btrfs: ref-verify: free ref cache before clearing mount opt
As clearing REF_VERIFY mount option indicates there were some errors in a ref-verify process, a ref cache is not relevant anymore and should be freed. btrfs_free_ref_cache() requires REF_VERIFY option being set so call it just before clearing the mount option. Found by Linux Verification Center (linuxtesting.org) with Syzkaller. Reported-by:<syzbot+be14ed7728594dc8bd42@syzkaller.appspotmail.com> Fixes: fd708b81 ("Btrfs: add a extent ref verify tool") CC: stable@vger.kernel.org # 5.4+ Closes: https://lore.kernel.org/lkml/000000000000e5a65c05ee832054@google.com/ Reported-by:
<syzbot+c563a3c79927971f950f@syzkaller.appspotmail.com> Closes: https://lore.kernel.org/lkml/0000000000007fe09705fdc6086c@google.com/ Reviewed-by:
Anand Jain <anand.jain@oracle.com> Signed-off-by:
Fedor Pchelkin <pchelkin@ispras.ru> Reviewed-by:
David Sterba <dsterba@suse.com> Signed-off-by:
David Sterba <dsterba@suse.com>
parent
6ff09b6b
Please register or sign in to comment