diff options
| author | Ivan Pravdin <ipravdin.official@gmail.com> | 2025-07-07 20:10:09 -0400 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-07-19 19:08:27 -0700 |
| commit | 44acc46d182ff36d40cea69db3875440fab72ba5 (patch) | |
| tree | 64ca2da2b65fbdf8fd96fb931297a2851ca2f751 /tools/perf/scripts/python/netdev-times.py | |
| parent | 988f451ecb17c359cb34e360fce82039942de7bb (diff) | |
ocfs2: avoid NULL pointer dereference in dx_dir_lookup_rec()
When a directory entry is not found, ocfs2_dx_dir_lookup_rec() prints an
error message that unconditionally dereferences the 'rec' pointer.
However, if 'rec' is NULL, this leads to a NULL pointer dereference and a
kernel panic.
Add an explicit check empty extent list to avoid dereferencing NULL
'rec' pointer.
Link: https://lkml.kernel.org/r/20250708001009.372263-1-ipravdin.official@gmail.com
Reported-by: syzbot+20282c1b2184a857ac4c@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/67cd7e29.050a0220.e1a89.0007.GAE@google.com/
Signed-off-by: Ivan Pravdin <ipravdin.official@gmail.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/netdev-times.py')
0 files changed, 0 insertions, 0 deletions