previously used for
this purpose, as well as the execution order, was not affected by the
change.
Furthermore, it is suggested by the execution order that the scenario with
overwriting and loss of support will be implemented.
Delete the if-else block.
Fixes:
|
||
Longjun Tang
|
1eb8fc67ca |
virtio_net: disable cb when NAPI is busy-polled
When busy-poll is active, napi_schedule_prep() returns false in
virtqueue_napi_schedule(), so virtqueue_disable_cb() is skipped.
The device may keep firing irqs until reaches virtqueue_napi_complete().
Under load (received == budget), it will lead to a large number
of spurious interrupts.
Fix it by disabling the callback at the virtnet_poll() entry.
This keeps the callback off while we poll and it is re-enabled by
virtqueue_napi_complete() when going idle.
Fixes:
|