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* [syzbot] [bluetooth?] WARNING in hci_send_acl
@ 2023-03-03 21:16 syzbot
  0 siblings, 0 replies; only message in thread
From: syzbot @ 2023-03-03 21:16 UTC (permalink / raw)
  To: davem, edumazet, johan.hedberg, kuba, linux-bluetooth,
	linux-kernel, luiz.dentz, marcel, netdev, pabeni, syzkaller-bugs

Hello,

syzbot found the following issue on:

HEAD commit:    2ebd1fbb946d Merge branch 'for-next/core' into for-kernelci
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=12aad518c80000
kernel config:  https://syzkaller.appspot.com/x/.config?x=3519974f3f27816d
dashboard link: https://syzkaller.appspot.com/bug?extid=90c0638c7b912d27bfe7
compiler:       Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/16985cc7a274/disk-2ebd1fbb.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/fd3452567115/vmlinux-2ebd1fbb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/c75510922212/Image-2ebd1fbb.gz.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+90c0638c7b912d27bfe7@syzkaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 1 PID: 22417 at kernel/workqueue.c:1438 __queue_work+0x11e0/0x1484 kernel/workqueue.c:1438
Modules linked in:
CPU: 1 PID: 22417 Comm: syz-executor.0 Not tainted 6.2.0-syzkaller-18300-g2ebd1fbb946d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __queue_work+0x11e0/0x1484 kernel/workqueue.c:1438
lr : __queue_work+0x11e0/0x1484 kernel/workqueue.c:1438
sp : ffff80002bf37250
x29: ffff80002bf37290 x28: 0000000000000008 x27: 0000000000002000
x26: ffff0000ce923800 x25: dfff800000000000 x24: ffff0000ce9239c0
x23: 0000000000000000 x22: ffff00012c509b48 x21: 1fffe000258a1369
x20: 00000000000b0012 x19: ffff00012df8cd10 x18: ffff80002bf372e0
x17: ffff800015b8d000 x16: ffff80000804d18c x15: 0000000000000000
x14: 1ffff00002b720af x13: dfff800000000000 x12: 0000000000000001
x11: ff80800008220790 x10: 0000000000000000 x9 : ffff800008220790
x8 : ffff00012c509b40 x7 : ffff8000105bcce8 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80000821f4ec
x2 : ffff00012df8cd10 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 __queue_work+0x11e0/0x1484 kernel/workqueue.c:1438
 queue_work_on+0x9c/0x128 kernel/workqueue.c:1545
 queue_work include/linux/workqueue.h:503 [inline]
 hci_send_acl+0x86c/0xb54 net/bluetooth/hci_core.c:3183
 l2cap_do_send+0x238/0x350
 l2cap_chan_send+0x36c/0x2044
 l2cap_sock_sendmsg+0x184/0x2a8 net/bluetooth/l2cap_sock.c:1172
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 ____sys_sendmsg+0x558/0x844 net/socket.c:2479
 ___sys_sendmsg net/socket.c:2533 [inline]
 __sys_sendmmsg+0x318/0x7d8 net/socket.c:2619
 __do_sys_sendmmsg net/socket.c:2648 [inline]
 __se_sys_sendmmsg net/socket.c:2645 [inline]
 __arm64_sys_sendmmsg+0xa0/0xbc net/socket.c:2645
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 524
hardirqs last  enabled at (523): [<ffff80001243d19c>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (523): [<ffff80001243d19c>] _raw_spin_unlock_irqrestore+0x44/0xa4 kernel/locking/spinlock.c:194
hardirqs last disabled at (524): [<ffff80000821f4d8>] queue_work_on+0x50/0x128 kernel/workqueue.c:1542
softirqs last  enabled at (514): [<ffff80001058d02c>] spin_unlock_bh include/linux/spinlock.h:395 [inline]
softirqs last  enabled at (514): [<ffff80001058d02c>] release_sock+0x178/0x1cc net/core/sock.c:3497
softirqs last disabled at (512): [<ffff80001058cef0>] spin_lock_bh include/linux/spinlock.h:355 [inline]
softirqs last disabled at (512): [<ffff80001058cef0>] release_sock+0x3c/0x1cc net/core/sock.c:3484
---[ end trace 0000000000000000 ]---


---
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2023-03-03 21:16 [syzbot] [bluetooth?] WARNING in hci_send_acl syzbot

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