INFO: task syz-executor.2:4736 blocked for more than 143 seconds.
Tainted: G W 5.17.0-syzkaller-01442-gb47d5a4f6b8d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28792 pid: 4736 ppid: 3632 flags:0x20004004
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0xa94/0x4910 kernel/sched/core.c:6304
schedule+0xd2/0x1f0 kernel/sched/core.c:6376
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x2af/0x360 kernel/sched/completion.c:106
io_wq_exit_workers fs/io-wq.c:1264 [inline]
io_wq_put_and_exit+0x4d6/0xe40 fs/io-wq.c:1299
io_uring_clean_tctx fs/io_uring.c:10512 [inline]
io_uring_cancel_generic+0x60b/0x695 fs/io_uring.c:10582
io_uring_files_cancel include/linux/io_uring.h:18 [inline]
do_exit+0x4f9/0x29d0 kernel/exit.c:761
do_group_exit+0xd2/0x2f0 kernel/exit.c:936
get_signal+0x45a/0x2490 kernel/signal.c:2903
arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop kernel/entry/common.c:186 [inline]
exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:221
__syscall_exit_to_user_mode_work kernel/entry/common.c:303 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:314
do_int80_syscall_32+0x53/0x90 arch/x86/entry/common.c:135
entry_INT80_compat+0x71/0x76 arch/x86/entry/entry_64_compat.S:413
RIP: 0023:0xf6f34549
RSP: 002b:00000000f592e67c EFLAGS: 00000296 ORIG_RAX: 00000000000000f0
RAX: fffffffffffffe00 RBX: 00000000f7090fa8 RCX: 0000000000000080
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000f7090fac
RBP: 0000000000000081 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Tainted: G W 5.17.0-syzkaller-01442-gb47d5a4f6b8d #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+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:377
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: 10 Comm: kworker/u4:1 Tainted: G W 5.17.0-syzkaller-01442-gb47d5a4f6b8d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy5 ieee80211_iface_work
RIP: 0010:unwind_next_frame+0xaf/0x1ce0 arch/x86/kernel/unwind_orc.c:634
Code: 3b 48 ba 00 00 00 00 00 fc ff df 48 c7 04 13 00 00 00 00 48 8b 8c 24 98 00 00 00 65 48 2b 0c 25 28 00 00 00 0f 85 53 15 00 00 <48> 81 c4 a0 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 4d 8d 66 48
RSP: 0018:ffffc90000cf7128 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 1ffff9200019ee2d RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffc90000cf7cf8 RDI: 0000000000000001
RBP: ffffc90000cf7d28 R08: ffffffff8e9daa60 R09: 0000000000000001
R10: fffff5200019ee4b R11: 0000000000088078 R12: ffffc90000cf0000
R13: ffffc90000cf7235 R14: ffffc90000cf7200 R15: ffffc90000cf7234
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f217e80cc48 CR3: 000000000b88e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
__kasan_record_aux_stack+0xbe/0xd0 mm/kasan/generic.c:348
kvfree_call_rcu+0x74/0x990 kernel/rcu/tree.c:3595
cfg80211_update_known_bss+0x833/0xa60 net/wireless/scan.c:1661
cfg80211_bss_update+0xef/0x2070 net/wireless/scan.c:1708
cfg80211_inform_single_bss_frame_data+0x731/0xf40 net/wireless/scan.c:2464
cfg80211_inform_bss_frame_data+0xa7/0xb50 net/wireless/scan.c:2497
ieee80211_bss_info_update+0x35b/0xb00 net/mac80211/scan.c:190
ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline]
ieee80211_ibss_rx_queued_mgmt+0x19cf/0x3150 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
ieee80211_iface_work+0xa69/0xd00 net/mac80211/iface.c:1581
process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
worker_thread+0x657/0x1110 kernel/workqueue.c:2454
kthread+0x2e9/0x3a0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
7: fc ff df
a: 48 c7 04 13 00 00 00 movq $0x0,(%rbx,%rdx,1)
11: 00
12: 48 8b 8c 24 98 00 00 mov 0x98(%rsp),%rcx
19: 00
1a: 65 48 2b 0c 25 28 00 sub %gs:0x28,%rcx
21: 00 00
23: 0f 85 53 15 00 00 jne 0x157c
* 29: 48 81 c4 a0 00 00 00 add $0xa0,%rsp <-- trapping instruction
30: 5b pop %rbx
31: 5d pop %rbp
32: 41 5c pop %r12
34: 41 5d pop %r13
36: 41 5e pop %r14
38: 41 5f pop %r15
3a: c3 retq
3b: 4d 8d 66 48 lea 0x48(%r14),%r12