INFO: task syz-executor.5:25570 blocked for more than 143 seconds.
Not tainted 5.17.0-rc1-syzkaller-00339-g169387e2aa29 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:26904 pid:25570 ppid: 24646 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:4986 [inline]
__schedule+0xab2/0x4db0 kernel/sched/core.c:6295
schedule+0xd2/0x260 kernel/sched/core.c:6368
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6427
__mutex_lock_common kernel/locking/mutex.c:673 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
tty_release_struct+0xa9/0xe0 drivers/tty/tty_io.c:1704
tty_release+0xc70/0x1200 drivers/tty/tty_io.c:1865
__fput+0x286/0x9f0 fs/file_table.c:311
task_work_run+0xdd/0x1a0 kernel/task_work.c:164
get_signal+0x21f8/0x28c0 kernel/signal.c:2630
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:172 [inline]
exit_to_user_mode_prepare+0x17d/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: 0033:0x7fb1d0f5b059
RSP: 002b:00007fb1cf8d0168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: 0000000000000800 RBX: 00007fb1d106df60 RCX: 00007fb1d0f5b059
RDX: 0000000000001006 RSI: 0000000020001040 RDI: 0000000000000005
RBP: 00007fb1d0fb508d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdddf19e7f R14: 00007fb1cf8d0300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bb83c20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460
1 lock held by syslogd/2952:
#0: ffff8880b9d39c58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:489
1 lock held by klogd/2959:
#0: ffff8880b9d39c58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:489
2 locks held by getty/3277:
#0: ffff8880234e1098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002b632e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077
2 locks held by kworker/u4:10/6403:
#0: ffff8880b9d39c58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:489
#1: ffff888058cae098 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xab/0x1510 kernel/sched/core.c:4017
1 lock held by syz-executor.5/25570:
#0: ffffffff8c5be888 (tty_mutex){+.+.}-{3:3}, at: tty_release_struct+0xa9/0xe0 drivers/tty/tty_io.c:1704
3 locks held by syz-executor.4/25605:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.17.0-rc1-syzkaller-00339-g169387e2aa29 #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: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: 6414 Comm: kworker/u4:15 Not tainted 5.17.0-rc1-syzkaller-00339-g169387e2aa29 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy101 ieee80211_iface_work
RIP: 0010:ieee80211_sta_get_rates+0x528/0x960 net/mac80211/util.c:2149
Code: b6 14 30 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 73 03 00 00 41 0f b7 46 04 03 44 24 30 8b 5c 24 20 99 f7 7c 24 24 <89> de 41 89 c6 89 c7 e8 fc 4f d0 f8 41 39 de 0f 85 20 ff ff ff e8
RSP: 0018:ffffc90003f07a50 EFLAGS: 00000212
RAX: 000000000000005a RBX: 000000000000021c RCX: 0000000000000000
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffff888018d3df78
RBP: 000000000000000c R08: 0000000000000000 R09: 000000000000006c
R10: ffffffff88a821fa R11: 0000000000000000 R12: 0000000000000005
R13: 0000000000000005 R14: ffff888018d3df74 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0079d8000 CR3: 000000000b88e000 CR4: 0000000000350ee0
Call Trace:
ieee80211_update_sta_info net/mac80211/ibss.c:1003 [inline]
ieee80211_rx_bss_info net/mac80211/ibss.c:1117 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1131/0x3150 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):
0: b6 14 mov $0x14,%dh
2: 30 48 89 xor %cl,-0x77(%rax)
5: f8 clc
6: 83 e0 07 and $0x7,%eax
9: 83 c0 01 add $0x1,%eax
c: 38 d0 cmp %dl,%al
e: 7c 08 jl 0x18
10: 84 d2 test %dl,%dl
12: 0f 85 73 03 00 00 jne 0x38b
18: 41 0f b7 46 04 movzwl 0x4(%r14),%eax
1d: 03 44 24 30 add 0x30(%rsp),%eax
21: 8b 5c 24 20 mov 0x20(%rsp),%ebx
25: 99 cltd
26: f7 7c 24 24 idivl 0x24(%rsp)
* 2a: 89 de mov %ebx,%esi <-- trapping instruction
2c: 41 89 c6 mov %eax,%r14d
2f: 89 c7 mov %eax,%edi
31: e8 fc 4f d0 f8 callq 0xf8d05032
36: 41 39 de cmp %ebx,%r14d
39: 0f 85 20 ff ff ff jne 0xffffff5f
3f: e8 .byte 0xe8