Re: [syzbot] [bluetooth?] KASAN: slab-use-after-free Write in hci_conn_drop (2)

From: syzbot
Date: Sat Feb 17 2024 - 14:33:16 EST


syzbot has bisected this issue to:

commit 456561ba8e495e9320c1f304bf1cd3d1043cbe7b
Author: Jonas Dreßler <verdre@xxxxxxx>
Date: Tue Feb 6 11:08:13 2024 +0000

Bluetooth: hci_conn: Only do ACL connections sequentially

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=132137fc180000
start commit: 2c3b09aac00d Add linux-next specific files for 20240214
git tree: linux-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=10a137fc180000
console output: https://syzkaller.appspot.com/x/log.txt?x=172137fc180000
kernel config: https://syzkaller.appspot.com/x/.config?x=176d2dcbf8ba7017
dashboard link: https://syzkaller.appspot.com/bug?extid=1683f76f1b20b826de67
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1765258a180000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16c27a58180000

Reported-by: syzbot+1683f76f1b20b826de67@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 456561ba8e49 ("Bluetooth: hci_conn: Only do ACL connections sequentially")

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