syzbot


WARNING in hci_send_acl

Status: auto-obsoleted due to no activity on 2025/03/27 11:45
Reported-by: syzbot+a56aa57cb409306bff29@syzkaller.appspotmail.com
First crash: 197d, last: 105d
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in hci_send_acl 1 323d 323d 0/3 auto-obsoleted due to no activity on 2024/08/22 00:38
upstream WARNING in hci_send_acl (2) bluetooth 1 510d 506d 0/28 auto-obsoleted due to no activity on 2024/02/16 03:24
upstream WARNING in hci_send_acl bluetooth 1 764d 760d 0/28 auto-obsoleted due to no activity on 2023/06/27 21:08
upstream WARNING in hci_send_acl (3) bluetooth 1 259d 255d 0/28 auto-obsoleted due to no activity on 2024/10/24 22:48

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4867 at kernel/workqueue.c:1453 __queue_work+0xee4/0x114c kernel/workqueue.c:1453
Modules linked in:
CPU: 1 PID: 4867 Comm: syz.4.206 Not tainted 5.15.174-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __queue_work+0xee4/0x114c kernel/workqueue.c:1453
lr : __queue_work+0xee4/0x114c kernel/workqueue.c:1453
sp : ffff8000206072d0
x29: ffff800020607310 x28: 1fffe00018290359 x27: 0000000000000008
x26: ffff0000c2f97000 x25: dfff800000000000 x24: ffff0000c2f971c0
x23: 1fffe000185f2e38 x22: ffff0000cc57b688 x21: 1fffe000198af6d1
x20: 00000000000b0012 x19: ffff0000c81c0b78 x18: 0000000000000000
x17: 0000000000000002 x16: ffff8000082ec934 x15: 0000000000000001
x14: 1ffff0000296e06c x13: dfff800000000000 x12: 0000000000080000
x11: 000000000007ffff x10: ffff8000261d9000 x9 : 0000000000080000
x8 : ffff800008206d14 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800008205d3c
x2 : ffff0000c81c0b78 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 __queue_work+0xee4/0x114c kernel/workqueue.c:1453
 queue_work_on+0xc4/0x17c kernel/workqueue.c:1559
 queue_work include/linux/workqueue.h:512 [inline]
 hci_send_acl+0x7a8/0xaa4 net/bluetooth/hci_core.c:4439
 l2cap_do_send+0x238/0x350
 l2cap_chan_send+0x190c/0x1e5c
 l2cap_sock_sendmsg+0x184/0x2a8 net/bluetooth/l2cap_sock.c:1173
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 ____sys_sendmsg+0x584/0x870 net/socket.c:2436
 ___sys_sendmsg+0x214/0x294 net/socket.c:2490
 __sys_sendmmsg+0x23c/0x648 net/socket.c:2576
 __do_sys_sendmmsg net/socket.c:2605 [inline]
 __se_sys_sendmmsg net/socket.c:2602 [inline]
 __arm64_sys_sendmmsg+0xa0/0xbc net/socket.c:2602
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 52286
hardirqs last  enabled at (52285): [<ffff800011c2534c>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last  enabled at (52285): [<ffff800011c2534c>] _raw_spin_unlock_irqrestore+0xac/0x158 kernel/locking/spinlock.c:194
hardirqs last disabled at (52286): [<ffff800008205d30>] queue_work_on+0x7c/0x17c kernel/workqueue.c:1556
softirqs last  enabled at (52282): [<ffff80000fefea64>] spin_unlock_bh include/linux/spinlock.h:408 [inline]
softirqs last  enabled at (52282): [<ffff80000fefea64>] release_sock+0x1e4/0x270 net/core/sock.c:3276
softirqs last disabled at (52280): [<ffff80000fefe8bc>] spin_lock_bh include/linux/spinlock.h:368 [inline]
softirqs last disabled at (52280): [<ffff80000fefe8bc>] release_sock+0x3c/0x270 net/core/sock.c:3263
---[ end trace 382e1e968d348ae3 ]---

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/12/17 11:44 linux-5.15.y 963e654022cc f93b2b55 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hci_send_acl
2024/09/16 21:05 linux-5.15.y 3a5928702e71 c673ca06 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in hci_send_acl
* Struck through repros no longer work on HEAD.