Hello, syzbot found the following issue on: HEAD commit: 64466c407a73 Merge git://git.kernel.org/pub/scm/linux/kern.. git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=15c40b0d480000 kernel config: https://syzkaller.appspot.com/x/.config?x=23330449ad10b66f dashboard link: https://syzkaller.appspot.com/bug?extid=a4a0e2f4827c045b6ee8 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/1923043fad30/disk-64466c40.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/16ffd43dda86/vmlinux-64466c40.xz kernel image: https://storage.googleapis.com/syzbot-assets/3937fdc798ac/bzImage-64466c40.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a4a0e2f4827c045b6ee8@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8068 at kernel/workqueue.c:1438 __queue_work+0xf70/0x13b0 kernel/workqueue.c:1438 Modules linked in: CPU: 1 PID: 8068 Comm: syz-executor.4 Not tainted 6.2.0-rc5-syzkaller-00144-g64466c407a73 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:__queue_work+0xf70/0x13b0 kernel/workqueue.c:1438 Code: e0 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8 28 e5 7c 00 8b 5b 2c 31 ff 83 e3 20 89 de e8 b9 d3 2e 00 85 db 75 42 e8 00 d7 2e 00 <0f> 0b e9 7e f7 ff ff e8 f4 d6 2e 00 0f 0b e9 10 f7 ff ff e8 e8 d6 RSP: 0018:ffffc90003717750 EFLAGS: 00010012 RAX: 00000000000005a3 RBX: 0000000000000000 RCX: ffffc9000cc31000 RDX: 0000000000040000 RSI: ffffffff81528af0 RDI: 0000000000000005 RBP: 0000000000000008 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88802a7f0d10 R13: 0000000000000000 R14: ffff888020bd0000 R15: ffff888020bd0000 FS: 00007f6fd3c8b700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555573e2708 CR3: 000000001c8e9000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> queue_work_on+0xf2/0x110 kernel/workqueue.c:1545 l2cap_do_send+0x318/0x480 net/bluetooth/l2cap_core.c:1018 l2cap_chan_send+0xd3c/0x2cb0 net/bluetooth/l2cap_core.c:2746 l2cap_sock_sendmsg+0x220/0x300 net/bluetooth/l2cap_sock.c:1172 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xd3/0x120 net/socket.c:734 ____sys_sendmsg+0x334/0x8c0 net/socket.c:2476 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2530 __sys_sendmmsg+0x18f/0x460 net/socket.c:2616 __do_sys_sendmmsg net/socket.c:2645 [inline] __se_sys_sendmmsg net/socket.c:2642 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2642 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f6fd2e8c0c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6fd3c8b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f6fd2fabf80 RCX: 00007f6fd2e8c0c9 RDX: 0400000000000140 RSI: 00000000200039c0 RDI: 0000000000000004 RBP: 00007f6fd2ee7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000048048 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc66d827ff R14: 00007f6fd3c8b300 R15: 0000000000022000 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
