rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (1 GPs behind) idle=c3fc/1/0x4000000000000000 softirq=30949/30951 fqs=5130
rcu: hardirqs softirqs csw/system
rcu: number: 4 0 0
rcu: cputime: 209 52280 3 ==> 52490(ms)
rcu: (t=10500 jiffies g=38977 q=1286 ncpus=2)
CPU: 1 PID: 4457 Comm: udevd Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:list_empty include/linux/list.h:292 [inline]
RIP: 0010:fq_pie_qdisc_dequeue+0x5fd/0x9c0 net/sched/sch_fq_pie.c:240
Code: 0f 85 56 03 00 00 4c 89 e8 4c 89 6b 08 48 c1 e8 03 42 80 3c 20 00 0f 85 33 03 00 00 49 89 5d 00 e9 56 fa ff ff e8 e3 d1 43 f9 <48> 8b 44 24 18 4c 8b 2c 24 42 80 3c 20 00 0f 85 04 03 00 00 48 8b
RSP: 0018:ffffc900001e0630 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff8880a181bb10 RCX: 0000000000000100
RDX: ffff88807d28bb80 RSI: ffffffff884051cd RDI: ffff8880a181bb18
RBP: ffff88807b207000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0200000000000000 R12: dffffc0000000000
R13: ffff88807b2072f0 R14: ffff88807b2072f0 R15: 0000000000000001
FS: 00007fcc84c8ec80(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f38f5a47410 CR3: 0000000029ece000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
dequeue_skb net/sched/sch_generic.c:292 [inline]
qdisc_restart net/sched/sch_generic.c:397 [inline]
__qdisc_run+0x1b2/0x1780 net/sched/sch_generic.c:415
__dev_xmit_skb net/core/dev.c:3868 [inline]
__dev_queue_xmit+0x21f9/0x3c10 net/core/dev.c:4210
dev_queue_xmit include/linux/netdevice.h:3085 [inline]
neigh_connected_output+0x3c2/0x550 net/core/neighbour.c:1581
neigh_output include/net/neighbour.h:544 [inline]
ip6_finish_output2+0x55a/0x1560 net/ipv6/ip6_output.c:134
__ip6_finish_output net/ipv6/ip6_output.c:195 [inline]
ip6_finish_output+0x69a/0x1170 net/ipv6/ip6_output.c:206
NF_HOOK_COND include/linux/netfilter.h:292 [inline]
ip6_output+0x1f1/0x540 net/ipv6/ip6_output.c:227
dst_output include/net/dst.h:458 [inline]
NF_HOOK include/linux/netfilter.h:303 [inline]
ndisc_send_skb+0xa63/0x1850 net/ipv6/ndisc.c:508
ndisc_send_rs+0x132/0x6f0 net/ipv6/ndisc.c:718
addrconf_rs_timer+0x3f1/0x870 net/ipv6/addrconf.c:3936
call_timer_fn+0x1a0/0x580 kernel/time/timer.c:1700
expire_timers+0x234/0x330 kernel/time/timer.c:1751
__run_timers kernel/time/timer.c:2022 [inline]
__run_timers kernel/time/timer.c:1995 [inline]
run_timer_softirq+0x326/0x910 kernel/time/timer.c:2035
__do_softirq+0x1d4/0x905 kernel/softirq.c:553
invoke_softirq kernel/softirq.c:427 [inline]
__irq_exit_rcu kernel/softirq.c:632 [inline]
irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:tomoyo_supervisor+0xa2/0xec0 security/tomoyo/common.c:2051
Code: 08 00 f2 f2 f2 c7 40 0c f2 f2 00 00 c7 40 14 f2 f2 f2 f2 c7 40 18 00 00 00 f3 c7 40 1c f3 f3 f3 f3 65 48 8b 04 25 28 00 00 00 <48> 89 84 24 38 01 00 00 31 c0 e8 8f d1 b4 fd 31 c0 b9 06 00 00 00
RSP: 0018:ffffc9000315f890 EFLAGS: 00000a02
RAX: e345a0f2b447ed00 RBX: ffffc9000315fb00 RCX: ffff88807ce2a000
RDX: ffffffff8a9f4f20 RSI: ffffffff8a9f7ac0 RDI: ffffc9000315fb00
RBP: ffffc9000315fa28 R08: 0000000000000003 R09: 00000000000000ff
R10: 0000000000000100 R11: 0000000000094001 R12: ffffffff8a9f7ac0
R13: fffff5200062bf63 R14: 1ffff9200062bf16 R15: dffffc0000000000
tomoyo_audit_path_log security/tomoyo/file.c:168 [inline]
tomoyo_path_permission security/tomoyo/file.c:587 [inline]
tomoyo_path_permission+0x270/0x3a0 security/tomoyo/file.c:573
tomoyo_path_perm+0x31c/0x430 security/tomoyo/file.c:838
security_inode_getattr+0xd3/0x140 security/security.c:2114
vfs_getattr fs/stat.c:167 [inline]
vfs_statx+0x16e/0x430 fs/stat.c:242
vfs_fstatat+0x90/0xb0 fs/stat.c:276
__do_sys_newfstatat+0x8a/0x110 fs/stat.c:446
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcc84d645f4
Code: 64 c7 00 09 00 00 00 83 c8 ff c3 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 00 00 00 00 41 89 ca b8 06 01 00 00 0f 05 <45> 31 c0 3d 00 f0 ff ff 76 10 48 8b 15 03 a8 0d 00 f7 d8 41 83 c8
RSP: 002b:00007ffe2154a018 EFLAGS: 00000202 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 0000562166b52d00 RCX: 00007fcc84d645f4
RDX: 00007ffe2154a030 RSI: 00007fcc84e01130 RDI: 000000000000000d
RBP: 0000562166b93e80 R08: 0000000000090800 R09: 0000562166b40810
R10: 0000000000001000 R11: 0000000000000202 R12: 00007ffe2154a030
R13: 00000000000000ff R14: 00005621650f91c4 R15: 0000000000000000