INFO: task syz-executor.0:8005 blocked for more than 143 seconds.
Not tainted 5.4.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0 D28144 8005 7932 0x00004004
Call Trace:
context_switch kernel/sched/core.c:3385 [inline]
__schedule+0x8e1/0x1f30 kernel/sched/core.c:4081
schedule+0xdc/0x2b0 kernel/sched/core.c:4155
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:4214
__mutex_lock_common kernel/locking/mutex.c:1036 [inline]
__mutex_lock+0x7ab/0x13c0 kernel/locking/mutex.c:1106
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1121
perf_event_ctx_lock_nested+0x296/0x4c0 kernel/events/core.c:1278
perf_event_ctx_lock kernel/events/core.c:1291 [inline]
perf_event_release_kernel+0x121/0xef0 kernel/events/core.c:4736
perf_release+0x37/0x50 kernel/events/core.c:4834
__fput+0x2ff/0x890 fs/file_table.c:280
____fput+0x16/0x20 fs/file_table.c:313
task_work_run+0x145/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:188 [inline]
exit_to_usermode_loop+0x316/0x380 arch/x86/entry/common.c:164
prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
syscall_return_slowpath arch/x86/entry/common.c:278 [inline]
do_syscall_64+0x676/0x790 arch/x86/entry/common.c:304
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x413d81
Code: 89 44 24 10 e8 40 c1 04 00 48 8b 6c 24 18 48 83 c4 20 c3 48 8b 4c 24 30 48 89 0c 24 48 8b 4c 24 38 48 89 4c 24 08 48 89 44 24 <10> e8 99 0c 00 00 48 8b 44 24 40 eb b5 48 8b 44 24 40 eb ae 48 8b
RSP: 002b:00007ffc611b1920 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000413d81
RDX: 0000000000000000 RSI: 0000000000000c65 RDI: 0000000000000004
RBP: 000000000071c980 R08: 00000000e1114c65 R09: 00000000e1114c69
R10: 00007ffc611b1a50 R11: 0000000000000293 R12: 0000000000000001
R13: 000000000071c980 R14: 0000000000722080 R15: 00007ffc611b1a30
Showing all locks held in the system:
1 lock held by khungtaskd/1113:
#0: ffffffff895a4080 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x279 kernel/locking/lockdep.c:5334
1 lock held by rsyslogd/7752:
#0: ffff88802b75bde0 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:801
2 locks held by getty/7876:
#0: ffff8880265b0090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc9000401a2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/7877:
#0: ffff88802473e090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc900026fe2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/7878:
#0: ffff88801bff8090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc900040162e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/7879:
#0: ffff88802c3ff090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc900040222e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/7880:
#0: ffff88801bf55090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc9000401e2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/7881:
#0: ffff888022c9a090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc9000400a2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/7882:
#0: ffff88802bb5f090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc900026f22e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
1 lock held by syz-executor.0/8005:
#0: ffff888025ae78a0 (&ctx->mutex){+.+.}, at: perf_event_ctx_lock_nested+0x296/0x4c0 kernel/events/core.c:1278
3 locks held by syz-executor.0/8007:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1113 Comm: khungtaskd Not tainted 5.4.0-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x197/0x210 lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x70/0xb2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x23b/0x28b lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline]
watchdog+0xb11/0x10c0 kernel/hung_task.c:289
kthread+0x361/0x430 kernel/kthread.c:255
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 1 to CPUs 0,2-3:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60
NMI backtrace for cpu 3 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60
NMI backtrace for cpu 2
CPU: 2 PID: 8007 Comm: syz-executor.0 Not tainted 5.4.0-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:25 [inline]
RIP: 0010:static_key_false include/linux/jump_label.h:200 [inline]
RIP: 0010:native_write_msr+0x6/0x30 arch/x86/include/asm/msr.h:164
Code: d0 c3 0f 21 d8 c3 0f 21 f0 c3 0f 0b 0f 1f 84 00 00 00 00 00 0f 0b 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 89 f9 89 f0 0f 30 <0f> 1f 44 00 00 c3 55 48 c1 e2 20 89 f6 48 89 e5 48 09 d6 31 d2 e8
RSP: 0018:ffff88802d409468 EFLAGS: 00000082
RAX: 000000001d7d25ce RBX: 0000000000000000 RCX: 00000000000006e0
RDX: 0000000000000072 RSI: 000000001d7d25ce RDI: 00000000000006e0
RBP: ffff88802d409480 R08: ffff888010758300 R09: ffff888010758b90
R10: fffffbfff146dba0 R11: ffffffff8a36dd07 R12: ffff88802d4227c0
R13: 00000000000000fa R14: 0000000000000000 R15: 0000000000000000
FS: 00007fa5470a7700(0000) GS:ffff88802d400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600400 CR3: 000000000f336000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
clockevents_program_event+0x25c/0x370 kernel/time/clockevents.c:334
tick_program_event+0xb4/0x130 kernel/time/tick-oneshot.c:44
hrtimer_interrupt+0x369/0x770 kernel/time/hrtimer.c:1651
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline]
smp_apic_timer_interrupt+0x160/0x610 arch/x86/kernel/apic/apic.c:1135
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
RIP: 0010:stack_trace_consume_entry+0x10d/0x190 kernel/stacktrace.c:93
Code: 92 00 00 00 41 8d 44 24 01 89 43 10 48 8b 03 4e 8d 24 e0 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 80 3c 02 00 75 62 <4d> 89 2c 24 44 8b 63 10 8b 5b 08 44 89 e7 89 de e8 2e 2c 11 00 41
RSP: 0018:ffff88802d409698 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: dffffc0000000000 RBX: ffff88802d409788 RCX: ffffffff8163b292
RDX: 1ffff11005a81304 RSI: ffffffff8163b29c RDI: 0000000000000005
RBP: ffff88802d4096c0 R08: ffff888010758300 R09: ffff88802d409728
R10: ffff88802d4096f8 R11: ffff88802d409708 R12: ffff88802d409820
R13: ffffffff81b1e6ff R14: 0000000000000000 R15: 0000000000000000
arch_stack_walk+0x71/0xf0 arch/x86/kernel/stacktrace.c:27
stack_trace_save+0xac/0xe0 kernel/stacktrace.c:123
save_stack+0x23/0x90 mm/kasan/common.c:69
set_track mm/kasan/common.c:77 [inline]
__kasan_kmalloc mm/kasan/common.c:510 [inline]
__kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:483
kasan_slab_alloc+0xf/0x20 mm/kasan/common.c:518
slab_post_alloc_hook mm/slab.h:584 [inline]
slab_alloc_node mm/slab.c:3262 [inline]
kmem_cache_alloc_node+0x138/0x740 mm/slab.c:3574
__alloc_skb+0xd5/0x5e0 net/core/skbuff.c:197
alloc_skb include/linux/skbuff.h:1049 [inline]
ndisc_alloc_skb+0x13c/0x340 net/ipv6/ndisc.c:417
ndisc_send_rs+0x39b/0x720 net/ipv6/ndisc.c:683
addrconf_rs_timer+0x30f/0x6e0 net/ipv6/addrconf.c:3879
call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404
expire_timers kernel/time/timer.c:1449 [inline]
__run_timers kernel/time/timer.c:1773 [inline]
__run_timers kernel/time/timer.c:1740 [inline]
run_timer_softirq+0x6c3/0x1790 kernel/time/timer.c:1786
__do_softirq+0x262/0x98c kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x19b/0x1e0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1137
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
</IRQ>
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x4f/0x80 kernel/locking/spinlock.c:199
Code: c0 68 34 53 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 33 48 83 3d 12 2a 99 01 00 74 20 fb 66 0f 1f 44 00 00 <bf> 01 00 00 00 e8 e7 6b 96 f9 65 8b 05 18 14 48 78 85 c0 74 06 41
RSP: 0018:ffff888072ce78a0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12a668d RBX: ffff888010758300 RCX: 0000000000000006
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff888010758b94
RBP: ffff888072ce78a8 R08: 1ffffffff15d29b8 R09: fffffbfff15d29b9
R10: fffffbfff15d29b8 R11: ffffffff8ae94dc7 R12: ffff88802d437380
R13: ffff88802c4bc3c0 R14: ffff888023fc0bc0 R15: 0000000000000000
finish_lock_switch kernel/sched/core.c:3124 [inline]
finish_task_switch+0x147/0x750 kernel/sched/core.c:3224
context_switch kernel/sched/core.c:3388 [inline]
__schedule+0x8e9/0x1f30 kernel/sched/core.c:4081
preempt_schedule_irq+0xb5/0x160 kernel/sched/core.c:4338
retint_kernel+0x1b/0x2b
RIP: 0010:smp_call_function_single+0x410/0x480 kernel/smp.c:313
Code: 41 89 c5 e9 b7 fd ff ff e8 6d 25 0b 00 0f 0b e9 e6 fc ff ff e8 61 25 0b 00 0f 0b e9 41 fd ff ff e8 55 25 0b 00 e8 a9 ae 96 ff <e9> ba fd ff ff e8 46 25 0b 00 0f 0b 48 8b 3c 24 e8 bb 52 48 00 e9
RSP: 0018:ffff888072ce7ac0 EFLAGS: 00010246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000040000 RBX: 1ffff1100e59cf5c RCX: ffffc9000408c000
RDX: 00000000000034da RSI: ffffffff8169b8cb RDI: 0000000000000005
RBP: ffff888072ce7b90 R08: ffff888010758300 R09: fffffbfff15d29b9
R10: fffffbfff15d29b8 R11: ffffffff8ae94dc7 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff818d85c0
task_function_call+0xe9/0x180 kernel/events/core.c:114
perf_install_in_context+0x308/0x5a0 kernel/events/core.c:2746
__do_sys_perf_event_open+0x1cbc/0x2c70 kernel/events/core.c:11543
__se_sys_perf_event_open kernel/events/core.c:11151 [inline]
__x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:11151
do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a759
Code: bd b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 8b b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fa5470a6c88 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 000000000071bf00 RCX: 000000000045a759
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 000000002001d000
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fa5470a76d4
R13: 00000000004aec2b R14: 00000000006f1ca8 R15: 00000000ffffffff