rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-...!: (1 GPs behind) idle=38d/1/0x4000000000000000 softirq=139469/139470 fqs=18
(t=10500 jiffies g=260673 q=1768)
rcu: rcu_preempt kthread starved for 10455 jiffies! g260673 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:28696 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:4955 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6236
schedule+0xd3/0x270 kernel/sched/core.c:6315
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1959
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2132
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
</TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 27244 Comm: syz-executor.3 Not tainted 5.15.0-rc3-next-20210927-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kasan_quarantine_put+0x4/0x210 mm/kasan/quarantine.c:172
Code: df e8 e0 fe ff ff 48 89 ee 48 89 e7 e8 e5 fd ff ff 48 83 c4 20 5b 5d c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 56 41 55 <41> 54 49 89 fc 55 53 e8 30 d8 ff ff 48 85 c0 0f 84 c4 00 00 00 48
RSP: 0018:ffffc90000dc09f8 EFLAGS: 00000282
RAX: dffffc0000000000 RBX: ffffc90000dc0a88 RCX: 0000000000000001
RDX: 00000000000f6066 RSI: ffff88815023ec00 RDI: ffff888010c41c80
RBP: ffff888010c41c80 R08: 000000003d06546d R09: 0000000083e8c19f
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88815023ec00 R14: ffffc90000dc0a90 R15: ffff88815023ec00
FS: 00007fa75f9b4700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa75f9b4718 CR3: 000000014f81a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:1700 [inline]
slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1726
slab_free mm/slub.c:3492 [inline]
kfree+0xf6/0x560 mm/slub.c:4538
skb_free_head net/core/skbuff.c:653 [inline]
skb_release_data+0x65a/0x790 net/core/skbuff.c:675
skb_release_all net/core/skbuff.c:740 [inline]
__kfree_skb net/core/skbuff.c:754 [inline]
kfree_skb net/core/skbuff.c:772 [inline]
kfree_skb+0x133/0x3f0 net/core/skbuff.c:766
__netif_receive_skb_core+0x54f/0x3640 net/core/dev.c:5412
__netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:5436
__netif_receive_skb+0x24/0x1b0 net/core/dev.c:5552
process_backlog+0x2a5/0x6c0 net/core/dev.c:6429
__napi_poll+0xaf/0x440 net/core/dev.c:6988
napi_poll net/core/dev.c:7055 [inline]
net_rx_action+0x801/0xb40 net/core/dev.c:7142
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:lock_release+0x3f1/0x720 kernel/locking/lockdep.c:5633
Code: 7e 83 f8 01 0f 85 8d 01 00 00 9c 58 f6 c4 02 0f 85 78 01 00 00 48 f7 04 24 00 02 00 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c5 48 c7 45 00 00 00 00 00 c7 45 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc9000d65fbe0 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 5a86ab0430a2a1fc RCX: ffffc9000d65fc30
RDX: 1ffff1101689e4eb RSI: 0000000000000000 RDI: 0000000000000000
RBP: 1ffff92001acbf7e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000002 R14: ffff8880b44f2760 R15: ffff8880b44f1d00
__mutex_unlock_slowpath+0x99/0x5e0 kernel/locking/mutex.c:892
__do_sys_perf_event_open+0x1d39/0x3130 kernel/events/core.c:12358
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fa76245e709
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa75f9b4188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fa762563020 RCX: 00007fa76245e709
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000500
RBP: 00007fa7624b8cb4 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffce7f0c6af R14: 00007fa75f9b4300 R15: 0000000000022000
</TASK>
NMI backtrace for cpu 0
CPU: 0 PID: 27234 Comm: syz-executor.3 Not tainted 5.15.0-rc3-next-20210927-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<IRQ>
__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:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
rcu_pending kernel/rcu/tree.c:3882 [inline]
rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2601
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1428
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:task_stack_page include/linux/sched/task_stack.h:21 [inline]
RIP: 0010:in_task_stack+0x0/0x40 arch/x86/kernel/dumpstack.c:35
Code: 41 5d e9 63 00 00 00 4c 89 ee 48 c7 c7 80 88 79 8b e8 24 55 be fa e9 5c ff ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc <48> 8b 46 20 48 8d 88 00 80 00 00 48 39 f8 77 21 48 39 f9 76 1c 48
RSP: 0018:ffffc90000007660 EFLAGS: 00000286
RAX: dffffc0000000000 RBX: ffff888071773a00 RCX: ffffc90000007728
RDX: ffffc90000007708 RSI: ffff888071773a00 RDI: ffffc900000076b8
RBP: ffffc90000007708 R08: 0000000000000001 R09: ffffc90000007708
R10: fffff52000000eec R11: 0000000000000000 R12: ffffc900000076b8
R13: ffffc90000007708 R14: ffffc90000007740 R15: ffffc90000007708
get_stack_info_noinstr+0x14/0x120 arch/x86/kernel/dumpstack_64.c:173
get_stack_info+0x2d/0x90 arch/x86/kernel/dumpstack_64.c:199
__unwind_start+0x4ae/0x800 arch/x86/kernel/unwind_orc.c:668
unwind_start arch/x86/include/asm/unwind.h:60 [inline]
arch_stack_walk+0x5c/0xe0 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121
kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
__kasan_slab_alloc+0x90/0xc0 mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook mm/slab.h:519 [inline]
slab_alloc_node mm/slub.c:3213 [inline]
slab_alloc mm/slub.c:3221 [inline]
kmem_cache_alloc+0x209/0x390 mm/slub.c:3226
skb_clone+0x170/0x3c0 net/core/skbuff.c:1519
hsr_create_tagged_frame+0x173/0xb60 net/hsr/hsr_forward.c:251
hsr_forward_do net/hsr/hsr_forward.c:417 [inline]
hsr_forward_skb+0x84c/0x1620 net/hsr/hsr_forward.c:578
send_hsr_supervision_frame+0x60b/0x8d0 net/hsr/hsr_device.c:324
hsr_announce+0x109/0x330 net/hsr/hsr_device.c:382
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421
expire_timers kernel/time/timer.c:1466 [inline]
__run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734
__run_timers kernel/time/timer.c:1715 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:check_kcov_mode+0x7/0x40 kernel/kcov.c:163
Code: 00 e9 59 fe ff ff 48 8b 7c 24 08 e8 a3 4d 46 00 e9 61 fd ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc 65 8b 05 a9 36 8c 7e <89> c2 81 e2 00 01 00 00 a9 00 01 ff 00 74 10 31 c0 85 d2 74 15 8b
RSP: 0018:ffffc9000d547a28 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 000000000000000b RCX: ffff888071773a00
RDX: 0000000000040000 RSI: ffff888071773a00 RDI: 0000000000000003
RBP: ffff888072b01500 R08: 0000000000000000 R09: 000000000000000b
R10: ffffffff839fb41a R11: 0000000000000010 R12: 0000000000000010
R13: 000000000000009f R14: dffffc0000000000 R15: 0000000000000000
write_comp_data kernel/kcov.c:218 [inline]
__sanitizer_cov_trace_const_cmp1+0x22/0x80 kernel/kcov.c:270
tomoyo_domain_quota_is_ok+0x32a/0x550 security/tomoyo/util.c:1092
tomoyo_supervisor+0x2f2/0xf00 security/tomoyo/common.c:2089
tomoyo_audit_path_number_log security/tomoyo/file.c:235 [inline]
tomoyo_path_number_perm+0x419/0x590 security/tomoyo/file.c:734
security_file_ioctl+0x50/0xb0 security/security.c:1540
__do_sys_ioctl fs/ioctl.c:868 [inline]
__se_sys_ioctl fs/ioctl.c:860 [inline]
__x64_sys_ioctl+0xb3/0x200 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fa76245e709
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa75f9d5188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa762562f60 RCX: 00007fa76245e709
RDX: 000000002004dd80 RSI: 00000000d000943d RDI: 0000000000000003
RBP: 00007fa7624b8cb4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffce7f0c6af R14: 00007fa75f9d5300 R15: 0000000000022000
</TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
0: e8 e0 fe ff ff callq 0xfffffee5
5: 48 89 ee mov %rbp,%rsi
8: 48 89 e7 mov %rsp,%rdi
b: e8 e5 fd ff ff callq 0xfffffdf5
10: 48 83 c4 20 add $0x20,%rsp
14: 5b pop %rbx
15: 5d pop %rbp
16: c3 retq
17: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1)
1e: 00 00 00 00
22: 0f 1f 00 nopl (%rax)
25: 41 56 push %r14
27: 41 55 push %r13
* 29: 41 54 push %r12 <-- trapping instruction
2b: 49 89 fc mov %rdi,%r12
2e: 55 push %rbp
2f: 53 push %rbx
30: e8 30 d8 ff ff callq 0xffffd865
35: 48 85 c0 test %rax,%rax
38: 0f 84 c4 00 00 00 je 0x102
3e: 48 rex.W