Two user triggerable UAFs:
- Possible race UAF setting up mmaps
- Syzkaller found UAF when erroring an file descriptor creation ioctl due
to the fput() work queue.
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Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd fixes from Jason Gunthorpe:
"Fix two user triggerable use-after-free issues:
- Possible race UAF setting up mmaps
- Syzkaller found UAF when erroring an file descriptor creation ioctl
due to the fput() work queue"
* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
iommufd/selftest: Update the fail_nth limit
iommufd: WARN if an object is aborted with an elevated refcount
iommufd: Fix race during abort for file descriptors
iommufd: Fix refcounting race during mmap
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Merge tag 'loongarch-fixes-6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
"Fix some build warnings for RUST-enabled objtool check, align ACPI
structures for ARCH_STRICT_ALIGN, fix an unreliable stack for live
patching, add some NULL pointer checkings, and fix some bugs around
KVM"
* tag 'loongarch-fixes-6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_pch_pic_regs_access()
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_sw_status_access()
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_regs_access()
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_ctrl_access()
LoongArch: KVM: Fix VM migration failure with PTW enabled
LoongArch: KVM: Remove unused returns and semicolons
LoongArch: vDSO: Check kcalloc() result in init_vdso()
LoongArch: Fix unreliable stack for live patching
LoongArch: Replace sprintf() with sysfs_emit()
LoongArch: Check the return value when creating kobj
LoongArch: Align ACPI structures if ARCH_STRICT_ALIGN enabled
LoongArch: Update help info of ARCH_STRICT_ALIGN
LoongArch: Handle jump tables options for RUST
LoongArch: Make LTO case independent in Makefile
objtool/LoongArch: Mark special atomic instruction as INSN_BUG type
objtool/LoongArch: Mark types based on break immediate code
There are more failure conditions now so 400 iterations is not enough pass
them all, up it to 1000. The limit exists so it doesn't infinite loop.
Link: https://patch.msgid.link/r/3-v1-02cd136829df+31-iommufd_syz_fput_jgg@nvidia.com
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Current release - fix to a fix:
- eth: Revert "net/mlx5e: Update and set Xon/Xoff upon port speed set"
- wifi: iwlwifi: pcie: fix byte count table for 7000/8000 devices
- net: clear sk->sk_ino in sk_set_socket(sk, NULL), fix CRIU
Previous releases - regressions:
- eth: ice: fix Rx page leak on multi-buffer frames
- bonding: set random address only when slaves already exist
- rxrpc: fix untrusted unsigned subtract
- eth: mlx5: don't return mlx5_link_info table when speed is unknown
Previous releases - always broken:
- tls: make sure to abort the stream if headers are bogus
- tcp: fix null-deref when using TCP-AO with TCP_REPAIR
- dpll: fix skipping last entry in clock quality level reporting
- eth: qed: don't collect too many protection override GRC elements,
fix memory corruption
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from wireless. No known regressions at this point.
Current release - fix to a fix:
- eth: Revert "net/mlx5e: Update and set Xon/Xoff upon port speed set"
- wifi: iwlwifi: pcie: fix byte count table for 7000/8000 devices
- net: clear sk->sk_ino in sk_set_socket(sk, NULL), fix CRIU
Previous releases - regressions:
- bonding: set random address only when slaves already exist
- rxrpc: fix untrusted unsigned subtract
- eth:
- ice: fix Rx page leak on multi-buffer frames
- mlx5: don't return mlx5_link_info table when speed is unknown
Previous releases - always broken:
- tls: make sure to abort the stream if headers are bogus
- tcp: fix null-deref when using TCP-AO with TCP_REPAIR
- dpll: fix skipping last entry in clock quality level reporting
- eth: qed: don't collect too many protection override GRC elements,
fix memory corruption"
* tag 'net-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (51 commits)
octeontx2-pf: Fix use-after-free bugs in otx2_sync_tstamp()
cnic: Fix use-after-free bugs in cnic_delete_task
devlink rate: Remove unnecessary 'static' from a couple places
MAINTAINERS: update sundance entry
net: liquidio: fix overflow in octeon_init_instr_queue()
net: clear sk->sk_ino in sk_set_socket(sk, NULL)
Revert "net/mlx5e: Update and set Xon/Xoff upon port speed set"
selftests: tls: test skb copy under mem pressure and OOB
tls: make sure to abort the stream if headers are bogus
selftest: packetdrill: Add tcp_fastopen_server_reset-after-disconnect.pkt.
tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect().
octeon_ep: fix VF MAC address lifecycle handling
selftests: bonding: add vlan over bond testing
bonding: don't set oif to bond dev when getting NS target destination
net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer
net/mlx5e: Add a miss level for ipsec crypto offload
net/mlx5e: Harden uplink netdev access against device unbind
MAINTAINERS: make the DPLL entry cover drivers
doc/netlink: Fix typos in operation attributes
igc: don't fail igc_probe() on LED setup error
...
When compiling with LLVM and CONFIG_RUST is set, there exists the
following objtool warning:
rust/compiler_builtins.o: warning: objtool: __rust__unordsf2(): unexpected end of section .text.unlikely.
objdump shows that the end of section .text.unlikely is an atomic
instruction:
amswap.w $zero, $ra, $zero
According to the LoongArch Reference Manual, if the amswap.w atomic
memory access instruction has the same register number as rd and rj,
the execution will trigger an Instruction Non-defined Exception, so
mark the above instruction as INSN_BUG type to fix the warning.
Cc: stable@vger.kernel.org
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
If the break immediate code is 0, it should mark the type as
INSN_TRAP. If the break immediate code is 1, it should mark the
type as INSN_BUG.
While at it, format the code style and add the code comment for nop.
Cc: stable@vger.kernel.org
Suggested-by: WANG Rui <wangrui@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Add a test which triggers mem pressure via OOB writes.
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250917002814.1743558-2-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The test reproduces the scenario explained in the previous patch.
Without the patch, the test triggers the warning and cannot see the last
retransmitted packet.
# ./ksft_runner.sh tcp_fastopen_server_reset-after-disconnect.pkt
TAP version 13
1..2
[ 29.229250] ------------[ cut here ]------------
[ 29.231414] WARNING: CPU: 26 PID: 0 at net/ipv4/tcp_timer.c:542 tcp_retransmit_timer+0x32/0x9f0
...
tcp_fastopen_server_reset-after-disconnect.pkt:26: error handling packet: Timed out waiting for packet
not ok 1 ipv4
tcp_fastopen_server_reset-after-disconnect.pkt:26: error handling packet: Timed out waiting for packet
not ok 2 ipv6
# Totals: pass:0 fail:2 xfail:0 xpass:0 skip:0 error:0
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250915175800.118793-3-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add a vlan over bond testing to make sure arp/ns target works.
Also change all the configs to mudules.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20250916080127.430626-2-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
A small set of fixes for crashes in different commands and conditions.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Merge tag 'perf-tools-fixes-for-v6.17-2025-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tools fixes from Namhyung Kim:
"A small set of fixes for crashes in different commands and conditions"
* tag 'perf-tools-fixes-for-v6.17-2025-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
perf maps: Ensure kmap is set up for all inserts
perf lock: Provide a host_env for session new
perf subcmd: avoid crash in exclude_cmds when excludes is empty
This patch fixes several issues in the error reporting of the MPTCP sockopt
selftest:
1. Fix diff not printed: The error messages for counter mismatches had
the actual difference ('diff') as argument, but it was missing in the
format string. Displaying it makes the debugging easier.
2. Fix variable usage: The error check for 'mptcpi_bytes_acked' incorrectly
used 'ret2' (sent bytes) for both the expected value and the difference
calculation. It now correctly uses 'ret' (received bytes), which is the
expected value for bytes_acked.
3. Fix off-by-one in diff: The calculation for the 'mptcpi_rcv_delta' diff
was 's.mptcpi_rcv_delta - ret', which is off-by-one. It has been
corrected to 's.mptcpi_rcv_delta - (ret + 1)' to match the expected
value in the condition above it.
Fixes: 5dcff89e14 ("selftests: mptcp: explicitly tests aggregate counters")
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250912-net-mptcp-pm-uspace-deny_join_id0-v1-5-40171884ade8@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The previous commit adds the MPTCP_PM_EV_FLAG_DENY_JOIN_ID0 flag. Make
sure it is correctly announced by the other peer when it has been
received.
pm_nl_ctl will now display 'deny_join_id0:1' when monitoring the events,
and when this flag was set by the other peer.
The 'Fixes' tag here below is the same as the one from the previous
commit: this patch here is not fixing anything wrong in the selftests,
but it validates the previous fix for an issue introduced by this commit
ID.
Fixes: 702c2f646d ("mptcp: netlink: allow userspace-driven subflow establishment")
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250912-net-mptcp-pm-uspace-deny_join_id0-v1-3-40171884ade8@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
To be able to find which capture files have been produced after several
runs.
This prefix was not printed anywhere before.
While at it, always use the same prefix by taking info from ns1, instead
of "$connector_ns", which is sometimes ns1, sometimes ns2 in the
subtests.
Reviewed-by: Mat Martineau <martineau@kernel.org>
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250912-net-mptcp-fix-sft-connect-v1-5-d40e77cbbf02@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This is better than printing random bytes in the terminal.
Note that Jakub suggested 'hexdump', but Mat found out this tool is not
often installed by default. 'od' can do a similar job, and it is in the
POSIX specs and available in coreutils, so it should be on more systems.
While at it, display a few more bytes, just to fill in the two lines.
And no need to display the 3rd only line showing the next number of
bytes: 0000040.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Suggested-by: Mat Martineau <martineau@kernel.org>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250912-net-mptcp-fix-sft-connect-v1-4-d40e77cbbf02@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The disconnect test-case, with 'plain' TCP sockets generates spurious
errors, e.g.
07 ns1 TCP -> ns1 (dead:beef:1::1:10006) MPTCP
read: Connection reset by peer
read: Connection reset by peer
(duration 155ms) [FAIL] client exit code 3, server 3
netns ns1-FloSdv (listener) socket stat for 10006:
TcpActiveOpens 2 0.0
TcpPassiveOpens 2 0.0
TcpEstabResets 2 0.0
TcpInSegs 274 0.0
TcpOutSegs 276 0.0
TcpOutRsts 3 0.0
TcpExtPruneCalled 2 0.0
TcpExtRcvPruned 1 0.0
TcpExtTCPPureAcks 104 0.0
TcpExtTCPRcvCollapsed 2 0.0
TcpExtTCPBacklogCoalesce 42 0.0
TcpExtTCPRcvCoalesce 43 0.0
TcpExtTCPChallengeACK 1 0.0
TcpExtTCPFromZeroWindowAdv 42 0.0
TcpExtTCPToZeroWindowAdv 41 0.0
TcpExtTCPWantZeroWindowAdv 13 0.0
TcpExtTCPOrigDataSent 164 0.0
TcpExtTCPDelivered 165 0.0
TcpExtTCPRcvQDrop 1 0.0
In the failing scenarios (TCP -> MPTCP), the involved sockets are
actually plain TCP ones, as fallbacks for passive sockets at 2WHS time
cause the MPTCP listeners to actually create 'plain' TCP sockets.
Similar to commit 218cc16632 ("selftests: mptcp: avoid spurious errors
on disconnect"), the root cause is in the user-space bits: the test
program tries to disconnect as soon as all the pending data has been
spooled, generating an RST. If such option reaches the peer before the
connection has reached the closed status, the TCP socket will report an
error to the user-space, as per protocol specification, causing the
above failure. Note that it looks like this issue got more visible since
the "tcp: receiver changes" series from commit 06baf9bfa6 ("Merge
branch 'tcp-receiver-changes'").
Address the issue by explicitly waiting for the TCP sockets (-t) to
reach a closed status before performing the disconnect. More precisely,
the test program now waits for plain TCP sockets or TCP subflows in
addition to the MPTCP sockets that were already monitored.
While at it, use 'ss' with '-n' to avoid resolving service names, which
is not needed here.
Fixes: 218cc16632 ("selftests: mptcp: avoid spurious errors on disconnect")
Cc: stable@vger.kernel.org
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250912-net-mptcp-fix-sft-connect-v1-3-d40e77cbbf02@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
IO errors were correctly printed to stderr, and propagated up to the
main loop for the server side, but the returned value was ignored. As a
consequence, the program for the listener side was no longer exiting
with an error code in case of IO issues.
Because of that, some issues might not have been seen. But very likely,
most issues either had an effect on the client side, or the file
transfer was not the expected one, e.g. the connection got reset before
the end. Still, it is better to fix this.
The main consequence of this issue is the error that was reported by the
selftests: the received and sent files were different, and the MIB
counters were not printed. Also, when such errors happened during the
'disconnect' tests, the program tried to continue until the timeout.
Now when an IO error is detected, the program exits directly with an
error.
Fixes: 05be5e273c ("selftests: mptcp: add disconnect tests")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250912-net-mptcp-fix-sft-connect-v1-2-d40e77cbbf02@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
__maps__fixup_overlap_and_insert may split or directly insert a map,
when doing this the map may need to have a kmap set up for the sake of
the kmaps. The missing kmap set up fails the check_invariants test in
maps, later "Internal error" reports from map__kmap and ultimately
causes segfaults.
Similar fixes were added in commit e0e4e0b8b7 ("perf maps: Add
missing map__set_kmap_maps() when replacing a kernel map") and commit
25d9c0301d ("perf maps: Set the kmaps for newly created/added kernel
maps") but they missed cases. To try to reduce the risk of this,
update the kmap directly following any manual insert. This identified
another problem in maps__copy_from.
Fixes: e0e4e0b8b7 ("perf maps: Add missing map__set_kmap_maps() when replacing a kernel map")
Fixes: 25d9c0301d ("perf maps: Set the kmaps for newly created/added kernel maps")
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This test ensures that upon receiving decapsulated packets from a
tunnel interface in openvswitch, the tunnel metadata fields are
properly populated. This partially covers interoperability of the
kernel tunnel ports and openvswitch tunnels (LWT) and parsing and
formatting of the tunnel metadata fields of the openvswitch netlink
uAPI. Doing so, this test also ensures that fields and flags are
properly extracted during decapsulation by the tunnel core code,
serving as a regression test for the previously fixed issue with the
DF bit not being extracted from the outer IP header.
The ovs-dpctl.py script already supports all that is necessary for
the tunnel ports for this test, so we only need to adjust the
ovs_add_if() function to pass the '-t' port type argument in order
to be able to create tunnel ports in the openvswitch datapath.
Reviewed-by: Aaron Conole <aconole@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Link: https://patch.msgid.link/20250909165440.229890-3-i.maximets@ovn.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When "perf lock con" is run in a live mode, with no data file, a host
environment must be provided. Testing missed this as a failing assert
was creating the 1 line of expected stderr output.
$ sudo perf lock con -ab true
perf: util/session.c:195: __perf_session__new: Assertion `host_env != NULL' failed.
Aborted
Fixes: 525a599bad ("perf env: Remove global perf_env")
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
When cross-compiling the perf tool for ARM64, `perf help` may crash
with the following assertion failure:
help.c:122: exclude_cmds: Assertion `cmds->names[ci] == NULL' failed.
This happens when the perf binary is not named exactly "perf" or when
multiple "perf-*" binaries exist in the same directory. In such cases,
the `excludes` command list can be empty, which leads to the final
assertion in exclude_cmds() being triggered.
Add a simple guard at the beginning of exclude_cmds() to return early
if excludes->cnt is zero, preventing the crash.
Signed-off-by: hupu <hupu.gm@gmail.com>
Reported-by: Guilherme Amadio <amadio@gentoo.org>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20250909094953.106706-1-amadio@gentoo.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
We have an IPv6 routing regression with the relevant fix still
a WiP. This v2 includes a last-minute revert to avoid more
problems.
Current release - new code bugs:
- wifi: nl80211: completely disable per-link stats for now
Previous releases - regressions:
- dev_ioctl: take ops lock in hwtstamp lower paths
- netfilter:
- fix spurious set lookup failures
- fix lockdep splat due to missing annotation
- genetlink: fix genl_bind() invoking bind() after -EPERM
- phy: transfer phy_config_inband() locking responsibility to phylink
- can: xilinx_can: fix use-after-free of transmitted SKB
- hsr: fix lock warnings
- eth: igb: fix NULL pointer dereference in ethtool loopback test
- eth: i40e: fix Jumbo Frame support after iPXE boot
- eth: macsec: sync features on RTM_NEWLINK
Previous releases - always broken:
- tunnels: reset the GSO metadata before reusing the skb
- mptcp: make sync_socket_options propagate SOCK_KEEPOPEN
- can: j1939: implement NETDEV_UNREGISTER notification hanidler
- wifi: ath12k: fix WMI TLV header misalignment
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from CAN, netfilter and wireless.
We have an IPv6 routing regression with the relevant fix still a WiP.
This includes a last-minute revert to avoid more problems.
Current release - new code bugs:
- wifi: nl80211: completely disable per-link stats for now
Previous releases - regressions:
- dev_ioctl: take ops lock in hwtstamp lower paths
- netfilter:
- fix spurious set lookup failures
- fix lockdep splat due to missing annotation
- genetlink: fix genl_bind() invoking bind() after -EPERM
- phy: transfer phy_config_inband() locking responsibility to phylink
- can: xilinx_can: fix use-after-free of transmitted SKB
- hsr: fix lock warnings
- eth:
- igb: fix NULL pointer dereference in ethtool loopback test
- i40e: fix Jumbo Frame support after iPXE boot
- macsec: sync features on RTM_NEWLINK
Previous releases - always broken:
- tunnels: reset the GSO metadata before reusing the skb
- mptcp: make sync_socket_options propagate SOCK_KEEPOPEN
- can: j1939: implement NETDEV_UNREGISTER notification hanidler
- wifi: ath12k: fix WMI TLV header misalignment"
* tag 'net-6.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits)
Revert "net: usb: asix: ax88772: drop phylink use in PM to avoid MDIO runtime PM wakeups"
hsr: hold rcu and dev lock for hsr_get_port_ndev
hsr: use hsr_for_each_port_rtnl in hsr_port_get_hsr
hsr: use rtnl lock when iterating over ports
wifi: nl80211: completely disable per-link stats for now
net: usb: asix: ax88772: drop phylink use in PM to avoid MDIO runtime PM wakeups
net: ethtool: fix wrong type used in struct kernel_ethtool_ts_info
MAINTAINERS: add Phil as netfilter reviewer
netfilter: nf_tables: restart set lookup on base_seq change
netfilter: nf_tables: make nft_set_do_lookup available unconditionally
netfilter: nf_tables: place base_seq in struct net
netfilter: nft_set_rbtree: continue traversal if element is inactive
netfilter: nft_set_pipapo: don't check genbit from packetpath lookups
netfilter: nft_set_bitmap: fix lockdep splat due to missing annotation
can: rcar_can: rcar_can_resume(): fix s2ram with PSCI
can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB
can: j1939: j1939_local_ecu_get(): undo increment when j1939_local_ecu_get() fails
can: j1939: j1939_sk_bind(): call j1939_priv_put() immediately when j1939_local_ecu_get() failed
can: j1939: implement NETDEV_UNREGISTER notification handler
selftests: can: enable CONFIG_CAN_VCAN as a module
...
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Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Pull bpf fixes from Alexei Starovoitov:
"A number of fixes accumulated due to summer vacations
- Fix out-of-bounds dynptr write in bpf_crypto_crypt() kfunc which
was misidentified as a security issue (Daniel Borkmann)
- Update the list of BPF selftests maintainers (Eduard Zingerman)
- Fix selftests warnings with icecc compiler (Ilya Leoshkevich)
- Disable XDP/cpumap direct return optimization (Jesper Dangaard
Brouer)
- Fix unexpected get_helper_proto() result in unusual configuration
BPF_SYSCALL=y and BPF_EVENTS=n (Jiri Olsa)
- Allow fallback to interpreter when JIT support is limited (KaFai
Wan)
- Fix rqspinlock and choose trylock fallback for NMI waiters. Pick
the simplest fix. More involved fix is targeted bpf-next (Kumar
Kartikeya Dwivedi)
- Fix cleanup when tcp_bpf_send_verdict() fails to allocate
psock->cork (Kuniyuki Iwashima)
- Disallow bpf_timer in PREEMPT_RT for now. Proper solution is being
discussed for bpf-next. (Leon Hwang)
- Fix XSK cq descriptor production (Maciej Fijalkowski)
- Tell memcg to use allow_spinning=false path in bpf_timer_init() to
avoid lockup in cgroup_file_notify() (Peilin Ye)
- Fix bpf_strnstr() to handle suffix match cases (Rong Tao)"
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
selftests/bpf: Skip timer cases when bpf_timer is not supported
bpf: Reject bpf_timer for PREEMPT_RT
tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock->cork.
bpf: Tell memcg to use allow_spinning=false path in bpf_timer_init()
bpf: Allow fall back to interpreter for programs with stack size <= 512
rqspinlock: Choose trylock fallback for NMI waiters
xsk: Fix immature cq descriptor production
bpf: Update the list of BPF selftests maintainers
selftests/bpf: Add tests for bpf_strnstr
selftests/bpf: Fix "expression result unused" warnings with icecc
bpf: Fix bpf_strnstr() to handle suffix match cases better
selftests/bpf: Extend crypto_sanity selftest with invalid dst buffer
bpf: Fix out-of-bounds dynptr write in bpf_crypto_crypt
bpf: Check the helper function is valid in get_helper_proto
bpf, cpumap: Disable page_pool direct xdp_return need larger scope
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Merge tag 'linux-can-fixes-for-6.17-20250910' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2025-09-10
The 1st patch is by Alex Tran and fixes the Documentation of the
struct bcm_msg_head.
Davide Caratti's patch enabled the VCAN driver as a module for the
Linux self tests.
Tetsuo Handa contributes 3 patches that fix various problems in the
CAN j1939 protocol.
Anssi Hannula's patch fixes a potential use-after-free in the
xilinx_can driver.
Geert Uytterhoeven's patch fixes the rcan_can's suspend to RAM on
R-Car Gen3 using PSCI.
* tag 'linux-can-fixes-for-6.17-20250910' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
can: rcar_can: rcar_can_resume(): fix s2ram with PSCI
can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB
can: j1939: j1939_local_ecu_get(): undo increment when j1939_local_ecu_get() fails
can: j1939: j1939_sk_bind(): call j1939_priv_put() immediately when j1939_local_ecu_get() failed
can: j1939: implement NETDEV_UNREGISTER notification handler
selftests: can: enable CONFIG_CAN_VCAN as a module
docs: networking: can: change bcm_msg_head frames member to support flexible array
====================
Link: https://patch.msgid.link/20250910162907.948454-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
A proper kernel configuration for running kselftest can be obtained with:
$ yes | make kselftest-merge
Build of 'vcan' driver is currently missing, while the other required knobs
are already there because of net/link_netns.py [1]. Add a config file in
selftests/net/can to store the minimum set of kconfig needed for CAN
selftests.
[1] https://patch.msgid.link/20250219125039.18024-14-shaw.leon@gmail.com
Fixes: 77442ffa83 ("selftests: can: Import tst-filter from can-tests")
Reviewed-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Link: https://patch.msgid.link/fa4c0ea262ec529f25e5f5aa9269d84764c67321.1757516009.git.dcaratti@redhat.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This v0.11.0 version introduces SC2329:
Warn when (non-escaping) functions are never invoked.
Except that, similar to SC2317, ShellCheck is currently unable to figure
out functions that are invoked via trap, or indirectly, when calling
functions via variables. It is then needed to disable this new SC2329.
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250908-net-mptcp-misc-fixes-6-17-rc5-v1-3-5f2168a66079@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
icecc is a compiler wrapper that distributes compile jobs over a build
farm [1]. It works by sending toolchain binaries and preprocessed
source code to remote machines.
Unfortunately using it with BPF selftests causes build failures due to
a clang bug [2]. The problem is that clang suppresses the
-Wunused-value warning if the unused expression comes from a macro
expansion. Since icecc compiles preprocessed source code, this
information is not available. This leads to -Wunused-value false
positives.
obj_new_no_struct() and obj_new_acq() use the bpf_obj_new() macro and
discard the result. arena_spin_lock_slowpath() uses two macros that
produce values and ignores the results. Add (void) casts to explicitly
indicate that this is intentional and suppress the warning.
An alternative solution is to change the macros to not produce values.
This would work today for the arena_spin_lock_slowpath() issue, but in
the future there may appear users who need them. Another potential
solution is to replace these macros with functions. Unfortunately this
would not work, because these macros work with unknown types and
control flow.
[1] https://github.com/icecc/icecream
[2] https://github.com/llvm/llvm-project/issues/142614
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20250829030017.102615-2-iii@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Small cleanup and test extension to probe the bpf_crypto_{encrypt,decrypt}()
kfunc when a bad dst buffer is passed in to assert that an error is returned.
Also, encrypt_sanity() and skb_crypto_setup() were explicit to set the global
status variable to zero before any test, so do the same for decrypt_sanity().
Do not explicitly zero the on-stack err before bpf_crypto_ctx_create() given
the kfunc is expected to do it internally for the success case.
Before kernel fix:
# ./vmtest.sh -- ./test_progs -t crypto
[...]
[ 1.531200] bpf_testmod: loading out-of-tree module taints kernel.
[ 1.533388] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
#87/1 crypto_basic/crypto_release:OK
#87/2 crypto_basic/crypto_acquire:OK
#87 crypto_basic:OK
test_crypto_sanity:PASS:skel open 0 nsec
test_crypto_sanity:PASS:ip netns add crypto_sanity_ns 0 nsec
test_crypto_sanity:PASS:ip -net crypto_sanity_ns -6 addr add face::1/128 dev lo nodad 0 nsec
test_crypto_sanity:PASS:ip -net crypto_sanity_ns link set dev lo up 0 nsec
test_crypto_sanity:PASS:open_netns 0 nsec
test_crypto_sanity:PASS:AF_ALG init fail 0 nsec
test_crypto_sanity:PASS:if_nametoindex lo 0 nsec
test_crypto_sanity:PASS:skb_crypto_setup fd 0 nsec
test_crypto_sanity:PASS:skb_crypto_setup 0 nsec
test_crypto_sanity:PASS:skb_crypto_setup retval 0 nsec
test_crypto_sanity:PASS:skb_crypto_setup status 0 nsec
test_crypto_sanity:PASS:create qdisc hook 0 nsec
test_crypto_sanity:PASS:make_sockaddr 0 nsec
test_crypto_sanity:PASS:attach encrypt filter 0 nsec
test_crypto_sanity:PASS:encrypt socket 0 nsec
test_crypto_sanity:PASS:encrypt send 0 nsec
test_crypto_sanity:FAIL:encrypt status unexpected error: -5 (errno 95)
#88 crypto_sanity:FAIL
Summary: 1/2 PASSED, 0 SKIPPED, 1 FAILED
After kernel fix:
# ./vmtest.sh -- ./test_progs -t crypto
[...]
[ 1.540963] bpf_testmod: loading out-of-tree module taints kernel.
[ 1.542404] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
#87/1 crypto_basic/crypto_release:OK
#87/2 crypto_basic/crypto_acquire:OK
#87 crypto_basic:OK
#88 crypto_sanity:OK
Summary: 2/2 PASSED, 0 SKIPPED, 0 FAILED
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://lore.kernel.org/r/20250829143657.318524-2-daniel@iogearbox.net
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Add test to check the broadcast ethernet destination field is set
correctly.
This test sends a broadcast ping, captures it using tcpdump and
ensures that all bits of the 6 octet ethernet destination address
are correctly set by examining the output capture file.
Co-developed-by: Brett A C Sheffield <bacs@librecast.net>
Signed-off-by: Brett A C Sheffield <bacs@librecast.net>
Signed-off-by: Oscar Maes <oscmaes92@gmail.com>
Link: https://patch.msgid.link/20250902150240.4272-1-oscmaes92@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'vfs-6.17-rc6.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
"fuse:
- Prevent opening of non-regular backing files.
Fuse doesn't support non-regular files anyway.
- Check whether copy_file_range() returns a larger size than
requested.
- Prevent overflow in copy_file_range() as fuse currently only
supports 32-bit sized copies.
- Cache the blocksize value if the server returned a new value as
inode->i_blkbits isn't modified directly anymore.
- Fix i_blkbits handling for iomap partial writes.
By default i_blkbits is set to PAGE_SIZE which causes iomap to mark
the whole folio as uptodate even on a partial write. But fuseblk
filesystems support choosing a blocksize smaller than PAGE_SIZE
risking data corruption. Simply enforce PAGE_SIZE as blocksize for
fuseblk's internal inode for now.
- Prevent out-of-bounds acces in fuse_dev_write() when the number of
bytes to be retrieved is truncated to the fc->max_pages limit.
virtiofs:
- Fix page faults for DAX page addresses.
Misc:
- Tighten file handle decoding from userns.
Check that the decoded dentry itself has a valid idmapping in the
user namespace.
- Fix mount-notify selftests.
- Fix some indentation errors.
- Add an FMODE_ flag to indicate IOCB_HAS_METADATA availability.
This will be moved to an FOP_* flag with a bit more rework needed
for that to happen not suitable for a fix.
- Don't silently ignore metadata for sync read/write.
- Don't pointlessly log warning when reading coredump sysctls"
* tag 'vfs-6.17-rc6.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fuse: virtio_fs: fix page fault for DAX page address
selftests/fs/mount-notify: Fix compilation failure.
fhandle: use more consistent rules for decoding file handle from userns
fuse: Block access to folio overlimit
fuse: fix fuseblk i_blkbits for iomap partial writes
fuse: reflect cached blocksize if blocksize was changed
fuse: prevent overflow in copy_file_range return value
fuse: check if copy_file_range() returns larger than requested size
fuse: do not allow mapping a non-regular backing file
coredump: don't pointlessly check and spew warnings
fs: fix indentation style
block: don't silently ignore metadata for sync read/write
fs: add a FMODE_ flag to indicate IOCB_HAS_METADATA availability
Please enter a commit message to explain why this merge is necessary,
especially if it merges an updated upstream into a topic branch.
This series contains fixes for use-after-free resulted in segfaults
after merging the bpf tree. Also a couple of build and test fixes.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Merge tag 'perf-tools-fixes-for-v6.17-2025-09-05' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tools fixes from Namhyung Kim:
"Fixes for use-after-free that resulted in segfaults after merging the
bpf tree.
Also a couple of build and test fixes"
* tag 'perf-tools-fixes-for-v6.17-2025-09-05' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
perf symbol-elf: Add support for the block argument for libbfd
perf test: Checking BPF metadata collection fails on version string
perf tests: Fix "PE file support" test build
perf bpf-utils: Harden get_bpf_prog_info_linear
perf bpf-utils: Constify bpil_array_desc
perf bpf-event: Fix use-after-free in synthesis
- fix GPIO submenu regression in Kconfig
- fix make clean under tools/gpio/
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Merge tag 'gpio-fixes-for-v6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix GPIO submenu regression in Kconfig
- fix make clean under tools/gpio/
* tag 'gpio-fixes-for-v6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
tools: gpio: remove the include directory on make clean
gpio: fix GPIO submenu in Kconfig
James Clark caught that the BUILD_NONDISTRO=1 build with libbfd was
broken due to an update to the read_build_id function adding a
blocking argument. Add support for this argument by first opening the
file blocking or non-blocking, then switching from bfd_openr to
bfd_fdopenr and passing the opened fd. bfd_fdopenr closes the fd on
error and when bfd_close are called.
Reported-by: James Clark <james.clark@linaro.org>
Closes: https://lore.kernel.org/lkml/20250903-james-perf-read-build-id-fix-v1-2-6a694d0a980f@linaro.org/
Fixes: 2c369d91d0 ("perf symbol: Add blocking argument to filename__read_build_id")
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/20250904161731.1193729-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
commit edf2cadf01 ("perf test: add test for BPF metadata collection")
fails consistently on the version string check. The perf version
string on some of the constant integration test machines contains
characters with special meaning in grep's extended regular expression
matching algorithm. The output of perf version is:
# perf version
perf version 6.17.0-20250814.rc1.git20.24ea63ea3877.63.fc42.s390x+git
#
and the '+' character has special meaning in egrep command.
Also the use of egrep is deprecated.
Change the perf version string check to fixed character matching
and get rid of egrep's warning being deprecated. Use grep -F instead.
Output before:
# perf test -F 102
Checking BPF metadata collection
egrep: warning: egrep is obsolescent; using grep -E
Basic BPF metadata test [Failed invalid output]
102: BPF metadata collection test : FAILED!
#
Output after:
# perf test -F 102
Checking BPF metadata collection
Basic BPF metadata test [Success]
102: BPF metadata collection test : Ok
#
Fixes: edf2cadf01 ("perf test: add test for BPF metadata collection")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Blake Jones <blakejones@google.com>
Link: https://lore.kernel.org/r/20250822122540.4104658-1-tmricht@linux.ibm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
We're reverting the removal of a Sundance driver, a user has appeared.
This makes the PR rather large in terms of LoC.
There's a conspicuous absence of real, user-reported 6.17 issues.
Slightly worried that the summer distracted people from testing.
Previous releases - regressions:
- ax25: properly unshare skbs in ax25_kiss_rcv()
Previous releases - always broken:
- phylink: disable autoneg for interfaces that have no inband,
fix regression on pcs-lynx (NXP LS1088)
- vxlan: fix null-deref when using nexthop objects
- batman-adv: fix OOB read/write in network-coding decode
- icmp: icmp_ndo_send: fix reversing address translation for replies
- tcp: fix socket ref leak in TCP-AO failure handling for IPv6
- mctp:
- mctp_fraq_queue should take ownership of passed skb
- usb: initialise mac header in RX path, avoid WARN
- wifi: mac80211: do not permit 40 MHz EHT operation on 5/6 GHz,
respect device limitations
- wifi: wilc1000: avoid buffer overflow in WID string configuration
- wifi: mt76:
- fix regressions from mt7996 MLO support rework
- fix offchannel handling issues on mt7996
- fix multiple wcid linked list corruption issues
- mt7921: don't disconnect when AP requests switch to a channel which
requires radar detection
- mt7925u: use connac3 tx aggr check in tx complete
- wifi: intel:
- improve validation of ACPI DSM data
- cfg: restore some 1000 series configs
- wifi: ath:
- ath11k: a fix for GTK rekeying
- ath12k: a missed WiFi7 capability (multi-link EMLSR)
- eth: intel:
- ice: fix races in "low latency" firmware interface for Tx timestamps
- idpf: set mac type when adding and removing MAC filters
- i40e: remove racy read access to some debugfs files
Misc:
- Revert "eth: remove the DLink/Sundance (ST201) driver"
- netfilter: conntrack: helper: Replace -EEXIST by -EBUSY, avoid confusing
modprobe
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.17-rc5' 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.
We're reverting the removal of a Sundance driver, a user has appeared.
This makes the PR rather large in terms of LoC.
There's a conspicuous absence of real, user-reported 6.17 issues.
Slightly worried that the summer distracted people from testing.
Previous releases - regressions:
- ax25: properly unshare skbs in ax25_kiss_rcv()
Previous releases - always broken:
- phylink: disable autoneg for interfaces that have no inband, fix
regression on pcs-lynx (NXP LS1088)
- vxlan: fix null-deref when using nexthop objects
- batman-adv: fix OOB read/write in network-coding decode
- icmp: icmp_ndo_send: fix reversing address translation for replies
- tcp: fix socket ref leak in TCP-AO failure handling for IPv6
- mctp:
- mctp_fraq_queue should take ownership of passed skb
- usb: initialise mac header in RX path, avoid WARN
- wifi: mac80211: do not permit 40 MHz EHT operation on 5/6 GHz,
respect device limitations
- wifi: wilc1000: avoid buffer overflow in WID string configuration
- wifi: mt76:
- fix regressions from mt7996 MLO support rework
- fix offchannel handling issues on mt7996
- fix multiple wcid linked list corruption issues
- mt7921: don't disconnect when AP requests switch to a channel
which requires radar detection
- mt7925u: use connac3 tx aggr check in tx complete
- wifi: intel:
- improve validation of ACPI DSM data
- cfg: restore some 1000 series configs
- wifi: ath:
- ath11k: a fix for GTK rekeying
- ath12k: a missed WiFi7 capability (multi-link EMLSR)
- eth: intel:
- ice: fix races in "low latency" firmware interface for Tx timestamps
- idpf: set mac type when adding and removing MAC filters
- i40e: remove racy read access to some debugfs files
Misc:
- Revert "eth: remove the DLink/Sundance (ST201) driver"
- netfilter: conntrack: helper: Replace -EEXIST by -EBUSY, avoid
confusing modprobe"
* tag 'net-6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (99 commits)
phy: mscc: Stop taking ts_lock for tx_queue and use its own lock
selftest: net: Fix weird setsockopt() in bind_bhash.c.
MAINTAINERS: add Sabrina to TLS maintainers
gve: update MAINTAINERS
ppp: fix memory leak in pad_compress_skb
net: xilinx: axienet: Add error handling for RX metadata pointer retrieval
net: atm: fix memory leak in atm_register_sysfs when device_register fail
netfilter: nf_tables: Introduce NFTA_DEVICE_PREFIX
selftests: netfilter: fix udpclash tool hang
ax25: properly unshare skbs in ax25_kiss_rcv()
mctp: return -ENOPROTOOPT for unknown getsockopt options
net/smc: Remove validation of reserved bits in CLC Decline message
ipv4: Fix NULL vs error pointer check in inet_blackhole_dev_init()
net: thunder_bgx: decrement cleanup index before use
net: thunder_bgx: add a missing of_node_put
net: phylink: move PHY interrupt request to non-fail path
net: lockless sock_i_ino()
tools: ynl-gen: fix nested array counting
wifi: wilc1000: avoid buffer overflow in WID string configuration
wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()
...
bind_bhash.c passes (SO_REUSEADDR | SO_REUSEPORT) to setsockopt().
In the asm-generic definition, the value happens to match with the
bare SO_REUSEPORT, (2 | 15) == 15, but not on some arch.
arch/alpha/include/uapi/asm/socket.h:18:#define SO_REUSEADDR 0x0004
arch/alpha/include/uapi/asm/socket.h:24:#define SO_REUSEPORT 0x0200
arch/mips/include/uapi/asm/socket.h:24:#define SO_REUSEADDR 0x0004 /* Allow reuse of local addresses. */
arch/mips/include/uapi/asm/socket.h:33:#define SO_REUSEPORT 0x0200 /* Allow local address and port reuse. */
arch/parisc/include/uapi/asm/socket.h:12:#define SO_REUSEADDR 0x0004
arch/parisc/include/uapi/asm/socket.h:18:#define SO_REUSEPORT 0x0200
arch/sparc/include/uapi/asm/socket.h:13:#define SO_REUSEADDR 0x0004
arch/sparc/include/uapi/asm/socket.h:20:#define SO_REUSEPORT 0x0200
include/uapi/asm-generic/socket.h:12:#define SO_REUSEADDR 2
include/uapi/asm-generic/socket.h:27:#define SO_REUSEPORT 15
Let's pass SO_REUSEPORT only.
Fixes: c35ecb95c4 ("selftests/net: Add test for timing a bind request to a port with a populated bhash entry")
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250903222938.2601522-1-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Yi Chen reports that 'udpclash' loops forever depending on compiler
(and optimization level used); while (x == 1) gets optimized into
for (;;). Add volatile qualifier to avoid that.
While at it, also run it under timeout(1) and fix the resize script
to not ignore the timeout passed as second parameter to insert_flood.
Reported-by: Yi Chen <yiche@redhat.com>
Suggested-by: Yi Chen <yiche@redhat.com>
Fixes: 78a5883635 ("selftests: netfilter: add conntrack clash resolution test case")
Signed-off-by: Florian Westphal <fw@strlen.de>
The blamed commit introduced the concept of split attribute
counting, and later allocating an array to hold them, however
TypeArrayNest wasn't updated to use the new counting variable.
Abbreviated example from tools/net/ynl/generated/nl80211-user.c:
nl80211_if_combination_attributes_parse(...):
unsigned int n_limits = 0;
[...]
ynl_attr_for_each(attr, nlh, yarg->ys->family->hdr_len)
if (type == NL80211_IFACE_COMB_LIMITS)
ynl_attr_for_each_nested(attr2, attr)
dst->_count.limits++;
if (n_limits) {
dst->_count.limits = n_limits;
/* allocate and parse attributes */
}
In the above example n_limits is guaranteed to always be 0,
hence the conditional is unsatisfiable and is optimized out.
This patch changes the attribute counting to use n_limits++ in the
attribute counting loop in the above example.
Fixes: 58da455b31 ("tools: ynl-gen: improve unwind on parsing errors")
Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Link: https://patch.msgid.link/20250902160001.760953-1-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
filename__read_build_id() now takes a blocking/non-blocking argument.
The original behavior of filename__read_build_id() was blocking so add
block=true to fix the build.
Fixes: 2c369d91d0 ("perf symbol: Add blocking argument to filename__read_build_id")
Signed-off-by: James Clark <james.clark@linaro.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250903-james-perf-read-build-id-fix-v1-1-6a694d0a980f@linaro.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Add test cases for VXLAN with FDB nexthop groups, testing both IPv4 and
IPv6. Test basic Tx functionality as well as some corner cases.
Example output:
# ./test_vxlan_nh.sh
TEST: VXLAN FDB nexthop: IPv4 basic Tx [ OK ]
TEST: VXLAN FDB nexthop: IPv6 basic Tx [ OK ]
TEST: VXLAN FDB nexthop: learning [ OK ]
TEST: VXLAN FDB nexthop: IPv4 proxy [ OK ]
TEST: VXLAN FDB nexthop: IPv6 proxy [ OK ]
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20250901065035.159644-4-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In get_bpf_prog_info_linear two calls to bpf_obj_get_info_by_fd are
made, the first to compute memory requirements for a struct perf_bpil
and the second to fill it in. Previously the code would warn when the
second call didn't match the first. Such races can be common place in
things like perf test, whose perf trace tests will frequently load BPF
programs. Rather than a debug message, return actual errors for this
case. Out of paranoia also validate the read bpf_prog_info array
value. Change the type of ptr to avoid mismatched pointer type
compiler warnings. Add some additional debug print outs and sanity
asserts.
Closes: https://lore.kernel.org/lkml/CAP-5=fWJQcmUOP7MuCA2ihKnDAHUCOBLkQFEkQES-1ZZTrgf8Q@mail.gmail.com/
Fixes: 6ac22d036f ("perf bpf: Pull in bpf_program__get_prog_info_linear()")
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250902181713.309797-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
The array's contents is a compile time constant. Constify to make the
code more intention revealing and avoid unintended errors.
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250902181713.309797-3-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Calls to perf_env__insert_bpf_prog_info may fail as a sideband thread
may already have inserted the bpf_prog_info. Such failures may yield
info_linear being freed which then causes use-after-free issues with
the internal bpf_prog_info info struct. Make it so that
perf_env__insert_bpf_prog_info trigger early non-error paths and fix
the use-after-free in perf_event__synthesize_one_bpf_prog. Add proper
return error handling to perf_env__add_bpf_info (that calls
perf_env__insert_bpf_prog_info) and propagate the return value in its
callers.
Closes: https://lore.kernel.org/lkml/CAP-5=fWJQcmUOP7MuCA2ihKnDAHUCOBLkQFEkQES-1ZZTrgf8Q@mail.gmail.com/
Fixes: 03edb7020b ("perf bpf: Fix two memory leakages when calling perf_env__insert_bpf_prog_info()")
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250902181713.309797-2-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
or aren't considered necessary for -stable kernels. 11 of these fixes are
for MM.
This includes a three-patch series from Harry Yoo which fixes an
intermittent boot failure which can occur on x86 systems. And a two-patch
series from Alexander Gordeev which fixes a KASAN crash on S390 systems.
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Merge tag 'mm-hotfixes-stable-2025-09-01-17-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"17 hotfixes. 13 are cc:stable and the remainder address post-6.16
issues or aren't considered necessary for -stable kernels. 11 of these
fixes are for MM.
This includes a three-patch series from Harry Yoo which fixes an
intermittent boot failure which can occur on x86 systems. And a
two-patch series from Alexander Gordeev which fixes a KASAN crash on
S390 systems"
* tag 'mm-hotfixes-stable-2025-09-01-17-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm: fix possible deadlock in kmemleak
x86/mm/64: define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings()
mm: introduce and use {pgd,p4d}_populate_kernel()
mm: move page table sync declarations to linux/pgtable.h
proc: fix missing pde_set_flags() for net proc files
mm: fix accounting of memmap pages
mm/damon/core: prevent unnecessary overflow in damos_set_effective_quota()
kexec: add KEXEC_FILE_NO_CMA as a legal flag
kasan: fix GCC mem-intrinsic prefix with sw tags
mm/kasan: avoid lazy MMU mode hazards
mm/kasan: fix vmalloc shadow memory (de-)population races
kunit: kasan_test: disable fortify string checker on kasan_strings() test
selftests/mm: fix FORCE_READ to read input value correctly
mm/userfaultfd: fix kmap_local LIFO ordering for CONFIG_HIGHPTE
ocfs2: prevent release journal inode after journal shutdown
rust: mm: mark VmaNew as transparent
of_numa: fix uninitialized memory nodes causing kernel panic
Use cfg.remote_ifname for arguments of remote command.
Without this UDP tests fail in NIPA where local interface
is called enp1s0 and remote enp0s4.
Fixes: 1d0dc857b5 ("selftests: drv-net: add checksum tests")
Reviewed-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Link: https://patch.msgid.link/20250830183842.688935-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- CFI failure due to kpti_ng_pgd_alloc() signature mismatch
- Underallocation bug in the SVE ptrace kselftest
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- CFI failure due to kpti_ng_pgd_alloc() signature mismatch
- Underallocation bug in the SVE ptrace kselftest
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
kselftest/arm64: Don't open code SVE_PT_SIZE() in fp-ptrace
arm64: mm: Fix CFI failure due to kpti_ng_pgd_alloc function signature
Linus Torvalds