audit: type=1800 audit(1594244212.870:1756): pid=3442 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="file0" dev="overlay" ino=16118 res=0
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-...!: (10500 ticks this GP) idle=ade/1/0x4000000000000004 softirq=74250/74250 fqs=0
rcu: (t=10500 jiffies g=91253 q=610)
rcu: rcu_preempt kthread starved for 10500 jiffies! g91253 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt R running task 29208 10 2 0x80000000
Call Trace:
context_switch kernel/sched/core.c:2826 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3515
schedule+0x8d/0x1b0 kernel/sched/core.c:3559
schedule_timeout+0x4d8/0xef0 kernel/time/timer.c:1806
rcu_gp_kthread+0xdad/0x21c0 kernel/rcu/tree.c:2202
kthread+0x30b/0x410 kernel/kthread.c:246
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
NMI backtrace for cpu 1
CPU: 1 PID: 3418 Comm: syz-executor.0 Not tainted 4.19.131-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2fe lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1eb lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x15f/0x19c kernel/rcu/tree.c:1340
print_cpu_stall kernel/rcu/tree.c:1478 [inline]
check_cpu_stall kernel/rcu/tree.c:1550 [inline]
__rcu_pending kernel/rcu/tree.c:3293 [inline]
rcu_pending kernel/rcu/tree.c:3336 [inline]
rcu_check_callbacks.cold+0x62d/0xe19 kernel/rcu/tree.c:2682
update_process_times+0x2a/0x70 kernel/time/timer.c:1638
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:168
tick_sched_timer+0xfc/0x290 kernel/time/tick-sched.c:1278
__run_hrtimer kernel/time/hrtimer.c:1401 [inline]
__hrtimer_run_queues+0x3f6/0xe60 kernel/time/hrtimer.c:1463
hrtimer_interrupt+0x32a/0x930 kernel/time/hrtimer.c:1521
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1067 [inline]
smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1092
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 kernel/kcov.c:100
Code: 34 8e 87 4c 89 25 1c a5 26 0a 41 bc f4 ff ff ff e8 50 13 eb ff 48 c7 05 06 a5 26 0a 00 00 00 00 e9 39 ec ff ff 90 48 8b 34 24 <65> 48 8b 04 25 40 ee 01 00 65 8b 15 7c 45 98 7e 81 e2 00 01 1f 00
RSP: 0018:ffff8880ae707b70 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000101 RBX: 0000000013000001 RCX: ffffffff815a2a0f
RDX: 0000000000000000 RSI: ffffffff815a2a18 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88808417abf0 R14: ffffed101082f582 R15: 0000000000000000
get_timer_base kernel/time/timer.c:866 [inline]
lock_timer_base+0xf8/0x1b0 kernel/time/timer.c:937
__mod_timer kernel/time/timer.c:1010 [inline]
mod_timer+0x6c1/0xf30 kernel/time/timer.c:1102
pie_timer+0x67b/0x740 net/sched/sch_pie.c:438
call_timer_fn+0x177/0x700 kernel/time/timer.c:1326
expire_timers+0x243/0x4e0 kernel/time/timer.c:1363
__run_timers kernel/time/timer.c:1684 [inline]
run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1697
__do_softirq+0x26c/0x9a0 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:544 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1094
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
RIP: 0010:fdput include/linux/file.h:42 [inline]
RIP: 0010:__do_sys_fcntl fs/fcntl.c:466 [inline]
RIP: 0010:__se_sys_fcntl+0xaf/0x150 fs/fcntl.c:448
Code: 45 85 e4 75 77 e8 f1 39 bb ff 4c 89 fa 44 89 ee 48 89 ef e8 23 6b 6c 01 31 ff 4c 63 e0 4c 89 e6 e8 66 3b bb ff 4d 85 e4 74 37 cc 39 bb ff 83 e3 01 31 ff 89 de e8 30 3b bb ff 85 db 75 13 e8
RSP: 0018:ffff88803dae7ef0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff88808dbd9341 RCX: ffffc90005bd0000
RDX: 0000000000000b41 RSI: ffffffff81ae5e13 RDI: 0000000000000001
RBP: ffff88808dbd9340 R08: 0000000000000000 R09: ffffed1011b7b26e
R10: ffff88808dbd9373 R11: 000000007c1896b0 R12: 0000000000000000
R13: 0000000000000004 R14: 0000000000000004 R15: 0000000000042000
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45cba9
Code: 8d b6 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 5b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007feb5709ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000048
RAX: ffffffffffffffda RBX: 00000000004dcba0 RCX: 000000000045cba9
RDX: 0000000000042000 RSI: 0000000000000004 RDI: 0000000000000004
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000000cf R14: 00000000004c396e R15: 00007feb5709b6d4