mirror of
https://github.com/torvalds/linux
synced 2024-10-06 19:34:19 +00:00
f2fs: fix double free of f2fs_sb_info
kill_f2fs_super() is called even if f2fs_fill_super() fails.
f2fs_fill_super() frees the struct f2fs_sb_info, so it must set
sb->s_fs_info to NULL to prevent it from being freed again.
Fixes: 275dca4630
("f2fs: move release of block devices to after kill_block_super()")
Reported-by: <syzbot+8f477ac014ff5b32d81f@syzkaller.appspotmail.com>
Closes: https://lore.kernel.org/lkml/0000000000006cb174060ec34502@google.com
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/linux-f2fs-devel/20240113005747.38887-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
This commit is contained in:
parent
38814330fe
commit
c919330dd5
|
@ -4880,6 +4880,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
|
|||
if (sbi->s_chksum_driver)
|
||||
crypto_free_shash(sbi->s_chksum_driver);
|
||||
kfree(sbi);
|
||||
sb->s_fs_info = NULL;
|
||||
|
||||
/* give only one another chance */
|
||||
if (retry_cnt > 0 && skip_recovery) {
|
||||
|
|
Loading…
Reference in a new issue