INFO: task syz-executor.0:12093 blocked for more than 143 seconds.
Not tainted 5.18.0-rc3-syzkaller-00235-g22da5264abf4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:25208 pid:12093 ppid: 3622 flags:0x00024004
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x939/0xea0 kernel/sched/core.c:6388
schedule+0xeb/0x1b0 kernel/sched/core.c:6460
schedule_timeout+0xac/0x300 kernel/time/timer.c:1860
do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
io_wq_exit_workers fs/io-wq.c:1266 [inline]
io_wq_put_and_exit+0x5e8/0xcd0 fs/io-wq.c:1301
io_uring_clean_tctx+0x164/0x1d0 fs/io_uring.c:10381
io_uring_cancel_generic+0x2de/0x554 fs/io_uring.c:10451
io_uring_files_cancel include/linux/io_uring.h:18 [inline]
do_exit+0x141/0x1eb0 kernel/exit.c:750
do_group_exit+0x23b/0x2f0 kernel/exit.c:925
get_signal+0x172f/0x1780 kernel/signal.c:2864
arch_do_signal_or_restart+0x8d/0x750 arch/x86/kernel/signal.c:867
exit_to_user_mode_loop+0x74/0x160 kernel/entry/common.c:166
exit_to_user_mode_prepare+0xad/0x110 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f6cc78890e9
RSP: 002b:00007f6cc89c5218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f6cc799bf68 RCX: 00007f6cc78890e9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6cc799bf68
RBP: 00007f6cc799bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6cc799bf6c
R13: 00007ffe1815077f R14: 00007f6cc89c5300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8cb1afe0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3279:
#0: ffff88801dc3a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002b832e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ad/0x1c90 drivers/tty/n_tty.c:2075
1 lock held by iou-wrk-12093/12094:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.18.0-rc3-syzkaller-00235-g22da5264abf4 #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+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x473/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x168/0x280 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+0xcf9/0xd40 kernel/hung_task.c:369
kthread+0x266/0x300 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: 988 Comm: kworker/u4:4 Not tainted 5.18.0-rc3-syzkaller-00235-g22da5264abf4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy14 ieee80211_iface_work
RIP: 0010:memset_erms+0x0/0x10
Code: 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 <49> 89 f9 40 88 f0 48 89 d1 f3 aa 4c 89 c8 c3 90 49 89 fa 40 0f b6
RSP: 0018:ffffc900044b7338 EFLAGS: 00000202
RAX: 1ffff92000896e01 RBX: ffffc900044b7450 RCX: ffffffff813b1a99
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc900044b7450
RBP: ffffffff8e7f5f2c R08: dffffc0000000000 R09: fffff52000896e8c
R10: fffff52000896e8c R11: 1ffff92000896e8a R12: 1ffffffff1cfebe6
R13: ffffc900044b7400 R14: dffffc0000000000 R15: ffffffff8e7f5f30
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c01527abc0 CR3: 000000000c88e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
unwind_next_frame+0xb39/0x1dc0 arch/x86/kernel/unwind_orc.c:541
arch_stack_walk+0x112/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x12d/0x1f0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:436 [inline]
____kasan_kmalloc+0xdc/0x110 mm/kasan/common.c:515
kasan_kmalloc include/linux/kasan.h:234 [inline]
__kmalloc+0x223/0x370 mm/slub.c:4414
kmalloc include/linux/slab.h:586 [inline]
ieee802_11_parse_elems_crc+0x146/0x1130 net/mac80211/util.c:1508
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2251 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1605 [inline]
ieee80211_ibss_rx_queued_mgmt+0x392/0x28c0 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
ieee80211_iface_work+0x757/0xcd0 net/mac80211/iface.c:1581
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
----------------
Code disassembly (best guess):
0: 89 f9 mov %edi,%ecx
2: 48 89 d1 mov %rdx,%rcx
5: 83 e2 07 and $0x7,%edx
8: 48 c1 e9 03 shr $0x3,%rcx
c: 40 0f b6 f6 movzbl %sil,%esi
10: 48 b8 01 01 01 01 01 movabs $0x101010101010101,%rax
17: 01 01 01
1a: 48 0f af c6 imul %rsi,%rax
1e: f3 48 ab rep stos %rax,%es:(%rdi)
21: 89 d1 mov %edx,%ecx
23: f3 aa rep stos %al,%es:(%rdi)
25: 4c 89 c8 mov %r9,%rax
28: c3 retq
29: 90 nop
* 2a: 49 89 f9 mov %rdi,%r9 <-- trapping instruction
2d: 40 88 f0 mov %sil,%al
30: 48 89 d1 mov %rdx,%rcx
33: f3 aa rep stos %al,%es:(%rdi)
35: 4c 89 c8 mov %r9,%rax
38: c3 retq
39: 90 nop
3a: 49 89 fa mov %rdi,%r10
3d: 40 rex
3e: 0f .byte 0xf
3f: b6 .byte 0xb6