linux-stable.git/tools, branch v6.6.151 Linux kernel stable tree selftests/clone3: fix wild pointer access of getline due to missing init 2026-08-09T18:21:55+00:00 Chris Gellermann christian.gellermann@codasip.com 2026-07-22T13:02:45+00:00 03bfd969f2f72534091457fbe57114d126a525ce commit 8f6f9fd93cd7a5dd607ad5cd910476dd68fff3ed upstream. Patch series "selftests: Add missing initalization of pointer passed to getline", v2. This patch (of 2): Clone3_set_tid uses getline(&line, ...) in a loop to read the child's process status. The code expects that getline allocates the buffer for the line on the first loop iteration. According to the Open Group Spec[1], char *line has to be null pointer for this: > ssize_t getline(char **restrict lineptr, ...); > If *lineptr is a null pointer or if the object pointed to by *lineptr > is of insufficient size, an object shall be allocated as if by malloc() > or the object shall be reallocated as if by realloc()[...]. However, char *line is only declared, leading to an undefined value that is potentially non-null. In an example run with Musl v1.2.6, the realloc call[2] of getdelim, which implements getline, triggers a segfault: ./run_kselftest.sh --test clone3:clone3_set_tid [ 1366.165898] kselftest: Running tests in clone3 ... [ 1367.799244] clone3_set_tid[811]: unhandled signal 11 code 0x1 at 0x0000000000000000 in libc.so[68184,3fbf69f000+4c000] [ 1367.802808] CPU: 0 UID: 0 PID: 811 Comm: clone3_set_tid Not tainted .. [ 1367.804188] epc: 0x0000003fbf6b0184 [ 1367.804188] ra : 0x0000003fbf6d4664 [ 1367.804188] sp : 0x0000003fce5f2e40 [ 1367.805314] gp : 0x0000002aaab0dfb8 [ 1367.805314] tp : 0x0000003fbf6f14a8 [ 1367.805314] t0 : 0x0000003fbf63d000 ... Looking at the realloc implementation, Musl mallocs for a null pointer memory. But for a non-null pointer, it assumes it's passed a valid pointer to the heap and tries to access its meta-data. This leads to the segfault we see: void *realloc(void *p, size_t n) { if (!p) return malloc(n); if (size_overflows(n)) return 0; struct meta *g = get_meta(p); ... } Fix this by properly initializing the line pointer to NULL. Link: https://lore.kernel.org/20260722130246.2135563-1-christian.gellermann@codasip.com Link: https://lore.kernel.org/20260722130246.2135563-2-christian.gellermann@codasip.com Link: https://pubs.opengroup.org/onlinepubs/9799919799/functions/getline.html [1] Link: https://git.musl-libc.org/cgit/musl/tree/src/stdio/getdelim.c#n38 [2] Fixes: 41585bbeeef9 ("selftests: add tests for clone3() with *set_tid") Signed-off-by: Chris Gellermann <christian.gellermann@codasip.com> Acked-by: David Hildenbrand (arm) <david@kernel.org> Reviewed-by: Lorenzo Stoakes <ljs@kernel.org> Cc: Christian Brauner <brauner@kernel.org> Cc: Liam R. Howlett <liam@infradead.org> Cc: Lorenzo Stoakes <ljs@kernel.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 8f6f9fd93cd7a5dd607ad5cd910476dd68fff3ed upstream.

Patch series "selftests: Add missing initalization of pointer passed to
getline", v2.


This patch (of 2):

Clone3_set_tid uses getline(&line, ...) in a loop to read the child's
process status.  The code expects that getline allocates the buffer for
the line on the first loop iteration.  According to the Open Group
Spec[1], char *line has to be null pointer for this:

> ssize_t getline(char **restrict lineptr, ...);
> If *lineptr is a null pointer or if the object pointed to by *lineptr
> is of insufficient size, an object shall be allocated as if by
malloc()
> or the object shall be reallocated as if by realloc()[...].

However, char *line is only declared, leading to an undefined value that
is potentially non-null.  In an example run with Musl v1.2.6, the realloc
call[2] of getdelim, which implements getline, triggers a segfault:

./run_kselftest.sh --test clone3:clone3_set_tid
[ 1366.165898] kselftest: Running tests in clone3
...
[ 1367.799244] clone3_set_tid[811]: unhandled signal 11 code 0x1 at
0x0000000000000000 in libc.so[68184,3fbf69f000+4c000]
[ 1367.802808] CPU: 0 UID: 0 PID: 811 Comm: clone3_set_tid Not tainted
..
[ 1367.804188]  epc: 0x0000003fbf6b0184
[ 1367.804188]  ra : 0x0000003fbf6d4664
[ 1367.804188]  sp : 0x0000003fce5f2e40
[ 1367.805314]  gp : 0x0000002aaab0dfb8
[ 1367.805314]  tp : 0x0000003fbf6f14a8
[ 1367.805314]  t0 : 0x0000003fbf63d000
...

Looking at the realloc implementation, Musl mallocs for a null pointer
memory.  But for a non-null pointer, it assumes it's passed a valid
pointer to the heap and tries to access its meta-data.  This leads to the
segfault we see:

void *realloc(void *p, size_t n)
{
        if (!p) return malloc(n);
        if (size_overflows(n)) return 0;

        struct meta *g = get_meta(p);
        ...
}

Fix this by properly initializing the line pointer to NULL.

Link: https://lore.kernel.org/20260722130246.2135563-1-christian.gellermann@codasip.com
Link: https://lore.kernel.org/20260722130246.2135563-2-christian.gellermann@codasip.com
Link: https://pubs.opengroup.org/onlinepubs/9799919799/functions/getline.html [1]
Link: https://git.musl-libc.org/cgit/musl/tree/src/stdio/getdelim.c#n38 [2]
Fixes: 41585bbeeef9 ("selftests: add tests for clone3() with *set_tid")
Signed-off-by: Chris Gellermann <christian.gellermann@codasip.com>
Acked-by: David Hildenbrand (arm) <david@kernel.org>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
selftests/mm: fix potential wild pointer access of getline due to missing init 2026-08-09T18:21:55+00:00 Chris Gellermann christian.gellermann@codasip.com 2026-07-22T13:02:46+00:00 7ecb40609362c1877ba56fa2c9acc987c47ec10e commit 9f1d75a4ce04095afdb63d8e540092ff8151dacf upstream. This is another occurrence of using getline where the code assumes that getline allocates memory to store the line, but the pointer passed to it is uninitialized and potentially a non-null pointer. This violates the Open Group Spec[1] and caused a segfault in a similar situation in selftest/clone3/clone3_set_tid. Fix it by initializing the line pointer to NULL. The issue has been found by simply grepping through the selftest code after running into the issue in clone3_set_tid. Whether it segfaults in its current state is unknown to me. But it's good to be addressed due to defensive reasons. Link: https://lore.kernel.org/20260722130246.2135563-3-christian.gellermann@codasip.com Link: https://pubs.opengroup.org/onlinepubs/9799919799/functions/getline.html [1] Fixes: 26b4224d9961 ("selftests: expanding more mlock selftest") Signed-off-by: Chris Gellermann <christian.gellermann@codasip.com> Acked-by: David Hildenbrand (arm) <david@kernel.org> Reviewed-by: Lorenzo Stoakes <ljs@kernel.org> Cc: Christian Brauner <brauner@kernel.org> Cc: Liam R. Howlett <liam@infradead.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Mike Rapoport <rppt@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 9f1d75a4ce04095afdb63d8e540092ff8151dacf upstream.

This is another occurrence of using getline where the code assumes that
getline allocates memory to store the line, but the pointer passed to it
is uninitialized and potentially a non-null pointer.  This violates the
Open Group Spec[1] and caused a segfault in a similar situation in
selftest/clone3/clone3_set_tid.  Fix it by initializing the line pointer
to NULL.

The issue has been found by simply grepping through the selftest code
after running into the issue in clone3_set_tid.  Whether it segfaults in
its current state is unknown to me.  But it's good to be addressed due to
defensive reasons.

Link: https://lore.kernel.org/20260722130246.2135563-3-christian.gellermann@codasip.com
Link: https://pubs.opengroup.org/onlinepubs/9799919799/functions/getline.html [1]
Fixes: 26b4224d9961 ("selftests: expanding more mlock selftest")
Signed-off-by: Chris Gellermann <christian.gellermann@codasip.com>
Acked-by: David Hildenbrand (arm) <david@kernel.org>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
selftests: openvswitch: add config file 2026-08-03T09:15:21+00:00 Matthieu Baerts (NGI0) matttbe@kernel.org 2026-07-10T18:04:42+00:00 54dfe30a562fd3a0471e4e4617359f32af20eb4f [ Upstream commit 441a820ccef9af80a9ac5a4c85b9c396e595967c ] The kselftests doc mentions that a config file should be present "if a test needs specific kernel config options enabled". This selftest requires some kernel config, but no config file was provided. We could say that a sub-target could use the parent's config file, but the kselftests doc doesn't mention anything about that. Plus the net/openvswitch target is the only net target without a config file. Here is a new config file, which is a trimmed version of the net one, with hopefully the minimal required kconfig on top of 'make defconfig'. The Fixes tag points to the introduction of the net/openvswitch target, just to help validating this target on stable kernels. Fixes: 25f16c873fb1 ("selftests: add openvswitch selftest suite") Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Eelco Chaudron <echaudro@redhat.com> Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-2-a2915c294ef5@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 441a820ccef9af80a9ac5a4c85b9c396e595967c ]

The kselftests doc mentions that a config file should be present "if a
test needs specific kernel config options enabled". This selftest
requires some kernel config, but no config file was provided.

We could say that a sub-target could use the parent's config file, but
the kselftests doc doesn't mention anything about that. Plus the
net/openvswitch target is the only net target without a config file.

Here is a new config file, which is a trimmed version of the net one,
with hopefully the minimal required kconfig on top of 'make defconfig'.

The Fixes tag points to the introduction of the net/openvswitch target,
just to help validating this target on stable kernels.

Fixes: 25f16c873fb1 ("selftests: add openvswitch selftest suite")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Eelco Chaudron <echaudro@redhat.com>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-2-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
selftests: af_unix: add USER_NS config 2026-08-03T09:15:21+00:00 Matthieu Baerts (NGI0) matttbe@kernel.org 2026-07-10T18:04:41+00:00 963b4ee31b1b013939db1356c9f1848970752d7e [ Upstream commit f8b1abed736111f914b2c567d9a3db1f71e788e8 ] This is required to use unshare(CLONE_NEWUSER). This has not been seen on NIPA before, because the 'af_unix' tests are executed with the 'net' ones, merging their config files. USER_NS is present in tools/testing/selftests/net/config. This issue is visible when only the af_unix config is used on top of the default one. This is the recommended way to execute selftest targets. Fixes: ac011361bd4f ("af_unix: Add test for sock_diag and UDIAG_SHOW_UID.") Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-1-a2915c294ef5@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit f8b1abed736111f914b2c567d9a3db1f71e788e8 ]

This is required to use unshare(CLONE_NEWUSER).

This has not been seen on NIPA before, because the 'af_unix' tests are
executed with the 'net' ones, merging their config files. USER_NS is
present in tools/testing/selftests/net/config.

This issue is visible when only the af_unix config is used on top of the
default one. This is the recommended way to execute selftest targets.

Fixes: ac011361bd4f ("af_unix: Add test for sock_diag and UDIAG_SHOW_UID.")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-1-a2915c294ef5@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
selftest: af_unix: Add Kconfig file. 2026-08-03T09:15:20+00:00 Kuniyuki Iwashima kuniyu@amazon.com 2024-06-21T02:10:51+00:00 eca8949e4061259572f01600738a3bd996bf0ceb [ Upstream commit 11b006d6896c0471ad29c6f1fb1af606e7ba278f ] diag_uid selftest failed on NIPA where the received nlmsg_type is NLMSG_ERROR [0] because CONFIG_UNIX_DIAG is not set [1] by default and sock_diag_lock_handler() failed to load the module. # # Starting 2 tests from 2 test cases. # # RUN diag_uid.uid.1 ... # # diag_uid.c:159:1:Expected nlh->nlmsg_type (2) == SOCK_DIAG_BY_FAMILY (20) # # 1: Test terminated by assertion # # FAIL diag_uid.uid.1 # not ok 1 diag_uid.uid.1 Let's add all AF_UNIX Kconfig to the config file under af_unix dir so that NIPA consumes it. Fixes: ac011361bd4f ("af_unix: Add test for sock_diag and UDIAG_SHOW_UID.") Link: https://netdev-3.bots.linux.dev/vmksft-net/results/644841/104-diag-uid/stdout [0] Link: https://netdev-3.bots.linux.dev/vmksft-net/results/644841/config [1] Reported-by: Jakub Kicinski <kuba@kernel.org> Closes: https://lore.kernel.org/netdev/20240617073033.0cbb829d@kernel.org/ Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net> Stable-dep-of: f8b1abed7361 ("selftests: af_unix: add USER_NS config") Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit 11b006d6896c0471ad29c6f1fb1af606e7ba278f ]

diag_uid selftest failed on NIPA where the received nlmsg_type is
NLMSG_ERROR [0] because CONFIG_UNIX_DIAG is not set [1] by default
and sock_diag_lock_handler() failed to load the module.

  # # Starting 2 tests from 2 test cases.
  # #  RUN           diag_uid.uid.1 ...
  # # diag_uid.c:159:1:Expected nlh->nlmsg_type (2) == SOCK_DIAG_BY_FAMILY (20)
  # # 1: Test terminated by assertion
  # #          FAIL  diag_uid.uid.1
  # not ok 1 diag_uid.uid.1

Let's add all AF_UNIX Kconfig to the config file under af_unix dir
so that NIPA consumes it.

Fixes: ac011361bd4f ("af_unix: Add test for sock_diag and UDIAG_SHOW_UID.")
Link: https://netdev-3.bots.linux.dev/vmksft-net/results/644841/104-diag-uid/stdout [0]
Link: https://netdev-3.bots.linux.dev/vmksft-net/results/644841/config [1]
Reported-by: Jakub Kicinski <kuba@kernel.org>
Closes: https://lore.kernel.org/netdev/20240617073033.0cbb829d@kernel.org/
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: f8b1abed7361 ("selftests: af_unix: add USER_NS config")
Signed-off-by: Sasha Levin <sashal@kernel.org>
selftests/alsa: Fix memory leak in find_controls error path 2026-08-03T09:15:13+00:00 Malaya Kumar Rout malayarout91@gmail.com 2026-07-04T10:57:36+00:00 367958515c99f17195cee8bb4e3c55e2c1cf7768 [ Upstream commit cb89f0c1aed02eb233c4271f76f830b37e222ff6 ] In find_controls(), card_data is allocated with malloc() but when snd_ctl_open_lconf() fails, the code jumps to next_card without freeing the allocated memory. This results in a memory leak for each card where snd_ctl_open_lconf() fails. Add free(card_data) before goto next_card to ensure proper cleanup of the allocated memory in the error path. Fixes: 5aaf9efffc57 ("kselftest: alsa: Add simplistic test for ALSA mixer controls kselftest") Signed-off-by: Malaya Kumar Rout <malayarout91@gmail.com> Link: https://patch.msgid.link/20260704105736.94874-1-malayarout91@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org> 
[ Upstream commit cb89f0c1aed02eb233c4271f76f830b37e222ff6 ]

In find_controls(), card_data is allocated with malloc() but when
snd_ctl_open_lconf() fails, the code jumps to next_card without
freeing the allocated memory. This results in a memory leak for
each card where snd_ctl_open_lconf() fails.

Add free(card_data) before goto next_card to ensure proper cleanup
of the allocated memory in the error path.

Fixes: 5aaf9efffc57 ("kselftest: alsa: Add simplistic test for ALSA mixer controls kselftest")
Signed-off-by: Malaya Kumar Rout <malayarout91@gmail.com>
Link: https://patch.msgid.link/20260704105736.94874-1-malayarout91@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
selftests/bpf: Add tests for ld_{abs,ind} failure path in subprogs 2026-08-03T09:15:10+00:00 Daniel Borkmann daniel@iogearbox.net 2026-07-22T07:39:08+00:00 a715cf4de28ebd7f58d45507083c0243d350909f commit e0fcb42bc6f41bab2895757d6610616b3820eff7 upstream. Extend the verifier_ld_ind BPF selftests with subprogs containing ld_{abs,ind} and craft the test in a way where the invalid register read is rejected in the fixed case. Also add a success case each, and add additional coverage related to the BTF return type enforcement. # LDLIBS=-static PKG_CONFIG='pkg-config --static' ./vmtest.sh -- ./test_progs -t verifier_ld_ind [...] #611/1 verifier_ld_ind/ld_ind: check calling conv, r1:OK #611/2 verifier_ld_ind/ld_ind: check calling conv, r1 @unpriv:OK #611/3 verifier_ld_ind/ld_ind: check calling conv, r2:OK #611/4 verifier_ld_ind/ld_ind: check calling conv, r2 @unpriv:OK #611/5 verifier_ld_ind/ld_ind: check calling conv, r3:OK #611/6 verifier_ld_ind/ld_ind: check calling conv, r3 @unpriv:OK #611/7 verifier_ld_ind/ld_ind: check calling conv, r4:OK #611/8 verifier_ld_ind/ld_ind: check calling conv, r4 @unpriv:OK #611/9 verifier_ld_ind/ld_ind: check calling conv, r5:OK #611/10 verifier_ld_ind/ld_ind: check calling conv, r5 @unpriv:OK #611/11 verifier_ld_ind/ld_ind: check calling conv, r7:OK #611/12 verifier_ld_ind/ld_ind: check calling conv, r7 @unpriv:OK #611/13 verifier_ld_ind/ld_abs: subprog early exit on ld_abs failure:OK #611/14 verifier_ld_ind/ld_ind: subprog early exit on ld_ind failure:OK #611/15 verifier_ld_ind/ld_abs: subprog with both paths safe:OK #611/16 verifier_ld_ind/ld_ind: subprog with both paths safe:OK #611/17 verifier_ld_ind/ld_abs: reject void return subprog:OK #611/18 verifier_ld_ind/ld_ind: reject void return subprog:OK #611 verifier_ld_ind:OK Summary: 1/18 PASSED, 0 SKIPPED, 0 FAILED Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/r/20260408191242.526279-4-daniel@iogearbox.net Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Philo Lu <lulie@linux.alibaba.com> Signed-off-by: Sasha Levin <sashal@kernel.org> 
commit e0fcb42bc6f41bab2895757d6610616b3820eff7 upstream.

Extend the verifier_ld_ind BPF selftests with subprogs containing
ld_{abs,ind} and craft the test in a way where the invalid register
read is rejected in the fixed case. Also add a success case each,
and add additional coverage related to the BTF return type enforcement.

  # LDLIBS=-static PKG_CONFIG='pkg-config --static' ./vmtest.sh -- ./test_progs -t verifier_ld_ind
  [...]
  #611/1   verifier_ld_ind/ld_ind: check calling conv, r1:OK
  #611/2   verifier_ld_ind/ld_ind: check calling conv, r1 @unpriv:OK
  #611/3   verifier_ld_ind/ld_ind: check calling conv, r2:OK
  #611/4   verifier_ld_ind/ld_ind: check calling conv, r2 @unpriv:OK
  #611/5   verifier_ld_ind/ld_ind: check calling conv, r3:OK
  #611/6   verifier_ld_ind/ld_ind: check calling conv, r3 @unpriv:OK
  #611/7   verifier_ld_ind/ld_ind: check calling conv, r4:OK
  #611/8   verifier_ld_ind/ld_ind: check calling conv, r4 @unpriv:OK
  #611/9   verifier_ld_ind/ld_ind: check calling conv, r5:OK
  #611/10  verifier_ld_ind/ld_ind: check calling conv, r5 @unpriv:OK
  #611/11  verifier_ld_ind/ld_ind: check calling conv, r7:OK
  #611/12  verifier_ld_ind/ld_ind: check calling conv, r7 @unpriv:OK
  #611/13  verifier_ld_ind/ld_abs: subprog early exit on ld_abs failure:OK
  #611/14  verifier_ld_ind/ld_ind: subprog early exit on ld_ind failure:OK
  #611/15  verifier_ld_ind/ld_abs: subprog with both paths safe:OK
  #611/16  verifier_ld_ind/ld_ind: subprog with both paths safe:OK
  #611/17  verifier_ld_ind/ld_abs: reject void return subprog:OK
  #611/18  verifier_ld_ind/ld_ind: reject void return subprog:OK
  #611     verifier_ld_ind:OK
  Summary: 1/18 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20260408191242.526279-4-daniel@iogearbox.net
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Philo Lu <lulie@linux.alibaba.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
selftests/bpf: Add simple strscpy() implementation 2026-07-24T14:03:54+00:00 Ihor Solodrai ihor.solodrai@linux.dev 2026-07-24T07:48:34+00:00 bd37e81cb475c0fa6d4e99a87d16e81b53bbe561 commit 63c49efc987afefc6b9bb7de083eb8748e0b1789 upstream. Replace bpf_strlcpy() in bpf_util.h with a sized_strscpy(), which is a simplified sized_strscpy() from the kernel (lib/string.c [1]). It: * takes a count (destination size) parameter * guarantees NULL-termination * returns the number of characters copied or -E2BIG Re-define strscpy macro similar to in-kernel implementation [2]: allow the count parameter to be optional. Add #ifdef-s to tools/include/linux/args.h, as they may be defined in other system headers (for example, __CONCAT in sys/cdefs.h). Fixup the single existing bpf_strlcpy() call in cgroup_helpers.c [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/lib/string.c?h=v6.19#n113 [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/linux/string.h?h=v6.19#n91 Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Link: https://lore.kernel.org/r/20260223190736.649171-2-ihor.solodrai@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org> Stable-dep-of: 55ffbe8a15b1 ("selftests/bpf: Initialize operation name before use") Signed-off-by: Shung-Hsi Yu <shung-hsi.yu@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 63c49efc987afefc6b9bb7de083eb8748e0b1789 upstream.

Replace bpf_strlcpy() in bpf_util.h with a sized_strscpy(), which is a
simplified sized_strscpy() from the kernel (lib/string.c [1]). It:
  * takes a count (destination size) parameter
  * guarantees NULL-termination
  * returns the number of characters copied or -E2BIG

Re-define strscpy macro similar to in-kernel implementation [2]: allow
the count parameter to be optional.

Add #ifdef-s to tools/include/linux/args.h, as they may be defined in
other system headers (for example, __CONCAT in sys/cdefs.h).

Fixup the single existing bpf_strlcpy() call in cgroup_helpers.c

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/lib/string.c?h=v6.19#n113
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/linux/string.h?h=v6.19#n91

Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev>
Link: https://lore.kernel.org/r/20260223190736.649171-2-ihor.solodrai@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Stable-dep-of: 55ffbe8a15b1 ("selftests/bpf: Initialize operation name before use")
Signed-off-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
tools/testing: add linux/args.h header and fix radix, VMA tests 2026-07-24T14:03:53+00:00 Lorenzo Stoakes lorenzo.stoakes@oracle.com 2026-07-24T07:48:33+00:00 8fa926d33f082ece48a5638a64708dfa9e91b807 commit 9a6a6a3191574a01dcf7a7d9385246d7bc8736bc upstream. Commit 857d18f23ab1 ("cleanup: Introduce ACQUIRE() and ACQUIRE_ERR() for conditional locks") accidentally broke the radix tree, VMA userland tests by including linux/args.h which is not present in the tools/include directory. This patch copies this over and adds an #ifdef block to avoid duplicate __CONCAT declaration in conflict with system headers when we ultimately include this. Link: https://lkml.kernel.org/r/20250811052654.33286-1-lorenzo.stoakes@oracle.com Fixes: 857d18f23ab1 ("cleanup: Introduce ACQUIRE() and ACQUIRE_ERR() for conditional locks") Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Jann Horn <jannh@google.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Stable-dep-of: 63c49efc987a ("selftests/bpf: Add simple strscpy() implementation") [shung-hsi.yu: tools/testing/shared/linux/idr.h was tools/testing/radix-tree/linux/idr.h before commit 579d8dab47 ("tools: separate out shared radix-tree components"). ] Signed-off-by: Shung-Hsi Yu <shung-hsi.yu@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 9a6a6a3191574a01dcf7a7d9385246d7bc8736bc upstream.

Commit 857d18f23ab1 ("cleanup: Introduce ACQUIRE() and ACQUIRE_ERR() for
conditional locks") accidentally broke the radix tree, VMA userland tests
by including linux/args.h which is not present in the tools/include
directory.

This patch copies this over and adds an #ifdef block to avoid duplicate
__CONCAT declaration in conflict with system headers when we ultimately
include this.

Link: https://lkml.kernel.org/r/20250811052654.33286-1-lorenzo.stoakes@oracle.com
Fixes: 857d18f23ab1 ("cleanup: Introduce ACQUIRE() and ACQUIRE_ERR() for conditional locks")
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Jann Horn <jannh@google.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Stable-dep-of: 63c49efc987a ("selftests/bpf: Add simple strscpy() implementation")
[shung-hsi.yu: tools/testing/shared/linux/idr.h was
tools/testing/radix-tree/linux/idr.h before commit 579d8dab47 ("tools: separate
out shared radix-tree components"). ]
Signed-off-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
selftests/hid: ensure CKI can compile our new tests on old kernels 2026-07-24T14:03:53+00:00 Benjamin Tissoires bentiss@kernel.org 2024-07-01T12:39:49+00:00 9f5340275767198a4c252acdd2caeb03eb90ce99 commit fcdf830ea634cf0ee6543b6cd6a4932f92464fc7 upstream. In the same way than commit ae7487d112cf ("selftests/hid: ensure we can compile the tests on kernels pre-6.3") we should expose struct hid_bpf_ops when it's not available in vmlinux.h. So unexpose an eventual struct hid_bpf_ops, include vmlinux.h, and re-export struct hid_bpf_ops. Fixes: d7696738d66b ("selftests/hid: convert the hid_bpf selftests with struct_ops") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/r/202406270328.bscLN1IF-lkp@intel.com/ Link: https://patch.msgid.link/20240701-fix-cki-v2-1-20564e2e1393@kernel.org Signed-off-by: Benjamin Tissoires <bentiss@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit fcdf830ea634cf0ee6543b6cd6a4932f92464fc7 upstream.

In the same way than commit ae7487d112cf ("selftests/hid: ensure we can
compile the tests on kernels pre-6.3") we should expose struct hid_bpf_ops
when it's not available in vmlinux.h.

So unexpose an eventual struct hid_bpf_ops, include vmlinux.h, and
re-export struct hid_bpf_ops.

Fixes: d7696738d66b ("selftests/hid: convert the hid_bpf selftests with struct_ops")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/r/202406270328.bscLN1IF-lkp@intel.com/
Link: https://patch.msgid.link/20240701-fix-cki-v2-1-20564e2e1393@kernel.org
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>