INFO: task krfcommd:2707 blocked for more than 143 seconds.
Tainted: G W 5.17.0-syzkaller-10753-gbddac7c1e02b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:krfcommd state:D stack:28696 pid: 2707 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x937/0x1090 kernel/sched/core.c:6382
schedule+0xeb/0x1b0 kernel/sched/core.c:6454
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6513
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:673
__mutex_lock kernel/locking/mutex.c:733 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:785
rfcomm_process_sessions+0x21/0x3f0 net/bluetooth/rfcomm/core.c:2015
rfcomm_run+0x195/0x2c0 net/bluetooth/rfcomm/core.c:2122
kthread+0x2a3/0x2d0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
INFO: task syz-executor340:3618 blocked for more than 143 seconds.
Tainted: G W 5.17.0-syzkaller-10753-gbddac7c1e02b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor340 state:D stack:26552 pid: 3618 ppid: 3612 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x937/0x1090 kernel/sched/core.c:6382
schedule+0xeb/0x1b0 kernel/sched/core.c:6454
__lock_sock+0x1cf/0x330 net/core/sock.c:2770
lock_sock_nested+0x9f/0x100 net/core/sock.c:3317
lock_sock include/net/sock.h:1682 [inline]
rfcomm_sk_state_change+0x63/0x300 net/bluetooth/rfcomm/sock.c:73
__rfcomm_dlc_close+0x2cc/0x480 net/bluetooth/rfcomm/core.c:489
rfcomm_dlc_close+0x10d/0x1c0 net/bluetooth/rfcomm/core.c:520
__rfcomm_sock_close+0x101/0x220 net/bluetooth/rfcomm/sock.c:220
rfcomm_sock_shutdown+0xa5/0x220 net/bluetooth/rfcomm/sock.c:905
rfcomm_sock_release+0x55/0x120 net/bluetooth/rfcomm/sock.c:925
__sock_release net/socket.c:650 [inline]
sock_close+0xd8/0x260 net/socket.c:1318
__fput+0x3fc/0x870 fs/file_table.c:317
task_work_run+0x146/0x1c0 kernel/task_work.c:164
exit_task_work include/linux/task_work.h:32 [inline]
do_exit+0x5e3/0x20f0 kernel/exit.c:794
do_group_exit+0x2af/0x2b0 kernel/exit.c:924
get_signal+0x1831/0x2330 kernel/signal.c:2903
arch_do_signal_or_restart+0x9c/0x730 arch/x86/kernel/signal.c:868
handle_signal_work kernel/entry/common.c:149 [inline]
exit_to_user_mode_loop kernel/entry/common.c:187 [inline]
exit_to_user_mode_prepare+0x165/0x200 kernel/entry/common.c:222
__syscall_exit_to_user_mode_work kernel/entry/common.c:304 [inline]
syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:315
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f369c26e3f9
RSP: 002b:00007ffdb9c77ab8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: fffffffffffffffc RBX: 0000555556f653b8 RCX: 00007f369c26e3f9
RDX: 0000000000000080 RSI: 0000000020000600 RDI: 0000000000000004
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
R13: 0000000000000072 R14: 00007ffdb9c77b40 R15: 0000000000000000
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Tainted: G W 5.17.0-syzkaller-10753-gbddac7c1e02b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 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+0xc82/0xcd0 kernel/hung_task.c:369
kthread+0x2a3/0x2d0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8 Comm: kworker/u4:0 Tainted: G W 5.17.0-syzkaller-10753-gbddac7c1e02b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:insn_get_displacement+0x0/0xa90 arch/x86/lib/insn.c:456
Code: ff ff e8 03 cc 7a fd e9 d5 fe ff ff 44 89 e9 80 e1 07 38 c1 0f 8c e2 fe ff ff 4c 89 ef e8 a8 cb 7a fd e9 d5 fe ff ff 0f 1f 00 <55> 41 57 41 56 41 55 41 54 53 48 83 ec 28 49 89 fc 48 bd 00 00 00
RSP: 0018:ffffc900000d7880 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88813fe7d700
RDX: ffff88813fe7d700 RSI: 0000000000000000 RDI: ffffc900000d7980
RBP: 1ffff9200001af37 R08: ffffffff845d74f9 R09: ffffc900000d7980
R10: fffff5200001af3b R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000000 R14: ffffc900000d7980 R15: ffffc900000d79bc
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb1d781a990 CR3: 000000000ca8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
insn_get_immediate+0x404/0x1fe0 arch/x86/lib/insn.c:632
insn_get_length arch/x86/lib/insn.c:707 [inline]
insn_decode+0x350/0x4c0 arch/x86/lib/insn.c:747
arch_jump_entry_size arch/x86/kernel/jump_label.c:24 [inline]
__jump_label_patch+0xe0/0x2b0 arch/x86/kernel/jump_label.c:45
arch_jump_label_transform_queue+0x49/0xd0 arch/x86/kernel/jump_label.c:137
__jump_label_update+0x15d/0x350 kernel/jump_label.c:451
static_key_disable_cpuslocked+0xcc/0x1b0 kernel/jump_label.c:207
static_key_disable+0x16/0x20 kernel/jump_label.c:215
toggle_allocation_gate+0x3c8/0x460 mm/kfence/core.c:793
process_one_work+0x83c/0x11a0 kernel/workqueue.c:2289
worker_thread+0xa6c/0x1290 kernel/workqueue.c:2436
kthread+0x2a3/0x2d0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
----------------
Code disassembly (best guess), 2 bytes skipped:
0: e8 03 cc 7a fd callq 0xfd7acc08
5: e9 d5 fe ff ff jmpq 0xfffffedf
a: 44 89 e9 mov %r13d,%ecx
d: 80 e1 07 and $0x7,%cl
10: 38 c1 cmp %al,%cl
12: 0f 8c e2 fe ff ff jl 0xfffffefa
18: 4c 89 ef mov %r13,%rdi
1b: e8 a8 cb 7a fd callq 0xfd7acbc8
20: e9 d5 fe ff ff jmpq 0xfffffefa
25: 0f 1f 00 nopl (%rax)
* 28: 55 push %rbp <-- trapping instruction
29: 41 57 push %r15
2b: 41 56 push %r14
2d: 41 55 push %r13
2f: 41 54 push %r12
31: 53 push %rbx
32: 48 83 ec 28 sub $0x28,%rsp
36: 49 89 fc mov %rdi,%r12
39: 48 rex.W
3a: bd .byte 0xbd
3b: 00 00 add %al,(%rax)