INFO: task syz-executor.3:32073 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.3 D28160 32073 8101 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:00007ffca2b878d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000413d81
RDX: 0000001b2e020000 RSI: 0000000000001e92 RDI: 0000000000000003
RBP: 000000000071c980 R08: 00000000b77c7e92 R09: 00000000b77c7e96
R10: 00007ffca2b87a00 R11: 0000000000000293 R12: 0000000000000001
R13: 000000000071c980 R14: 0000000000722158 R15: 00007ffca2b879e0
Showing all locks held in the system:
1 lock held by khungtaskd/1093:
#0: ffffffff891a4080 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x279 kernel/locking/lockdep.c:5334
1 lock held by rsyslogd/7868:
#0: ffff888018693860 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:801
2 locks held by getty/7991:
#0: ffff88801ded0090 (&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/7992:
#0: ffff8880259ed090 (&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/7993:
#0: ffff888029e60090 (&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/7994:
#0: ffff88802a428090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc9000403a2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/7995:
#0: ffff888029eba090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc900040322e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/7996:
#0: ffff888022b03090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
#1: ffffc9000402e2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1c10 drivers/tty/n_tty.c:2156
2 locks held by getty/7997:
#0: ffff888029919090 (&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
4 locks held by syz-executor.2/32048:
1 lock held by syz-executor.3/32073:
#0: ffff888029e3a4a0 (&ctx->mutex){+.+.}, at: perf_event_ctx_lock_nested+0x296/0x4c0 kernel/events/core.c:1278
7 locks held by syz-executor.3/32074:
=============================================
NMI backtrace for cpu 3
CPU: 3 PID: 1093 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 3 to CPUs 0-2:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60
NMI backtrace for cpu 0
CPU: 0 PID: 32048 Comm: syz-executor.2 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_local_irq_restore arch/x86/include/asm/paravirt.h:752 [inline]
RIP: 0010:kmem_cache_free+0xab/0x320 mm/slab.c:3694
Code: e8 ba 26 00 00 84 c0 74 77 41 f7 c6 00 02 00 00 74 4f e8 08 a4 c8 ff 48 83 3d 58 70 61 07 00 0f 84 fa 01 00 00 4c 89 f7 57 9d <0f> 1f 44 00 00 4c 8b 6d 08 0f 1f 44 00 00 65 8b 05 38 ef 4f 7e 83
RSP: 0018:ffff88802d2097c0 EFLAGS: 00000282
RAX: 0000000000000007 RBX: ffff88801dff90c0 RCX: 0000000000000002
RDX: 0000000000000000 RSI: ffff88806eff9c50 RDI: 0000000000000282
RBP: ffff88802d2097e0 R08: 1ffffffff15377bd R09: fffffbfff15377be
R10: fffffbfff15377bd R11: ffffffff8a9bbdef R12: ffff88807aaef000
R13: ffffffff85c6d5cb R14: 0000000000000282 R15: ffff88801dff9140
FS: 00007f07a8f72700(0000) GS:ffff88802d200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000016e1000 CR3: 000000006f443000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kfree_skbmem net/core/skbuff.c:623 [inline]
kfree_skbmem+0xfb/0x1c0 net/core/skbuff.c:617
__kfree_skb net/core/skbuff.c:680 [inline]
consume_skb net/core/skbuff.c:838 [inline]
consume_skb+0x103/0x410 net/core/skbuff.c:832
packet_rcv+0xed/0x13e0 net/packet/af_packet.c:2152
dev_queue_xmit_nit+0x803/0xa20 net/core/dev.c:2221
xmit_one net/core/dev.c:3416 [inline]
dev_hard_start_xmit+0xbb/0x9b0 net/core/dev.c:3436
__dev_queue_xmit+0x2b05/0x35c0 net/core/dev.c:4013
dev_queue_xmit+0x18/0x20 net/core/dev.c:4046
hsr_xmit net/hsr/hsr_forward.c:228 [inline]
hsr_forward_do net/hsr/hsr_forward.c:285 [inline]
hsr_forward_skb+0xd29/0x1d30 net/hsr/hsr_forward.c:361
send_hsr_supervision_frame+0x8bf/0xf20 net/hsr/hsr_device.c:306
hsr_announce+0x12f/0x3b0 net/hsr/hsr_device.c:334
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 13 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 6a 96 01 00 74 20 fb 66 0f 1f 44 00 00 01 00 00 00 e8 e7 ab d3 f9 65 8b 05 18 54 85 78 85 c0 74 06 41
RSP: 0018:ffff888065d5fab0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff122668d RBX: ffff88806eff9340 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffff88806eff9bd4
RBP: ffff888065d5fab8 R08: ffff88806eff9340 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88802d237380
R13: ffffffff8907a1c0 R14: ffff88802582a6c0 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
__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
_raw_spin_unlock_irq+0x6f/0x80 kernel/locking/spinlock.c:199
spin_unlock_irq include/linux/spinlock.h:388 [inline]
get_signal+0x392/0x24f0 kernel/signal.c:2707
do_signal+0x87/0x1700 arch/x86/kernel/signal.c:815
exit_to_usermode_loop+0x286/0x380 arch/x86/entry/common.c:160
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: 0033:0x45a759
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:00007f07a8f71c88 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: 0000000000000003 RBX: 000000000071bf00 RCX: 000000000045a759
RDX: ffefffffffffffff RSI: 0000000000000000 RDI: 000000002001d000
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f07a8f726d4
R13: 00000000004aec17 R14: 00000000006f1cb0 R15: 00000000ffffffff
NMI backtrace for cpu 2
CPU: 2 PID: 32074 Comm: syz-executor.3 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_local_irq_restore arch/x86/include/asm/paravirt.h:752 [inline]
RIP: 0010:console_unlock+0xbb8/0xf00 kernel/printk/printk.c:2481
Code: 13 89 48 c1 e8 03 42 80 3c 30 00 0f 85 e4 02 00 00 48 83 3d 41 54 b5 07 00 0f 84 91 01 00 00 e8 fe fd 16 00 48 8b 7d 98 57 9d <0f> 1f 44 00 00 e9 6d ff ff ff e8 e9 fd 16 00 48 8b 7d 08 c7 05 db
RSP: 0018:ffff88802d4096b8 EFLAGS: 00000206
RAX: ffff8880273201c0 RBX: 0000000000000200 RCX: 0000000000000002
RDX: 0000000000000100 RSI: ffffffff815de022 RDI: 0000000000000206
RBP: ffff88802d409740 R08: 1ffffffff153779c R09: fffffbfff153779d
R10: fffffbfff153779c R11: ffffffff8a9bbce7 R12: 0000000000000000
R13: ffffffff845f9cc0 R14: dffffc0000000000 R15: ffffffff8980ddb0
FS: 00007f45eb6ce700(0000) GS:ffff88802d400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00005d000 CR3: 000000006f7a0000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
vprintk_emit+0x2a0/0x700 kernel/printk/printk.c:1996
vprintk_default+0x28/0x30 kernel/printk/printk.c:2023
vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:386
printk+0xba/0xed kernel/printk/printk.c:2056
dev_queue_xmit_nit.cold+0x3f/0x4b net/core/dev.c:2203
xmit_one net/core/dev.c:3416 [inline]
dev_hard_start_xmit+0xbb/0x9b0 net/core/dev.c:3436
__dev_queue_xmit+0x2b05/0x35c0 net/core/dev.c:4013
dev_queue_xmit+0x18/0x20 net/core/dev.c:4046
hsr_xmit net/hsr/hsr_forward.c:228 [inline]
hsr_forward_do net/hsr/hsr_forward.c:285 [inline]
hsr_forward_skb+0xd29/0x1d30 net/hsr/hsr_forward.c:361
send_hsr_supervision_frame+0x8bf/0xf20 net/hsr/hsr_device.c:306
hsr_announce+0x12f/0x3b0 net/hsr/hsr_device.c:334
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 13 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 6a 96 01 00 74 20 fb 66 0f 1f 44 00 00 01 00 00 00 e8 e7 ab d3 f9 65 8b 05 18 54 85 78 85 c0 74 06 41
RSP: 0018:ffff888067b278d8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff122668d RBX: ffff8880273201c0 RCX: 0000000000000006
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff888027320a54
RBP: ffff888067b278e0 R08: 1ffffffff15377c2 R09: fffffbfff15377c3
R10: fffffbfff15377c2 R11: ffffffff8a9bbe17 R12: ffff88802d437380
R13: ffff88802c4b43c0 R14: ffff88802582a6c0 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:00007f45eb6cdc88 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 000000000071bf00 RCX: 000000000045a759
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000380
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f45eb6ce6d4
R13: 00000000004aec17 R14: 00000000006f1cb0 R15: 00000000ffffffff