INFO: task syz-executor.1:8350 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.1 D28800 8350 7907 0x00000004
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_timeout+0x717/0xc50 kernel/time/timer.c:1871
do_wait_for_common kernel/sched/completion.c:83 [inline]
__wait_for_common kernel/sched/completion.c:104 [inline]
wait_for_common kernel/sched/completion.c:115 [inline]
wait_for_completion+0x29c/0x440 kernel/sched/completion.c:136
__wait_rcu_gp+0x225/0x2f0 kernel/rcu/update.c:374
synchronize_rcu.part.0+0xcf/0xe0 kernel/rcu/tree.c:2768
synchronize_rcu+0x27/0xa0 kernel/rcu/tree.c:2769
synchronize_net+0x4d/0x60 net/core/dev.c:9863
packet_set_ring+0x23c/0x1b60 net/packet/af_packet.c:4383
packet_setsockopt+0x530/0x2df0 net/packet/af_packet.c:3695
__sys_setsockopt+0x261/0x4c0 net/socket.c:2116
__do_sys_setsockopt net/socket.c:2132 [inline]
__se_sys_setsockopt net/socket.c:2129 [inline]
__x64_sys_setsockopt+0xbe/0x150 net/socket.c:2129
do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a759
Code: 8b 6c 24 20 48 83 c4 28 c3 48 8b 1d e1 67 67 01 48 8d 0c 19 48 8d 49 ff 48 ff cb 48 f7 d3 48 21 d9 e9 0c ff ff ff 48 8b 6c 24 <20> 48 83 c4 28 c3 48 89 d8 b9 00 00 40 00 e8 14 4f 00 00 4c 89 c0
RSP: 002b:00007f8148baac88 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 000000000071bf00 RCX: 000000000045a759
RDX: 000000000000000d RSI: 0000000000000107 RDI: 0000000000000003
RBP: 0000000000000005 R08: 0000000000000118 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 00007f8148bab6d4
R13: 00000000004b0a00 R14: 00000000006f5470 R15: 00000000ffffffff
Showing all locks held in the system:
1 lock held by khungtaskd/1114:
#0: ffffffff895a4080 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x279 kernel/locking/lockdep.c:5334
2 locks held by rsyslogd/7728:
#0: ffff8880279908e0 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:801
#1: ffff88802cc01818 (&(&parent->list_lock)->rlock){-.-.}, at: __might_fault+0xfb/0x1e0 mm/memory.c:4523
2 locks held by getty/7852:
#0: ffff8880267ef090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc900026de2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/7853:
#0: ffff88802aac5090 (&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/7854:
#0: ffff88802c474090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc900026f62e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/7855:
#0: ffff88802a3d0090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc900026fa2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/7856:
#0: ffff8880267ed090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc900040022e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/7857:
#0: ffff88802b5f4090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc900026e62e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/7858:
#0: ffff88802a577090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc900026d22e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
3 locks held by syz-executor.0/8346:
1 lock held by syz-executor.1/8350:
#0: ffff88802b7a6110 (sk_lock-AF_PACKET){+.+.}, at: lock_sock include/net/sock.h:1526 [inline]
#0: ffff88802b7a6110 (sk_lock-AF_PACKET){+.+.}, at: packet_setsockopt+0x447/0x2df0 net/packet/af_packet.c:3678
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1114 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 3 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60
NMI backtrace for cpu 2 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60
NMI backtrace for cpu 0
CPU: 0 PID: 8346 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:trace_hrtimer_expire_entry include/trace/events/timer.h:232 [inline]
RIP: 0010:__run_hrtimer kernel/time/hrtimer.c:1513 [inline]
RIP: 0010:__hrtimer_run_queues+0x2fb/0xe40 kernel/time/hrtimer.c:1576
Code: 28 48 8b b5 38 ff ff ff 48 8b bd 70 ff ff ff 48 89 85 48 ff ff ff e8 74 e4 54 06 0f 1f 44 00 00 e8 ba b4 0f 00 e8 b5 b4 0f 00 <65> 8b 1d e6 89 9c 7e bf 3f 00 00 00 89 de e8 22 b6 0f 00 83 fb 3f
RSP: 0018:ffff88802d2097d8 EFLAGS: 00000006
RAX: ffff8880298a8380 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000010100 RSI: ffffffff8165296b RDI: 0000000000000001
RBP: ffff88802d2098c8 R08: ffff8880298a8380 R09: ffffed1005a45279
R10: ffffed1005a45278 R11: ffff88802d2293c3 R12: 00000037a9368c77
R13: ffff888021937160 R14: ffff88802d229440 R15: dffffc0000000000
FS: 00007f4ab8318700(0000) GS:ffff88802d200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00187f000 CR3: 0000000072471000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1638
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:memcg_kmem_put_cache+0x0/0x50 mm/memcontrol.c:2934
Code: ff 4c 89 ff e8 01 50 f9 ff e9 17 fe ff ff 4c 89 f7 e8 f4 4f f9 ff e9 c4 fd ff ff 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <48> b8 00 00 00 00 00 fc ff df 55 48 89 e5 53 48 89 fb 48 83 ef 80
RSP: 0018:ffff88802d209a78 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: ffff888016a08cc0 RBX: 0000000000000a20 RCX: 000000000000000b
RDX: 0000000000000000 RSI: 000000000000000a RDI: ffff88807aad2000
RBP: ffff88802d209af0 R08: 00000000c0cf729b R09: ffff8880298a8c10
R10: fffffbfff146dba0 R11: ffffffff8a36dd07 R12: ffff88807aad2000
R13: ffff88807aad2000 R14: ffff888016a08cc0 R15: 0000000000000282
__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
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 01 00 00 00 e8 e7 6b 96 f9 65 8b 05 18 14 48 78 85 c0 74 06 41
RSP: 0018:ffff88807053f8d8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12a668d RBX: ffff8880298a8380 RCX: 0000000000000006
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff8880298a8c14
RBP: ffff88807053f8e0 R08: 1ffffffff15d29b8 R09: fffffbfff15d29b9
R10: fffffbfff15d29b8 R11: ffffffff8ae94dc7 R12: ffff88802d237380
R13: ffffffff8947a1c0 R14: ffff888025be2f40 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_common+0x4f/0xe0 kernel/sched/core.c:4236
preempt_schedule+0x4b/0x60 kernel/sched/core.c:4261
___preempt_schedule+0x16/0x18 arch/x86/entry/thunk_64.S:50
smp_call_function_single+0x410/0x480 kernel/smp.c:313
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:00007f4ab8317c88 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 000000000071bf00 RCX: 000000000045a759
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000080
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f4ab83186d4
R13: 00000000004aec2b R14: 00000000006f1ca8 R15: 00000000ffffffff