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| author | Lizhi Xu <lizhi.xu@windriver.com> | 2025-06-16 09:31:40 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-20 18:36:32 +0200 |
| commit | 3f20350dd750ef22859df043fdb53ee95ddaa1b4 (patch) | |
| tree | 2828ff088e27335fafa6d4e64fc9195e3b02d03d /include/net/aligned_data.h | |
| parent | e66afe9f0d9270151bd4492f71f9ba9f4239fe0f (diff) | |
ocfs2: reset folio to NULL when get folio fails
commit 2ae826799932ff89409f56636ad3c25578fe7cf5 upstream.
The reproducer uses FAULT_INJECTION to make memory allocation fail, which
causes __filemap_get_folio() to fail, when initializing w_folios[i] in
ocfs2_grab_folios_for_write(), it only returns an error code and the value
of w_folios[i] is the error code, which causes
ocfs2_unlock_and_free_folios() to recycle the invalid w_folios[i] when
releasing folios.
Link: https://lkml.kernel.org/r/20250616013140.3602219-1-lizhi.xu@windriver.com
Reported-by: syzbot+c2ea94ae47cd7e3881ec@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=c2ea94ae47cd7e3881ec
Signed-off-by: Lizhi Xu <lizhi.xu@windriver.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>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net/aligned_data.h')
0 files changed, 0 insertions, 0 deletions