This sysctl is going to be used in the next commits to drop TCP
timestamps option, to be able to send an ADD_ADDR with a v6 IP address
and a port number. It is enabled by default.
This knob is explicitly disabled in the MPTCP Join selftest, with the
"signal addr list progresses after tx drop" subtest, to continue
verifying the previous behaviour where the ADD_ADDR is not sent due to a
lack of space.
While at it, move syn_retrans_before_tcp_fallback down from struct
mptcp_pernet, to avoid creating another 3 bytes hole.
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260605-net-next-mptcp-add-addr6-port-ts-v2-4-758e7ca73f4d@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Cross-merge networking fixes after downstream PR (net-7.1-rc8).
Conflicts:
drivers/net/ethernet/wangxun/txgbe/txgbe_aml.c
f67aead16e ("net: txgbe: rework service event handling")
57d39faed4 ("net: txgbe: improve functions of AML 40G devices")
net/rds/info.c
512db8267b ("rds: mark snapshot pages dirty in rds_info_getsockopt()")
6e94eeb2a2 ("rds: convert to getsockopt_iter")
Adjacent changes:
include/net/sock.h
1ee90b77b7 ("net: guard timestamp cmsgs to real error queue skbs")
f0de88303d ("net: make is_skb_wmem() available to modules")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add a kselftest that exercises the RDS getsockopt() paths converted to
the getsockopt_iter() / sockopt_t callback:
- RDS_RECVERR and SO_RDS_TRANSPORT, which return their int value through
copy_to_iter() and report the written length in opt->optlen.
- RDS_INFO_*, which obtains the userspace buffer pages with
iov_iter_extract_pages() (including a non-zero starting page offset)
and lets the info producers copy the snapshot in under a spinlock.
Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260608-getsock_more-v3-1-706ecf2ea332@debian.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This test needs more work, and it fails in non-obvious way
when IPv4 connectivity is not available:
# Exception| CMD[remote]: /tmp/vjquwblf/gukinuzqso_txtime -4 -c mono -t 1780939014114542914 -S None -D None a,0 -r
# Exception| EXIT: -15
Explicitly check for IPv4 support to make the future triage
less painful.
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20260609180803.1093428-3-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The test seems to be written with a single-host loopback
in mind. We need to deploy the binary to remote before
we run it. This is just fixing an obvious issue, but
more work will be needed to make the dual-host setup
work reliably. Most of the runs still fail with:
FAIL: start time already passed
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20260609180803.1093428-2-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
When an 802.3ad (LACP) bonding interface has no slaves in the
collecting/distributing state, the bonding master still reports
carrier as up as long as at least 'min_links' slaves have carrier.
In this situation, only one slave is effectively used for TX/RX,
while traffic received on other slaves is dropped. Upper-layer
daemons therefore consider the interface operational, even though
traffic may be blackholed if the lack of LACP negotiation means
the partner is not ready to deal with traffic.
Introduce a configuration knob to control this behavior. It allows
the bonding master to assert carrier only when at least 'min_links'
slaves are in Collecting_Distributing state.
The default mode preserves the existing behavior. This patch only
introduces the knob; its behavior is implemented in the subsequent
commit.
Fixes: 655f8919d5 ("bonding: add min links parameter to 802.3ad")
Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
Acked-by: Jay Vosburgh <jv@jvosburgh.net>
Link: https://patch.msgid.link/20260603150331.1919611-4-louis.scalbert@6wind.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Fix the implementation of the CFI branch landing pad control
prctl()s to return -EINVAL if unknown control bits are set, rather
than silently ignoring the request; and add a kselftest for this
case
- Fix unaligned access performance testing to happen earlier in boot,
which fixes a performance regression in the lib/checksum code
- Fix a binfmt_elf warning when dumping core (due to missing
.core_note_name for CFI registers)
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Merge tag 'riscv-for-linux-7.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
- Fix the implementation of the CFI branch landing pad control prctl()s
to return -EINVAL if unknown control bits are set, rather than
silently ignoring the request; and add a kselftest for this case
- Fix unaligned access performance testing to happen earlier in boot,
which fixes a performance regression in the lib/checksum code
- Fix a binfmt_elf warning when dumping core (due to missing
.core_note_name for CFI registers)
* tag 'riscv-for-linux-7.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: cfi: reject unknown flags in PR_SET_CFI
riscv: Fix fast_unaligned_access_speed_key not getting initialized
riscv/ptrace: Use USER_REGSET_NOTE_TYPE for REGSET_CFI
The generated binary for getsockopt_iter.c shouldn't show up as an
untracked git file after running:
make -C tools/testing/selftests TARGETS=net install
Let's just ignore it.
Fixes: d39887f55d ("net: selftests: add getsockopt_iter regression tests")
Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Link: https://patch.msgid.link/20260608112259.4022-1-fmancera@suse.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Fix reset ordering on per-task destruction
Reset the task before dropping the slot instead of after, which was
causing out-of-bound memory accesses.
- Fix HA monitor synchronization and cleanup
Ensure synchronous cleanup for HA monitors by running timer callbacks
in RCU read-side critical sections and using synchronize_rcu() during
destruction.
- Avoid armed timers after tasks exit
Add automatic cleanup for per-task HA monitors to prevent timers from
firing after task exit.
- Fix memory ordering for DA/HA monitors
Fix race conditions during monitor start by using release-acquire
semantics for the monitoring flag.
- Fix initialization for DA/HA monitors
Ensure monitors are not initialized relying on potentially corrupted
state like the monitoring flag, that is not reset by all monitors type
and may have an unknown state in monitors reusing the storage
(per-task).
- Fix memory safety in per-task and per-object monitors
Prevent use-after-free and out-of-bounds access by synchronizing with
in-flight tracepoint probes using tracepoint_synchronize_unregister()
before freeing monitor storage or releasing task slots.
- Adjust monitors for preemptible tracepoints
Fix monitors that relied on tracepoints disabling preemption.
Explicitly disable task migration when per-CPU monitors handle events
to avoid accessing the wrong state and update the opid monitor logic.
- Fix incorrect __user specifier usage
Remove __user from a non-pointer variable in the extract_params()
helper.
- Fix bugs in the rv tool
Ensure strings are NUL-terminated, fix substring matching in monitor
searches, and improve cleanup and exit status handling.
- Fix several bugs in rvgen
Fix LTL literal stringification, subparsers' options handling, and
suffix stripping in dot2k.
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Merge tag 'trace-rv-v7.1-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull runtime verifier fixes from Steven Rostedt:
- Fix reset ordering on per-task destruction
Reset the task before dropping the slot instead of after, which was
causing out-of-bound memory accesses.
- Fix HA monitor synchronization and cleanup
Ensure synchronous cleanup for HA monitors by running timer callbacks
in RCU read-side critical sections and using synchronize_rcu() during
destruction.
- Avoid armed timers after tasks exit
Add automatic cleanup for per-task HA monitors to prevent timers from
firing after task exit.
- Fix memory ordering for DA/HA monitors
Fix race conditions during monitor start by using release-acquire
semantics for the monitoring flag.
- Fix initialization for DA/HA monitors
Ensure monitors are not initialized relying on potentially corrupted
state like the monitoring flag, that is not reset by all monitors
type and may have an unknown state in monitors reusing the storage
(per-task).
- Fix memory safety in per-task and per-object monitors
Prevent use-after-free and out-of-bounds access by synchronizing with
in-flight tracepoint probes using tracepoint_synchronize_unregister()
before freeing monitor storage or releasing task slots.
- Adjust monitors for preemptible tracepoints
Fix monitors that relied on tracepoints disabling preemption.
Explicitly disable task migration when per-CPU monitors handle events
to avoid accessing the wrong state and update the opid monitor logic.
- Fix incorrect __user specifier usage
Remove __user from a non-pointer variable in the extract_params()
helper.
- Fix bugs in the rv tool
Ensure strings are NUL-terminated, fix substring matching in monitor
searches, and improve cleanup and exit status handling.
- Fix several bugs in rvgen
Fix LTL literal stringification, subparsers' options handling, and
suffix stripping in dot2k.
* tag 'trace-rv-v7.1-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
verification/rvgen: Fix ltl2k writing True as a literal
verification/rvgen: Fix options shared among commands
verification/rvgen: Fix suffix strip in dot2k
tools/rv: Fix cleanup after failed trace setup
tools/rv: Fix substring match when listing container monitors
tools/rv: Fix substring match bug in monitor name search
tools/rv: Ensure monitor name and desc are NUL-terminated
rv: Use 0 to check preemption enabled in opid
rv: Prevent task migration while handling per-CPU events
rv: Ensure synchronous cleanup for HA monitors
rv: Add automatic cleanup handlers for per-task HA monitors
rv: Do not rely on clean monitor when initialising HA
rv: Fix monitor start ordering and memory ordering for monitoring flag
rv: Ensure all pending probes terminate on per-obj monitor destroy
rv: Prevent in-flight per-task handlers from using invalid slots
rv: Reset per-task DA monitors before releasing the slot
rv: Fix __user specifier usage in extract_params()
- Fix multi-character short option parsing
Fix regression in parsing of multiple-character short options (e.g.
-p100 /= -p 100/, -un /= -u -n/) caused by getopt_long() internal state
corruption after a refactoring.
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Merge tag 'trace-tools-v7.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull RTLA fix from Steven Rostedt:
- Fix multi-character short option parsing
Fix regression in parsing of multiple-character short options
(eg -p100 /= -p 100/, -un /= -u -n/) caused by getopt_long()
internal state corruption after a refactoring.
* tag 'trace-tools-v7.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
rtla: Fix parsing of multi-character short options
address post-7.1 issues or aren't considered suitable for backporting.
Thre's a 2 patch series "mm/damon/{reclaim,lru_sort}: handle ctx
allocation failures" from SeongJae Park which fixes a couple of DAMON
-ENOMEM bloopers. The rest are singletons - please see the individual
changelogs for details.
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Merge tag 'mm-hotfixes-stable-2026-06-08-20-51' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"11 hotfixes. 9 are for MM. 8 are cc:stable and the remaining 3 address
post-7.1 issues or aren't considered suitable for backporting.
Thre's a two-patch series "mm/damon/{reclaim,lru_sort}: handle ctx
allocation failures" from SeongJae Park which fixes a couple of DAMON
-ENOMEM bloopers. The rest are singletons - please see the individual
changelogs for details"
* tag 'mm-hotfixes-stable-2026-06-08-20-51' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/mincore: handle non-swap entries before !CONFIG_SWAP guard
arm64: mm: call pagetable dtor when freeing hot-removed page tables
mm/list_lru: drain before clearing xarray entry on reparent
mm/huge_memory: use correct flags for device private PMD entry
mm/damon/lru_sort: handle ctx allocation failure
mm/damon/reclaim: handle ctx allocation failure
zram: fix use-after-free in zram_bvec_write_partial()
MAINTAINERS: update Baoquan He's email address
tools headers UAPI: sync linux/taskstats.h for procacct.c
mm/cma_sysfs: skip inactive CMA areas in sysfs
ipc/shm: serialize orphan cleanup with shm_nattch updates
When ip-link output is unavailable, when the upcall daemon log has not
been written yet, or when pahole does not know the OVS drop subsystem
ID, the affected command substitutions silently produce empty strings.
The caller then passes empty sha= or pid= arguments to ovs_add_flow,
or matches against wrong drop reason codes, all without a diagnostic.
Add [ -z ] guards immediately after each assignment. For test_arp_ping,
also align the MAC extraction to use awk '/link\/ether/' as in
test_pop_vlan. The drop_reason guard returns ksft_skip because an
absent subsystem ID is an environment issue, not a test failure.
Signed-off-by: Minxi Hou <houminxi@gmail.com>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Link: https://patch.msgid.link/20260604163016.3929371-1-houminxi@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
GRO test is very timing-sensitive, packets may be delayed
by the network or just sent slowly. Because of this we retry
each test case up to 6 times.
This makes perfect sense for positive cases, in which we want
to see coalescing. Negative test cases, which modify headers
and expect no coalescing should have opposite treatment.
We should really try 6 times and make sure that each time
the test failed. This would, however, require that we annotate
each test to indicate whether its positive or negative.
Let's start with a simpler improvement. Do not allow
retries if we detected over-coalescing. Previously the negative
case would have to get lucky at least once in 6 tries to pass.
Now the first failure breaks the retry loop.
For background - NICs tend to ignore the contents of the TCP
timestamp option, so that test case commonly fails. In NIPA
having 6 attempts, however, was enough for some NICs to get
multiple successful runs in a row, getting the test cases
auto-classified as expected to pass, even tho the NIC does
not comply with the expectations.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20260607002401.212976-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit extends most test cases in ipmr.c for IPV6MR.
Note that IP6MR does not provide rtnetlink interface for MFC,
so such tests are added to XFAIL_ADD().
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260604224712.3209821-2-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add a variant of the existing FQ tests, but pass CLOCK_TAI rather than
the native CLOCK_MONOTONIC clock id.
FQ used to imply monotonic. This is no longer the case, and the
inverse need not hold either. Rename $PREFIX_mono to $PREFIX_fq.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20260604194221.3319080-4-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
prctl(PR_SET_CFI,PR_CFI_BRANCH_LANDING_PADS) silently ignored
unknown control values. Only PR_CFI_{ENABLE,DISABLE,LOCK} should
be permitted.
This changes the behavior of the uABI (fails previously accepted bits
with EINVAL).
Fixes: 08ee155905 ("prctl: cfi: change the branch landing pad prctl()s to be more descriptive")
Signed-off-by: Richard Patel <ripatel@wii.dev>
Link: https://patch.msgid.link/20260518183918.322545-1-ripatel@wii.dev
[pjw@kernel.org: change the patch description to note that although this is a uABI change, it does not break the uABI]
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Please consider pulling these changes from the signed vfs-7.1-rc7.fixes tag.
Thanks!
Christian
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Merge tag 'vfs-7.1-rc7.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- Fix error handling in ovl_cache_get()
- Tighten access checks for exited tasks in pidfd_getfd()
- Fix selftests leak in __wait_for_test()
- Limit FUSE_NOTIFY_RETRIEVE to uptodate folios
- Reject fuse_notify() pagecache ops on directories
- Clear JOBCTL_PENDING_MASK for caller in zap_other_threads()
- Fix failure to unlock in nfsd4_create_file()
- Fix pointer arithmetic in qnx6 directory iteration
- Fix UAF due to unlocked ->mnt_ns read in may_decode_fh()
- Avoid potential null folio->mapping deref during iomap error
reporting
* tag 'vfs-7.1-rc7.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
iomap: avoid potential null folio->mapping deref during error reporting
fhandle: fix UAF due to unlocked ->mnt_ns read in may_decode_fh()
fs/qnx6: fix pointer arithmetic in directory iteration
VFS: fix possible failure to unlock in nfsd4_create_file()
signal: clear JOBCTL_PENDING_MASK for caller in zap_other_threads()
fuse: reject fuse_notify() pagecache ops on directories
fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios
selftests: harness: fix pidfd leak in __wait_for_test
pidfd: refuse access to tasks that have started exiting harder
ovl: keep err zero after successful ovl_cache_get()
Add userns_devmem.py, which mirrors nk_devmem.py but places the netkit
guest in a netns whose owning user_ns is non-init. ncdevmem is ran there
via nsenter so the bind-rx call is issued with creds that hold
CAP_NET_ADMIN only in the child user_ns.
Without the preceding GENL_UNS_ADMIN_PERM patch the test fails at
bind-rx with EPERM, but with the patch the transfer completes and tests
pass.
Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260602-nl-prov-v2-2-ad721142c641@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
By default, pppd attempts to detect loopbacks on the underlying
interface using a pseudo-randomly generated magic number and checks if
the same value is received. The seed for the PRNG is a hash of hostname
XOR current time XOR pid, which is likely to collide on NIPA, causing
false positives. Disable magic number generation.
Reported-by: Matthieu Baerts <matttbe@kernel.org>
Fixes: 7af2a94f4d ("selftests: net: add tests for PPPoL2TP")
Signed-off-by: Qingfang Deng <qingfang.deng@linux.dev>
Link: https://patch.msgid.link/20260603061746.23452-1-qingfang.deng@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- tracing/probes: Point the error offset correctly for eprobe argument error
Fix the eprobe event parser to point error position correctly.
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Merge tag 'probes-fixes-v7.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing/probes fix from Masami Hiramatsu:
"Fix the eprobe event parser to point error position correctly"
* tag 'probes-fixes-v7.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing/probes: Point the error offset correctly for eprobe argument error
Make the RDMA test return XFAIL rather than skip when RXE is not
available, since the RDMA datapath is not run in netdev CI.
Change the three RDMA-prerequisite checks in check_rdma_conf() and
check_rdma_conf_enabled() to exit with KSFT_XFAIL (2) and tag their
messages [XFAIL] instead of [SKIP].
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260602050657.26389-5-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Commit 92cc6708f4 ("selftests: rds: config: disable modules") set
CONFIG_MODULES=n since run.sh required this kconfig. But disabling
modules also forces every =m option to =n rather than =y, which can
silently drop unrelated features.
This patch removes CONFIG_MODULES=n from the rds selftest config and
updates the check_*conf_enabled() routines to accept a config as
either built-in (=y) or modular (=m). A new probe_module() function
is added to load the backing module when a component is set to be
modular (=m). config.sh no longer forces CONFIG_MODULES=n, so a user
who follows the SKIP message to run config.sh does not silently end
up with modules disabled again.
rds.ko itself is auto-loaded on socket creation, and rds_rdma.ko is
auto-loaded when SO_RDS_TRANSPORT is set with RDS_TRANS_IB, but the
TCP transport (rds_tcp.ko) is not auto-loaded on the bind path, so
the backing modules are loaded explicitly here.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260602050657.26389-4-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The RDS selftests create AF_RDS sockets but never selects a transport,
so the transport is chosen implicitly based on network topology when
the socket is bound. If underlying connection establishment fails, RDS
can fall back to another transport (e.g. loopback) and the test still
passes, silently bypassing the intended datapath it is meant to
exercise.
Set SO_RDS_TRANSPORT to the proper RDS_TRANS_IB or RDS_TRANS_TCP before
they are bound, so the test fails loudly if the intended transport is
unavailable rather than passing on a different path.
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260602050657.26389-3-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This patch renames run.sh to rds_run.sh. This gives the test a
self-describing name that appears in the netdev CI dashboard.
Suggested-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Allison Henderson <achender@kernel.org>
Link: https://patch.msgid.link/20260602050657.26389-2-achender@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Turns out Python YAML defaults to a pure Python loader for YAML
files which is a lot slower than the C loader (using libyaml).
Try to use the C one whenever possible.
The avg time to run:
$ tools/net/ynl/pyynl/cli.py --family tc --no-schema
drops from 300+ ms to 115 ms with this change (40 samples).
We could drop the load time further to 85 ms if we "compiled"
the specs to JSON. Slightly tricky parts are that we don't
currently install the specs at all on make install, so it's
unclear where to put the conversion. Also JSON has questionable
support for comments and we need an SPDX line.
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Nicolai Buchwitz <nb@tipi-net.de>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20260603210810.2636193-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Current release - fix to a fix:
- Bluetooth: MGMT: fix backward compatibility with bluetoothd
which adds stray bytes to MGMT_OP_ADD_EXT_ADV_DATA
Previous releases - regressions:
- af_unix: fix inq_len update inaccuracy on partial read
- eth: fec: fix pinctrl default state restore order on resume
- wifi: iwlwifi: mvm: don't support the reset handshake for old firmwares
- wifi: iwlwifi: pcie: simplify the resume flow if fast resume is
not used, work around NIC access failures
Previous releases - always broken:
- Bluetooth: L2CAP: reject BR/EDR signaling packets over MTUsig
- sctp: fix a couple of bugs in COOKIE_ECHO processing
- sched: fix pedit partial COW leading to page cache corruption
- wifi: nl80211: reject oversized EMA RNR lists
- netfilter: conntrack_irc: fix possible out-of-bounds read
- netfilter: bridge: make ebt_snat ARP rewrite writable
- appletalk: zero-initialize aarp_entry to prevent heap info leak
- ipv4: restrict IPOPT_SSRR and IPOPT_LSRR options
- mptcp: fix number of bugs reported by AI scans and discovered during
NVMe over MPTCP testing
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-7.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from Netfilter, wireless and Bluetooth.
Current release - fix to a fix:
- Bluetooth: MGMT: fix backward compatibility with bluetoothd
which adds stray bytes to MGMT_OP_ADD_EXT_ADV_DATA
Previous releases - regressions:
- af_unix: fix inq_len update inaccuracy on partial read
- eth: fec: fix pinctrl default state restore order on resume
- wifi: iwlwifi:
- mvm: don't support the reset handshake for old firmwares
- pcie: simplify the resume flow if fast resume is not used,
work around NIC access failures
Previous releases - always broken:
- Bluetooth: L2CAP: reject BR/EDR signaling packets over MTUsig
- sctp: fix a couple of bugs in COOKIE_ECHO processing
- sched: fix pedit partial COW leading to page cache corruption
- wifi: nl80211: reject oversized EMA RNR lists
- netfilter:
- conntrack_irc: fix possible out-of-bounds read
- bridge: make ebt_snat ARP rewrite writable
- appletalk: zero-initialize aarp_entry to prevent heap info leak
- ipv4: restrict IPOPT_SSRR and IPOPT_LSRR options
- mptcp: fix number of bugs reported by AI scans and discovered
during NVMe over MPTCP testing"
* tag 'net-7.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (85 commits)
Reapply "bnxt_en: bring back rtnl_lock() in the bnxt_open() path"
udp: clear skb->dev before running a sockmap verdict
sctp: purge outqueue on stale COOKIE-ECHO handling
bonding: annotate data-races arcound churn variables
net/802/mrp: fix vector attribute parsing in mrp_pdu_parse_vecattr
rtase: Avoid sleeping in get_stats64()
ieee802154: 6lowpan: only accept IPv6 packets in lowpan_xmit()
ipv6: mcast: Fix use-after-free when processing MLD queries
selftests: net: add vxlan vnifilter notification test
vxlan: vnifilter: fix spurious notification on VNI update
vxlan: vnifilter: send notification on VNI add
rtase: Reset TX subqueue when clearing TX ring
octeontx2-af: npc: Fix CPT channel mask in npc_install_flow
dt-bindings: ethernet: eswin: fix hsp-sp-csr backward compatibility
sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing
net/sched: fix pedit partial COW leading to page cache corruption
vsock/vmci: fix sk_ack_backlog leak on failed handshake
net: bonding: fix NULL pointer dereference in bond_do_ioctl()
geneve: fix length used in GRO hint UDP checksum adjustment
net: ethernet: mtk_eth_soc: Fix use-after-free in metadata dst teardown
...
Add a selftest for VXLAN vnifilter netlink notifications that verifies
RTM_NEWTUNNEL and RTM_DELTUNNEL are sent correctly when VNIs are added,
deleted, or updated, and that no spurious notifications are sent when
a VNI is re-added with the same attributes.
Signed-off-by: Andy Roulin <aroulin@nvidia.com>
Acked-by: Petr Machata <petrm@nvidia.com>
Link: https://patch.msgid.link/20260602185138.253265-4-aroulin@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The rvgen parser for LTL stores literal true values in the python
representation (capitalised True), this doesn't build in C.
The Literal class should already handle this case but ASTNode skips its
strigification method and converts the value (true/false) directly.
Fix by delegating ASTNode stringification to the Literal and Variable
classes instead of bypassing them.
Fixes: 97ffa4ce6a ("verification/rvgen: Add support for linear temporal logic")
Reviewed-by: Nam Cao <namcao@linutronix.de>
Link: https://lore.kernel.org/r/20260514152055.229162-8-gmonaco@redhat.com
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
After rvgen was refactored to use subparsers, the common options (-a and
-D) were left in the main parser. This meant that they needed to be
called /before/ the subcommand and using them without subcommand was
allowed. This is not the original intent.
rvgen -D "some description" container -n name
Define the options as parent in the subparsers to allow them to be used
from both subcommands together with other options.
rvgen container -n name -D "some description"
Fixes: 5270a0e304 ("verification/dot2k: Replace is_container() hack with subparsers")
Reviewed-by: Nam Cao <namcao@linutronix.de>
Link: https://lore.kernel.org/r/20260514152055.229162-7-gmonaco@redhat.com
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
__start_to_invariant_check() and __get_constraint_env() parse the
environment variable's name from sources that have it padded with the
monitor name. This is removed using rstrip(), which is not meant to
strip a substring but rather a set of characters.
Use removesuffix() to actually get rid of the trailing _<monitor name>.
Fixes: a82adadb16 ("verification/rvgen: Add support for Hybrid Automata")
Reviewed-by: Nam Cao <namcao@linutronix.de>
Link: https://lore.kernel.org/r/20260601153840.124372-12-gmonaco@redhat.com
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
Currently if ikm_setup_trace_instance() fails, the tool returns without
any cleanup, if rv was called with both -t and -r, this means the
reactor is not going to be cleared.
Jump to the cleanup label to restore the reactor if necessary.
Fixes: 6d60f89691 ("tools/rv: Add in-kernel monitor interface")
Reviewed-by: Nam Cao <namcao@linutronix.de>
Link: https://lore.kernel.org/r/20260514152055.229162-5-gmonaco@redhat.com
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
When listing monitors within a specific container (rv list <container>),
the tool incorrectly matched monitors if the requested container name
was only a prefix of the actual container (e.g., 'rv list sche' would
incorrectly list monitors from 'sched:').
Fix this by ensuring the container name is an exact match and is
immediately followed by the ':' separator.
Fixes: eba321a16f ("tools/rv: Add support for nested monitors")
Reviewed-by: Nam Cao <namcao@linutronix.de>
Link: https://lore.kernel.org/r/20260514152055.229162-3-gmonaco@redhat.com
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
__ikm_find_monitor_name() relies on strstr() to find a monitor by name,
which fails if the target monitor is a substring of a previously listed
monitor.
Fix it by tokenizing the available_monitors file and matching full
tokens instead.
Fixes: eba321a16f ("tools/rv: Add support for nested monitors")
Reviewed-by: Nam Cao <namcao@linutronix.de>
Link: https://lore.kernel.org/r/20260514152055.229162-2-gmonaco@redhat.com
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
ikm_fill_monitor_definition() copies monitor name and description with
strncpy(), but does not guarantee NUL termination when source strings are
equal to or longer than the destination buffers.
Clamp copies to sizeof(dst) - 1 and explicitly append '\0' for both fields
to keep them safe for later string operations.
Suggested-by: unknownbbqrx <dev@unknownbbqr.xyz>
Fixes: 6d60f89691 ("tools/rv: Add in-kernel monitor interface")
Link: https://lore.kernel.org/r/20260604120946.90302-2-gmonaco@redhat.com
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
A bug was reported where the parsing of multi-character short options,
be it a short option with an argument specified without space (e.g.
"-p100") or multiple short options in one argument (e.g. -un), ignores
options specific to individual tools.
Furthermore, if the rest of the option is supposed to be an argument, it
gets reinterpreted as a string of options. For example, -p100 gets
interpreted as -100, which is due to hackish implementation read as
--no-thread --no-irq --no-irq with timerlat hist, causing rtla to error
out:
$ rtla timerlat hist -p100
no-irq and no-thread set, there is nothing to do here
This behavior is caused by getopt_long() being called twice on each
argument, once in common_parse_options(), once in [tool]_parse_args():
- common_parse_options() calls getopt_long() with an array of options
common for all rtla tools, while suppressing errors (opterr = 0).
- If the option fails to parse, common_parse_options() returns 0.
- If 0 is returned from common_parse_options(), [tool]_parse_args()
calls getopt_long() again, with its own set of options.
* [tool] means one of {osnoise,timerlat}_{top,hist}
At least in glibc, getopt_long() increments its internal nextchar
variable even if the option is not recognized. That means that in the
case of "-p100", common_parse_options() sets nextchar pointing to '1',
and timerlat_hist_parse_args() sees '1', not 'p'; the same then repeats
for the first and second '0'.
As there is no way to restore the correct internal state of
getopt_long() reliably, fix the issue by merging the common options back
to the longopt array and option string of the [tool]_parse_args()
functions using a macro; only the switch part is left in the original
function, which is renamed to set_common_option().
Fixes: 850cd24cb6 ("tools/rtla: Add common_parse_options()")
Reported-by: John Kacur <jkacur@redhat.com>
Tested-by: John Kacur <jkacur@redhat.com>
Link: https://lore.kernel.org/r/20260602125506.3325345-1-tglozar@redhat.com
Signed-off-by: Tomas Glozar <tglozar@redhat.com>
Add a test to verify that when userspace PM fails to create a subflow
(e.g. using an unreachable address), the extra_subflows counter is not
decremented below zero.
Fixes: 77e4b94a3d ("mptcp: update userspace pm infos")
Cc: stable@vger.kernel.org
Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260602-net-mptcp-misc-fixes-7-1-rc7-v2-6-856831229976@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add test to verify that when a skb is partially consumed,
unix_inq_len() return correct remaining byte count.
Before:
# RUN scm_inq.stream.partial_read ...
# scm_inq.c:165:partial_read:Expected remain (512) == *(int *)CMSG_DATA(cmsg) (768)
# partial_read: Test terminated by assertion
# FAIL scm_inq.stream.partial_read
not ok 2 scm_inq.stream.partial_read
After:
# RUN scm_inq.stream.partial_read ...
# OK scm_inq.stream.partial_read
ok 2 scm_inq.stream.partial_read
Signed-off-by: Jianyu Li <jianyu.li@mediatek.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260601113640.231897-3-jianyu.li@mediatek.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
After commit 9b93f7e327 ("tools/getdelays: use the static UAPI headers
from tools/include/uapi"), the Makefile was changed to use
-I../include/uapi/ instead of -I../../usr/include to ensure tools always
use the up-to-date UAPI headers.
However, only linux/taskstats.h was added to tools/include/uapi/ in commit
e5bbb35a07 ("tools headers UAPI: sync linux/taskstats.h"), but
linux/acct.h was missing.
This causes procacct.c to fail to compile with:
procacct.c:234:37: error: 'AGROUP' undeclared (first use in this function)
gcc -I../include/uapi/ getdelays.c -o getdelays
gcc -I../include/uapi/ procacct.c -o procacct
procacct.c: In function `print_procacct':
procacct.c:234:37: error: `AGROUP' undeclared (first use in this function)
did you mean `NOGROUP'?
234 | , t->version >= 12 ? (t->ac_flag & AGROUP ? 'P' : 'T') : '?'
| ^~~~~~
| NOGROUP
procacct.c:234:37: note: each undeclared ident
because procacct.c uses the AGROUP macro defined in linux/acct.h.
Add the missing linux/acct.h to complete the static UAPI header set.
Link: https://lore.kernel.org/20260527213558929EhiHHy9EDTMjmg3uuDOMi@zte.com.cn
Fixes: 9b93f7e327 ("tools/getdelays: use the static UAPI headers from tools/include/uapi")
Signed-off-by: Wang Yaxin <wang.yaxin@zte.com.cn>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Cc: Fan Yu <fan.yu9@zte.com.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: xu xin <xu.xin16@zte.com.cn>
Cc: Yang Yang <yang.yang29@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
One cpuset fix and a maintenance update, both low-risk:
- Fix cpuset partition CPU accounting under sibling CPU exclusion that could
produce wrong CPU assignments and trigger scheduling-domain warnings.
Includes selftests.
- Update an email address in MAINTAINERS.
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Merge tag 'cgroup-for-7.1-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
"One cpuset fix and a maintenance update, both low-risk:
- Fix cpuset partition CPU accounting under sibling CPU exclusion
that could produce wrong CPU assignments and trigger
scheduling-domain warnings. Includes selftests.
- Update an email address in MAINTAINERS"
* tag 'cgroup-for-7.1-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup/cpuset: Change Ridong's email
cgroup/cpuset: Add test cases for sibling CPU exclusion on partition update
cgroup/cpuset: Use effective_xcpus in partcmd_update add/del mask calculation
Two low-risk fixes:
- Drop a spurious warning that can fire during cgroup migration while a
sched_ext scheduler is loaded.
- Fix a drgn-based debug script that broke after scheduler state moved into
a per-scheduler struct.
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Merge tag 'sched_ext-for-7.1-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext
Pull sched_ext fixes from Tejun Heo:
"Two low-risk fixes:
- Drop a spurious warning that can fire during cgroup migration while
a sched_ext scheduler is loaded
- Fix a drgn-based debug script that broke after scheduler state
moved into a per-scheduler struct"
* tag 'sched_ext-for-7.1-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
sched_ext: Don't warn on NULL cgrp_moving_from in scx_cgroup_move_task()
tools/sched_ext: Fix scx_show_state per-scheduler state reads
Hybrid automata monitors may start timers, depending on the model, these
may remain active on an exiting task and cause false positives or even
access freed memory.
Add an enable/disable hook in the HA code, currently only populated by
the per-task handler for registration and deregistration.
This hooks to the sched_process_exit event and ensures the timer is
stopped for every exiting task. The handler is enabled automatically but
may be disabled, for instance if the monitor uses the event for another
purpose (but should still manually ensure timers are stopped).
Fixes: f5587d1b6e ("rv: Add Hybrid Automata monitor type")
Reviewed-by: Nam Cao <namcao@linutronix.de>
Link: https://lore.kernel.org/r/20260601153840.124372-8-gmonaco@redhat.com
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
The getaddrinfo() call in bind_socket() dynamically allocates memory
for the result linked list that must be freed with freeaddrinfo().
However, none of the code paths after a successful getaddrinfo() call
free this memory, causing a leak in every invocation of bind_socket().
Signed-off-by: longlong yan <yanlonglong@kylinos.cn>
Link: https://patch.msgid.link/20260601013927.1835-1-yanlonglong@kylinos.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add dec_ttl action support to the OVS kernel datapath selftest
framework:
- Add dec_ttl nested NLA class to ovs-dpctl.py with proper
OVS_DEC_TTL_ATTR_ACTION sub-attribute handling
- Add parse support for dec_ttl(le_1(<inner_actions>)) action
string, consistent with the odp-util.c format where le_1()
holds the actions taken when TTL reaches 1
- Add dpstr output formatting for dec_ttl actions
- Add test_dec_ttl() to openvswitch.sh that verifies:
* Normal TTL packets are forwarded after decrement
* TTL=1 packets are dropped (TTL expiry)
* Graceful skip via ksft_skip if kernel lacks dec_ttl support
The dec_ttl class uses late-binding type resolution to reference
ovsactions for its inner action list, avoiding circular references
at class definition time.
Signed-off-by: Minxi Hou <houminxi@gmail.com>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Link: https://patch.msgid.link/20260530021443.1734484-1-houminxi@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add new tunnel test cases for ip6tnl, ipip, and sit. ip6tnl supports
ipv[46] as inner l3 header, and the other two tunnels only support a
single inner l3 type.
Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com>
Link: https://patch.msgid.link/20260529-tso-tunnels-v1-1-3771ee9eaaa9@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
As done in pppoe.sh, start socat as the syslog listener. In case the
test fails, dump its log to see what's going on.
Signed-off-by: Qingfang Deng <qingfang.deng@linux.dev>
Reviewed-by: Matthieu Baerts <matttbe@kernel.org>
Link: https://patch.msgid.link/20260529021146.5739-1-qingfang.deng@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Conflicts:
drivers/net/ethernet/microsoft/mana/mana_en.c:
17bfe0a8c0 ("net: mana: Add NULL guards in teardown path to prevent panic on attach failure")
d07efe5a6e ("net: mana: Use per-queue allocation for tx_qp to reduce allocation size")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Fix to point the error offset correctly for eprobe argument error.
In the cleanup commit 1b8b0cd754 ("tracing/probes: Move event parameter
fetching code to common parser"), due to incorrect backward compatibility
aimed at conforming to the test specifications, the error location was set
to 0 when a non-existent formal parameter was specified for Eprobe.
However, this should be corrected in both the test and the implementation
to point correct error position.
Link: https://lore.kernel.org/all/177967567399.209006.1451571244515632097.stgit@devnote2/
Fixes: 1b8b0cd754 ("tracing/probes: Move event parameter fetching code to common parser")
Cc: stable@vger.kernel.org
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
