syzbot suspects this issue was fixed by commit: commit 1bff51ea59a9afb67d2dd78518ab0582a54a472c Author: Wang ShaoBo <bobo.shaobowang(a)huawei.com> Date: Wed Sep 1 00:35:37 2021 +0000 Bluetooth: fix use-after-free error in lock_sock_nested() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=134c881eb00000 start commit: 73b7a6047971 net: dsa: bcm_sf2: support BCM4908's integrat.. git tree: net-next kernel config: https://syzkaller.appspot.com/x/.config?x=9ce34124da4c882b dashboard link: https://syzkaller.appspot.com/bug?extid=a41dfef1d2e04910eb2e syz repro: https://syzkaller.appspot.com/x/repro.syz?x=166ee4cf500000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1337172f500000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: Bluetooth: fix use-after-free error in lock_sock_nested() For information about bisection process see: https://goo.gl/tpsmEJ#bisection