INFO: task kworker/u5:6:3650 blocked for more than 143 seconds.
Not tainted 5.19.0-rc4-syzkaller-00205-g34074da5424c #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u5:6 state:D stack:28600 pid: 3650 ppid: 2 flags:0x00004000
Workqueue: hci6 hci_power_on
Call Trace:
context_switch kernel/sched/core.c:5146 [inline]
__schedule+0xa00/0x4b50 kernel/sched/core.c:6458
schedule+0xd2/0x1f0 kernel/sched/core.c:6530
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6589
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
hci_dev_do_open+0x2a/0x70 net/bluetooth/hci_core.c:480
hci_power_on+0x133/0x630 net/bluetooth/hci_core.c:963
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
INFO: task syz-executor.1:19052 blocked for more than 143 seconds.
Not tainted 5.19.0-rc4-syzkaller-00205-g34074da5424c #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28032 pid:19052 ppid: 3635 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5146 [inline]
__schedule+0xa00/0x4b50 kernel/sched/core.c:6458
schedule+0xd2/0x1f0 kernel/sched/core.c:6530
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
__flush_work+0x56c/0xb10 kernel/workqueue.c:3075
__cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3162
hci_dev_close_sync+0x8d/0x1150 net/bluetooth/hci_sync.c:4091
hci_dev_do_close+0x32/0x70 net/bluetooth/hci_core.c:553
hci_unregister_dev+0x1c4/0x550 net/bluetooth/hci_core.c:2685
hci_uart_tty_close+0x241/0x2a0 drivers/bluetooth/hci_ldisc.c:548
tty_ldisc_close+0x110/0x190 drivers/tty/tty_ldisc.c:456
tty_ldisc_kill+0x94/0x150 drivers/tty/tty_ldisc.c:608
tty_ldisc_release+0xe1/0x2a0 drivers/tty/tty_ldisc.c:776
tty_release_struct+0x20/0xe0 drivers/tty/tty_io.c:1694
tty_release+0xc70/0x1200 drivers/tty/tty_io.c:1865
__fput+0x277/0x9d0 fs/file_table.c:317
task_work_run+0xdd/0x1a0 kernel/task_work.c:177
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:169 [inline]
exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f29cb43bd4b
RSP: 002b:00007ffd5ab0d9a0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f29cb43bd4b
RDX: 00007f29cb5a0248 RSI: ffffffffffffffff RDI: 0000000000000003
RBP: 00007f29cb59d960 R08: 0000000000000000 R09: 00007f29cb5a0250
R10: 00007ffd5ab0daa0 R11: 0000000000000293 R12: 000000000006b44e
R13: 00007ffd5ab0daa0 R14: 00007f29cb59bf60 R15: 0000000000000032
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8bd86660 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491
2 locks held by getty/3284:
#0: ffff88814a7cc098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002d162e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2124
3 locks held by kworker/u5:6/3650:
#0: ffff888026124138 ((wq_completion)hci6){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888026124138 ((wq_completion)hci6){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888026124138 ((wq_completion)hci6){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888026124138 ((wq_completion)hci6){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888026124138 ((wq_completion)hci6){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888026124138 ((wq_completion)hci6){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc9000417fda8 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff8880207c1048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_open+0x2a/0x70 net/bluetooth/hci_core.c:480
3 locks held by kworker/u4:17/7604:
#0: ffff8880b9a39ed8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:544
#1: ffffc900151cfda8 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff8880b9a39ed8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:544
3 locks held by syz-executor.1/19052:
#0: ffff88807e293098 (&tty->ldisc_sem){++++}-{0:0}, at: __tty_ldisc_lock drivers/tty/tty_ldisc.c:290 [inline]
#0: ffff88807e293098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_lock_pair_timeout drivers/tty/tty_ldisc.c:346 [inline]
#0: ffff88807e293098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_lock_pair drivers/tty/tty_ldisc.c:367 [inline]
#0: ffff88807e293098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_release+0x127/0x2a0 drivers/tty/tty_ldisc.c:775
#1: ffff88807e296098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: __tty_ldisc_lock_nested drivers/tty/tty_ldisc.c:296 [inline]
#1: ffff88807e296098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_lock_pair_timeout drivers/tty/tty_ldisc.c:348 [inline]
#1: ffff88807e296098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_lock_pair drivers/tty/tty_ldisc.c:367 [inline]
#1: ffff88807e296098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_release+0x1bd/0x2a0 drivers/tty/tty_ldisc.c:775
#2: ffff8880207c1048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x2a/0x70 net/bluetooth/hci_core.c:551
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.19.0-rc4-syzkaller-00205-g34074da5424c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:369
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2963 Comm: klogd Not tainted 5.19.0-rc4-syzkaller-00205-g34074da5424c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
RIP: 0010:_compound_head include/linux/page-flags.h:275 [inline]
RIP: 0010:virt_to_folio include/linux/mm.h:855 [inline]
RIP: 0010:virt_to_slab mm/kasan/../slab.h:175 [inline]
RIP: 0010:qlink_to_cache mm/kasan/quarantine.c:131 [inline]
RIP: 0010:qlist_free_all+0x16b/0x170 mm/kasan/quarantine.c:184
Code: 85 69 ff ff ff 48 8b 03 a9 00 00 01 00 0f 84 5b ff ff ff 48 8b 43 48 48 8d 50 ff a8 01 48 0f 45 da e9 48 ff ff ff 48 8d 58 ff 3f ff ff ff 53 48 c7 c3 c0 5d 03 00 e8 43 2f b0 07 89 c0 48 03
RSP: 0018:ffffc90002d3f888 EFLAGS: 00000202
RAX: ffffea0000bbd001 RBX: ffffea0000bbd000 RCX: 0000000000000000
RDX: ffff88807e0b3b00 RSI: ffffffff81364ca4 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: ffffc90002d3f8c8 R14: ffff88802ef44000 R15: 0000000000000000
FS: 00007f9e9d3c3800(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c002c87bc8 CR3: 000000007ef16000 CR4: 0000000000350ef0
Call Trace:
kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:294
__kasan_slab_alloc+0xa2/0xc0 mm/kasan/common.c:446
kasan_slab_alloc include/linux/kasan.h:224 [inline]
slab_post_alloc_hook mm/slab.h:750 [inline]
slab_alloc_node mm/slub.c:3243 [inline]
__kmalloc_node_track_caller+0x238/0x360 mm/slub.c:4979
kmalloc_reserve net/core/skbuff.c:354 [inline]
__alloc_skb+0xde/0x340 net/core/skbuff.c:426
alloc_skb include/linux/skbuff.h:1426 [inline]
alloc_skb_with_frags+0x93/0x730 net/core/skbuff.c:5992
sock_alloc_send_pskb+0x793/0x920 net/core/sock.c:2662
unix_dgram_sendmsg+0x425/0x1ad0 net/unix/af_unix.c:1895
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:734
__sys_sendto+0x21a/0x320 net/socket.c:2119
__do_sys_sendto net/socket.c:2131 [inline]
__se_sys_sendto net/socket.c:2127 [inline]
__x64_sys_sendto+0xdd/0x1b0 net/socket.c:2127
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f9e9d55f0ac
Code: 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 19 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 64 c3 0f 1f 00 55 48 83 ec 20 48 89 54 24 10
RSP: 002b:00007fff987c5488 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9e9d55f0ac
RDX: 000000000000003a RSI: 00005600b1a6c0d0 RDI: 0000000000000003
RBP: 00005600b1a65910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000014
R13: 0000000000000001 R14: 00007f9e9d6da77d R15: 00007fff987c5598
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 69 ff ff ff 48 8b imul $0x8b48ffff,%edi,%edi
6: 03 a9 00 00 01 00 add 0x10000(%rcx),%ebp
c: 0f 84 5b ff ff ff je 0xffffff6d
12: 48 8b 43 48 mov 0x48(%rbx),%rax
16: 48 8d 50 ff lea -0x1(%rax),%rdx
1a: a8 01 test $0x1,%al
1c: 48 0f 45 da cmovne %rdx,%rbx
20: e9 48 ff ff ff jmpq 0xffffff6d
25: 48 8d 58 ff lea -0x1(%rax),%rbx
* 29: e9 3f ff ff ff jmpq 0xffffff6d <-- trapping instruction
2e: 53 push %rbx
2f: 48 c7 c3 c0 5d 03 00 mov $0x35dc0,%rbx
36: e8 43 2f b0 07 callq 0x7b02f7e
3b: 89 c0 mov %eax,%eax
3d: 48 rex.W
3e: 03 .byte 0x3