rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (10499 ticks this GP) idle=dd6c/1/0x4000000000000000 softirq=12655/12655 fqs=4437
rcu: hardirqs softirqs csw/system
rcu: number: 1281149 0 0
rcu: cputime: 18252 34217 67 ==> 52470(ms)
rcu: (t=10500 jiffies g=11225 q=1580 ncpus=2)
CPU: 0 PID: 5933 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:netif_skb_features+0x6ea/0x1510 net/core/dev.c:3598
Code: 80 3c 08 00 74 08 48 89 df e8 f2 3d 7a f9 48 8b 1b 48 83 c3 28 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 <74> 08 48 89 df e8 cc 3d 7a f9 4c 8b 23 4d 85 e4 0f 84 e2 00 00 00
RSP: 0018:ffffc90000007320 EFLAGS: 00000246
RAX: 1ffffffff1690fc1 RBX: ffffffff8b487e08 RCX: dffffc0000000000
RDX: ffffffff8862bf19 RSI: ffffffff8dfad580 RDI: 000000000000dd86
RBP: ffffc90000007430 R08: ffff88807bdbda00 R09: 0000000000000002
R10: 000000000000a888 R11: 0000000000000100 R12: 000000000000dd86
R13: ffff8880751d93c0 R14: ffff8880751d9474 R15: 1ffff1100ea3b28e
FS: 000055558dc31500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000077001000 CR4: 00000000003506f0
Call Trace:
validate_xmit_skb+0x88/0xf50 net/core/dev.c:3694
__dev_queue_xmit+0x1466/0x35a0 net/core/dev.c:4417
dev_queue_xmit include/linux/netdevice.h:3113 [inline]
neigh_hh_output include/net/neighbour.h:527 [inline]
neigh_output include/net/neighbour.h:541 [inline]
ip6_finish_output2+0xdf5/0x1650 net/ipv6/ip6_output.c:141
dst_output include/net/dst.h:467 [inline]
NF_HOOK include/linux/netfilter.h:304 [inline]
ndisc_send_skb+0xbed/0x14b0 net/ipv6/ndisc.c:513
addrconf_rs_timer+0x2bc/0x600 net/ipv6/addrconf.c:4006
call_timer_fn+0x16e/0x530 kernel/time/timer.c:1701
expire_timers kernel/time/timer.c:1752 [inline]
__run_timers+0x52d/0x7d0 kernel/time/timer.c:2023
run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2036
handle_softirqs+0x280/0x820 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0xc7/0x190 kernel/softirq.c:661
irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:preempt_schedule_irq+0xb0/0x140 kernel/sched/core.c:7009
Code: 44 24 20 f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 63 bf 01 00 00 00 e8 8b b3 eb f6 e8 26 3a 1c f7 fb bf 01 00 00 00 db b5 ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc900039c7960 EFLAGS: 00000286
RAX: 6568bdcf7b66b200 RBX: 0000000000000000 RCX: 6568bdcf7b66b200
RDX: dffffc0000000000 RSI: ffffffff8aaabce0 RDI: 0000000000000001
RBP: ffffc900039c7a10 R08: ffffffff8e4a212f R09: 1ffffffff1c94425
R10: dffffc0000000000 R11: fffffbfff1c94426 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000738f2c
irqentry_exit+0x67/0x70 kernel/entry/common.c:438
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:should_fail_ex+0x52/0x4d0 lib/fault-inject.c:125
Code: ac 77 b3 7b a9 00 01 ff 00 0f 84 ed 00 00 00 49 89 dd 49 c1 ed 03 43 80 7c 25 00 00 74 08 48 89 df e8 72 c0 8c fd 48 83 3b 00 <0f> 84 16 01 00 00 4c 8d 7b 20 4c 89 f8 48 c1 e8 03 42 0f b6 04 20
RSP: 0018:ffffc900039c7ad0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff8cd52ea0 RCX: ffff88807bdbda00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff8cd52ea0
RBP: 0000000000000000 R08: ffffc900039c7c97 R09: 0000000000000000
R10: ffffc900039c7c80 R11: fffff52000738f93 R12: dffffc0000000000
R13: 1ffffffff19aa5d4 R14: 0000000000000001 R15: ffff88807bdbefc4
should_fail_futex kernel/futex/core.c:82 [inline]
get_futex_key+0x12b/0x1020 kernel/futex/core.c:240
futex_wake+0x10b/0x4b0 kernel/futex/waitwake.c:154
do_futex+0x35d/0x3e0 kernel/futex/syscalls.c:139
__do_sys_futex kernel/futex/syscalls.c:211 [inline]
__se_sys_futex+0x36f/0x3f0 kernel/futex/syscalls.c:192
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fc3f8f8f749
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd56f2a2f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fc3f91e5fa8 RCX: 00007fc3f8f8f749
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc3f91e5fac
RBP: 0000000000000000 R08: 0000000000745d1e R09: 0000000356f2a5ef
R10: 0000000000000004 R11: 0000000000000246 R12: 00007fc3f91e5fac
R13: 00007fc3f91e5fa0 R14: 0000000000001300 R15: 0000000000000005