Re: [syzbot] [xfs?] KASAN: use-after-free Read in xfs_btree_lookup_get_block

From: syzbot
Date: Sat May 13 2023 - 13:29:59 EST


syzbot suspects this issue was fixed by commit:

commit 22ed903eee23a5b174e240f1cdfa9acf393a5210
Author: Darrick J. Wong <djwong@xxxxxxxxxx>
Date: Wed Apr 12 05:49:23 2023 +0000

xfs: verify buffer contents when we skip log replay

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12710f7a280000
start commit: 1b929c02afd3 Linux 6.2-rc1
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=68e0be42c8ee4bb4
dashboard link: https://syzkaller.appspot.com/bug?extid=7e9494b8b399902e994e
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=172ff2e4480000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11715ea8480000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: xfs: verify buffer contents when we skip log replay

For information about bisection process see: https://goo.gl/tpsmEJ#bisection