syzbot


WARNING in hci_send_acl (2)

Status: auto-obsoleted due to no activity on 2024/02/16 03:24
Subsystems: bluetooth
[Documentation on labels]
Reported-by: syzbot+298932bae5cf3522b729@syzkaller.appspotmail.com
First crash: 192d, last: 192d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [bluetooth?] WARNING in hci_send_acl (2) 0 (1) 2023/11/12 03:34
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in hci_send_acl 1 4d17h 4d17h 0/3 upstream: reported on 2024/05/14 00:38
upstream WARNING in hci_send_acl bluetooth 1 445d 441d 0/26 auto-obsoleted due to no activity on 2023/06/27 21:08

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 15263 at kernel/workqueue.c:1725 current_wq_worker kernel/workqueue_internal.h:69 [inline]
WARNING: CPU: 0 PID: 15263 at kernel/workqueue.c:1725 is_chained_work kernel/workqueue.c:1663 [inline]
WARNING: CPU: 0 PID: 15263 at kernel/workqueue.c:1725 __queue_work+0xe14/0x1338 kernel/workqueue.c:1724
Modules linked in:
CPU: 0 PID: 15263 Comm: syz-executor.3 Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __queue_work+0xe14/0x1338 kernel/workqueue_internal.h:69
lr : current_wq_worker kernel/workqueue_internal.h:69 [inline]
lr : is_chained_work kernel/workqueue.c:1663 [inline]
lr : __queue_work+0xe14/0x1338 kernel/workqueue.c:1724
sp : ffff8000998a7410
x29: ffff8000998a7450 x28: 1fffe0001a720c92 x27: ffff0000d459c9c0
x26: dfff800000000000 x25: ffff0000d459c800 x24: 0000000000000008
x23: 0000000000000000 x22: ffff0000ccde0000 x21: 0000000000000000
x20: 0000000000400140 x19: ffff0000d12e4da0 x18: ffff8000998a7400
x17: ffff800080a9cd40 x16: ffff80008a71b23c x15: 0000000000000001
x14: 1fffe0001a25c9b4 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000040000 x10: 0000000000001a0a x9 : ffff80009880e000
x8 : 0000000000001a0b x7 : ffff800089878008 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008022056c
x2 : ffff0000d12e4da0 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 current_wq_worker kernel/workqueue_internal.h:69 [inline]
 is_chained_work kernel/workqueue.c:1663 [inline]
 __queue_work+0xe14/0x1338 kernel/workqueue.c:1724
 queue_work_on+0x9c/0x128 kernel/workqueue.c:1834
 queue_work include/linux/workqueue.h:554 [inline]
 hci_send_acl+0x904/0xc48 net/bluetooth/hci_core.c:3237
 l2cap_do_send+0x238/0x350
 l2cap_chan_send+0x190c/0x1e5c
 l2cap_sock_sendmsg+0x184/0x2a8 net/bluetooth/l2cap_sock.c:1154
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 sock_write_iter+0x2d8/0x448 net/socket.c:1158
 do_iter_write+0x65c/0xaa8 fs/read_write.c:860
 vfs_writev fs/read_write.c:933 [inline]
 do_writev+0x220/0x3ec fs/read_write.c:976
 __do_sys_writev fs/read_write.c:1049 [inline]
 __se_sys_writev fs/read_write.c:1046 [inline]
 __arm64_sys_writev+0x80/0x94 fs/read_write.c:1046
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
irq event stamp: 364
hardirqs last  enabled at (363): [<ffff8000801d1cd8>] __local_bh_enable_ip+0x24c/0x4ac kernel/softirq.c:386
hardirqs last disabled at (364): [<ffff800080220558>] queue_work_on+0x50/0x128 kernel/workqueue.c:1831
softirqs last  enabled at (362): [<ffff8000898784b4>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last  enabled at (362): [<ffff8000898784b4>] hci_queue_acl net/bluetooth/hci_core.c:3225 [inline]
softirqs last  enabled at (362): [<ffff8000898784b4>] hci_send_acl+0x870/0xc48 net/bluetooth/hci_core.c:3235
softirqs last disabled at (360): [<ffff800089878008>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (360): [<ffff800089878008>] hci_queue_acl net/bluetooth/hci_core.c:3208 [inline]
softirqs last disabled at (360): [<ffff800089878008>] hci_send_acl+0x3c4/0xc48 net/bluetooth/hci_core.c:3235
---[ end trace 0000000000000000 ]---

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/11/08 03:24 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8de1e7afcc1c 83211397 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in hci_send_acl
* Struck through repros no longer work on HEAD.