Re: [syzbot] [fs?] KASAN: slab-out-of-bounds Write in __put_unused_fd

From: syzbot
Date: Tue Dec 31 2024 - 17:15:12 EST


syzbot has bisected this issue to:

commit ebe559609d7829b52c6642b581860760984faf9d
Author: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Date: Fri Nov 15 15:30:14 2024 +0000

fs: get rid of __FMODE_NONOTIFY kludge

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=113e5818580000
start commit: 8155b4ef3466 Add linux-next specific files for 20241220
git tree: linux-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=133e5818580000
console output: https://syzkaller.appspot.com/x/log.txt?x=153e5818580000
kernel config: https://syzkaller.appspot.com/x/.config?x=9c90bb7161a56c88
dashboard link: https://syzkaller.appspot.com/bug?extid=6a3aa63412255587b21b
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10e670b0580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13f42ac4580000

Reported-by: syzbot+6a3aa63412255587b21b@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: ebe559609d78 ("fs: get rid of __FMODE_NONOTIFY kludge")

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