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ocfs2: relax BUG() to ocfs2_error() in __ocfs2_move_extent()

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In '__ocfs2_move_extent()', relax 'BUG()' to 'ocfs2_error()' just
to avoid crashing the whole kernel due to a filesystem corruption.

Fixes: 8f603e567a ("Ocfs2/move_extents: move a range of extent.")
Link: https://lkml.kernel.org/r/20251009102349.181126-2-dmantipov@yandex.ru
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Closes: https://syzkaller.appspot.com/bug?extid=727d161855d11d81e411
Reported-by: syzbot+727d161855d11d81e411@syzkaller.appspotmail.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>
This commit is contained in:
Dmitry Antipov
2025-10-09 13:23:49 +03:00
committed by Andrew Morton
parent 41a5e87770
commit 8a7d58845f
1 changed files with 7 additions and 1 deletions
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8
fs/ocfs2/move_extents.c
View File

@@ -98,7 +98,13 @@ static int __ocfs2_move_extent(handle_t *handle,
rec = &el->l_recs[index];
BUG_ON(ext_flags != rec->e_flags);
if (ext_flags != rec->e_flags) {
ret = ocfs2_error(inode->i_sb,
"Inode %llu has corrupted extent %d with flags 0x%x at cpos %u\n",
(unsigned long long)ino, index, rec->e_flags, cpos);
goto out;
}
/*
* after moving/defraging to new location, the extent is not going
* to be refcounted anymore.