INFO: task syz-executor.5:5250 blocked for more than 143 seconds.
Not tainted 5.16.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28152 pid: 5250 ppid: 6522 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common kernel/locking/mutex.c:680 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
io_ring_ctx_wait_and_kill+0x72/0x322 fs/io_uring.c:9565
io_uring_release+0x42/0x46 fs/io_uring.c:9594
__fput+0x286/0x9f0 fs/file_table.c:280
task_work_run+0xdd/0x1a0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f5b0d06472b
RSP: 002b:00007ffc3f6ed320 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 00007f5b0d06472b
RDX: 0000001b33020000 RSI: ffffffff817def51 RDI: 0000000000000003
RBP: 0000000000000004 R08: 0000000000000000 R09: 00007ffc3f796080
R10: 000000000000165b R11: 0000000000000293 R12: 00007f5b0d1c6860
R13: 00007f5b0d1c6860 R14: 0000000000000000 R15: 00000000000e58ca
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bb83b60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by in:imklog/6210:
#0: ffff888015799270 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:994
1 lock held by syz-executor.5/5250:
#0: ffff88804401b0a8 (&ctx->uring_lock){+.+.}-{3:3}, at: io_ring_ctx_wait_and_kill+0x72/0x322 fs/io_uring.c:9565
1 lock held by syz-executor.5/5260:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc3-syzkaller #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+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3199 Comm: kworker/u4:13 Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy4 ieee80211_iface_work
RIP: 0010:write_comp_data kernel/kcov.c:221 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x3/0x70 kernel/kcov.c:294
Code: 44 89 c6 48 83 c2 01 48 89 4c 38 f0 48 c7 44 38 e0 05 00 00 00 48 89 74 38 e8 4e 89 54 c8 20 48 89 10 c3 0f 1f 40 00 49 89 f8 03 00 00 00 4c 8b 14 24 48 89 f1 65 48 8b 34 25 40 70 02 00 e8
RSP: 0018:ffffc90010c7fb58 EFLAGS: 00000206
RAX: 00000001000138ec RBX: 00000000000003e8 RCX: 0000000000000000
RDX: ffff8880421ad700 RSI: 00000000000003e8 RDI: 0000000000000000
RBP: ffff8880151cc000 R08: 0000000000000000 R09: ffffc90010c7fa9f
R10: ffffffff88947338 R11: 0000000000000001 R12: ffff88806e0e1820
R13: dffffc0000000000 R14: ffff888073128c80 R15: 0000000000001770
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00156ba40 CR3: 0000000090336000 CR4: 0000000000350ee0
Call Trace:
ieee80211_ibss_sta_expire net/mac80211/ibss.c:1264 [inline]
ieee80211_sta_merge_ibss net/mac80211/ibss.c:1298 [inline]
ieee80211_ibss_work+0x59d/0xe80 net/mac80211/ibss.c:1709
ieee80211_iface_work+0xb70/0xd00 net/mac80211/iface.c:1544
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 44 89 c6 mov %r8d,%esi
3: 48 83 c2 01 add $0x1,%rdx
7: 48 89 4c 38 f0 mov %rcx,-0x10(%rax,%rdi,1)
c: 48 c7 44 38 e0 05 00 movq $0x5,-0x20(%rax,%rdi,1)
13: 00 00
15: 48 89 74 38 e8 mov %rsi,-0x18(%rax,%rdi,1)
1a: 4e 89 54 c8 20 mov %r10,0x20(%rax,%r9,8)
1f: 48 89 10 mov %rdx,(%rax)
22: c3 retq
23: 0f 1f 40 00 nopl 0x0(%rax)
27: 49 89 f8 mov %rdi,%r8
* 2a: bf 03 00 00 00 mov $0x3,%edi <-- trapping instruction
2f: 4c 8b 14 24 mov (%rsp),%r10
33: 48 89 f1 mov %rsi,%rcx
36: 65 48 8b 34 25 40 70 mov %gs:0x27040,%rsi
3d: 02 00
3f: e8 .byte 0xe8