Re: [syzbot] [reiserfs?] KASAN: use-after-free Read in reiserfs_release_objectid

From: syzbot
Date: Mon Feb 12 2024 - 06:07:18 EST


syzbot suspects this issue was fixed by commit:

commit 6f861765464f43a71462d52026fbddfc858239a5
Author: Jan Kara <jack@xxxxxxx>
Date: Wed Nov 1 17:43:10 2023 +0000

fs: Block writes to mounted block devices

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14df7cec180000
start commit: ca57f02295f1 afs: Fix fileserver probe RTT handling
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=2325e409a9a893e1
dashboard link: https://syzkaller.appspot.com/bug?extid=909a2191a4352fd77d25
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1563673d880000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=134d9425880000

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

#syz fix: fs: Block writes to mounted block devices

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