INFO: task syz-executor.4:8008 blocked for more than 143 seconds.
Not tainted 5.16.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:25944 pid: 8008 ppid: 29416 flags:0x00000004
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
perf_event_free_task+0x518/0x6c0 kernel/events/core.c:12864
copy_process+0x4bea/0x75a0 kernel/fork.c:2458
kernel_clone+0xe7/0xab0 kernel/fork.c:2582
__do_sys_clone3+0x1ca/0x2e0 kernel/fork.c:2857
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+0x44/0xae
RIP: 0033:0x7f4c98b1fe99
RSP: 002b:00007f4c97432168 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f4c98c331d0 RCX: 00007f4c98b1fe99
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000240
RBP: 00007f4c98b79ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd0443515f R14: 00007f4c97432300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/26:
#0: ffffffff8bb812e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
2 locks held by kworker/u4:3/54:
#0: ffff8880b9d39b18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:478
#1: ffffc90001a37db0 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
2 locks held by getty/3284:
#0: ffff88807f3d1098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:252
#1: ffffc90002b8e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2113
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.16.0-rc5-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: 4522 Comm: kworker/u4:7 Not tainted 5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy5 ieee80211_iface_work
RIP: 0010:kasan_check_range+0x16/0x180 mm/kasan/generic.c:188
Code: 01 48 0f 45 c1 48 89 c7 e8 17 c9 ec ff 0f 0b 0f 1f 44 00 00 48 85 f6 0f 84 3c 01 00 00 49 89 f9 41 54 44 0f b6 c2 49 01 f1 55 <53> 0f 82 18 01 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 c7 0f 86
RSP: 0018:ffffc90002cb7988 EFLAGS: 00000286
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff815bf7a7
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8d90fad0
RBP: 1ffff92000596f36 R08: 0000000000000000 R09: ffffffff8d90fad8
R10: ffffffff8894a1bd R11: 0000000000000001 R12: ffff88802d8417b0
R13: dffffc0000000000 R14: ffff88802d841748 R15: 0000000000001770
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff8208a2070 CR3: 000000000b88e000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:71 [inline]
test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
cpumask_test_cpu include/linux/cpumask.h:344 [inline]
cpu_online include/linux/cpumask.h:895 [inline]
trace_lock_release include/trace/events/lock.h:58 [inline]
lock_release+0x457/0x720 kernel/locking/lockdep.c:5648
__mutex_unlock_slowpath+0x99/0x5e0 kernel/locking/mutex.c:900
ieee80211_ibss_sta_expire net/mac80211/ibss.c:1281 [inline]
ieee80211_sta_merge_ibss net/mac80211/ibss.c:1298 [inline]
ieee80211_ibss_work+0x64f/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: 01 48 0f add %ecx,0xf(%rax)
3: 45 c1 48 89 c7 rex.RB rorl $0xc7,-0x77(%r8)
8: e8 17 c9 ec ff callq 0xffecc924
d: 0f 0b ud2
f: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
14: 48 85 f6 test %rsi,%rsi
17: 0f 84 3c 01 00 00 je 0x159
1d: 49 89 f9 mov %rdi,%r9
20: 41 54 push %r12
22: 44 0f b6 c2 movzbl %dl,%r8d
26: 49 01 f1 add %rsi,%r9
29: 55 push %rbp
* 2a: 53 push %rbx <-- trapping instruction
2b: 0f 82 18 01 00 00 jb 0x149
31: 48 b8 ff ff ff ff ff movabs $0xffff7fffffffffff,%rax
38: 7f ff ff
3b: 48 39 c7 cmp %rax,%rdi
3e: 0f .byte 0xf
3f: 86 .byte 0x86