Bluetooth: hci0: command 0x0406 tx timeout
INFO: task syz-executor.0:9314 blocked for more than 140 seconds.
Not tainted 4.19.163-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0 D28072 9314 8157 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794
do_wait_for_common kernel/sched/completion.c:83 [inline]
__wait_for_common kernel/sched/completion.c:104 [inline]
wait_for_common+0x29c/0x470 kernel/sched/completion.c:115
__flush_work+0x4bb/0x8b0 kernel/workqueue.c:2928
__cancel_work_timer+0x412/0x590 kernel/workqueue.c:3015
p9_conn_destroy net/9p/trans_fd.c:904 [inline]
p9_fd_close+0x305/0x520 net/9p/trans_fd.c:934
p9_client_create+0x901/0x12e0 net/9p/client.c:1084
v9fs_session_init+0x1dd/0x1770 fs/9p/v9fs.c:421
v9fs_mount+0x73/0x910 fs/9p/vfs_super.c:135
mount_fs+0xa3/0x30c fs/super.c:1261
vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
vfs_kern_mount fs/namespace.c:951 [inline]
do_new_mount fs/namespace.c:2469 [inline]
do_mount+0x113c/0x2f10 fs/namespace.c:2799
ksys_mount+0xcf/0x130 fs/namespace.c:3015
__do_sys_mount fs/namespace.c:3029 [inline]
__se_sys_mount fs/namespace.c:3026 [inline]
__x64_sys_mount+0xba/0x150 fs/namespace.c:3026
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45e149
Code: Bad RIP value.
RSP: 002b:00007fc4d7284c68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000045e149
RDX: 0000000020000240 RSI: 0000000020000200 RDI: 0000000000000000
RBP: 000000000119c1c8 R08: 0000000020000580 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119c184
R13: 00007ffebaf87a7f R14: 00007fc4d72859c0 R15: 000000000119c184
Showing all locks held in the system:
1 lock held by khungtaskd/1568:
#0: 00000000dc0cc9cf (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4440
2 locks held by in:imklog/7807:
#0: 00000000ce96f4c1 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
#1: 00000000e1c1a08e (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1830 [inline]
#1: 00000000e1c1a08e (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
2 locks held by kworker/0:0/8134:
#0: 000000009f79b485 ((wq_completion)"events"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2126
#1: 0000000032351e74 ((work_completion)(&m->wq)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2130
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1568 Comm: khungtaskd Not tainted 4.19.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2fe lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1eb lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
watchdog+0x991/0xe60 kernel/hung_task.c:287
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8435 Comm: kworker/u4:1 Not tainted 4.19.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy3 ieee80211_iface_work
RIP: 0010:__orc_find+0x58/0xf0 arch/x86/kernel/unwind_orc.c:46
Code: 00 00 fc ff df 49 89 fe 48 89 fd eb 0c 48 8d 6b 04 49 89 de 49 39 ec 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 <48> 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14
RSP: 0018:ffff8880aa837860 EFLAGS: 00000006
RAX: 0000000000000000 RBX: ffffffff8b889364 RCX: ffffffff88200193
RDX: 0000000000000003 RSI: ffffffff8c112d52 RDI: ffffffff8b8892e8
RBP: ffffffff8b889368 R08: ffffffff8c112f08 R09: ffffffff8c112d52
R10: 0000000000074071 R11: 0000000000161d9d R12: ffffffff8b889374
R13: ffffffff8b8892e8 R14: ffffffff8b889364 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4f9495c008 CR3: 00000000a10aa000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
orc_find arch/x86/kernel/unwind_orc.c:159 [inline]
unwind_next_frame+0x33b/0x1c60 arch/x86/kernel/unwind_orc.c:422
__save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44
save_stack mm/kasan/kasan.c:448 [inline]
set_track mm/kasan/kasan.c:460 [inline]
__kasan_slab_free+0x126/0x1f0 mm/kasan/kasan.c:521
__cache_free mm/slab.c:3503 [inline]
kmem_cache_free+0x7f/0x260 mm/slab.c:3765
kfree_skbmem+0xc1/0x140 net/core/skbuff.c:586
__kfree_skb net/core/skbuff.c:646 [inline]
kfree_skb+0x127/0x3d0 net/core/skbuff.c:663
ieee80211_iface_work+0x289/0x8a0 net/mac80211/iface.c:1357
process_one_work+0x864/0x1570 kernel/workqueue.c:2155
worker_thread+0x64c/0x1130 kernel/workqueue.c:2298
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415