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authorLizhi Xu <lizhi.xu@windriver.com>2024-09-02 10:36:36 +0800
committerAndrew Morton <akpm@linux-foundation.org>2024-09-09 15:15:54 -0700
commit33b525cef4cff49e216e4133cc48452e11c0391e (patch)
tree99182cc87b673503c3b28031086409fcaaad4ef9 /mm
parentc03a82b4a0c935774afa01fd6d128b444fd930a1 (diff)
ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate
When doing cleanup, if flags without OCFS2_BH_READAHEAD, it may trigger NULL pointer dereference in the following ocfs2_set_buffer_uptodate() if bh is NULL. Link: https://lkml.kernel.org/r/20240902023636.1843422-3-joseph.qi@linux.alibaba.com Fixes: cf76c78595ca ("ocfs2: don't put and assigning null to bh allocated outside") Signed-off-by: Lizhi Xu <lizhi.xu@windriver.com> Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com> Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com> Reported-by: Heming Zhao <heming.zhao@suse.com> Suggested-by: Heming Zhao <heming.zhao@suse.com> Cc: <stable@vger.kernel.org> [4.20+] Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Jun Piao <piaojun@huawei.com> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Mark Fasheh <mark@fasheh.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
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