rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (10501 ticks this GP) idle=8084/1/0x4000000000000000 softirq=18104/18104 fqs=5228
rcu: hardirqs softirqs csw/system
rcu: number: 1362650 0 0
rcu: cputime: 17572 34916 63 ==> 52520(ms)
rcu: (t=10504 jiffies g=19481 q=1929 ncpus=2)
CPU: 0 PID: 7471 Comm: syz.1.535 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:nearest_obj include/linux/slub_def.h:174 [inline]
RIP: 0010:__kasan_record_aux_stack+0x5a/0xc0 mm/kasan/generic.c:486
Code: c0 0f 94 c2 08 ca 75 7a 4c 8b 78 08 48 89 c1 48 c1 e1 06 48 bf 00 00 00 00 80 08 05 00 48 01 cf 4c 89 f1 48 29 f9 45 8b 47 18 <48> 89 c6 48 89 c8 48 99 49 f7 f8 49 29 d6 0f b7 76 2a 81 e6 ff 7f
RSP: 0018:ffffc900000074e0 EFLAGS: 00000202
RAX: ffffea000071ec40 RBX: 0000000000000000 RCX: 0000000000000e10
RDX: fffffffde0bb1e00 RSI: ffffffff8acae160 RDI: ffff88801c7b1000
RBP: ffffc90000007640 R08: 0000000000000140 R09: 1ffffffff1ed8b5d
R10: dffffc0000000000 R11: fffffbfff1ed8b5e R12: dffffc0000000000
R13: 1ffff92000000eb0 R14: ffff88801c7b1e10 R15: ffff88802c63fc80
FS: 00007fabce1076c0(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 0000000079b3f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
__call_rcu_common kernel/rcu/tree.c:2721 [inline]
call_rcu+0x153/0x900 kernel/rcu/tree.c:2837
refdst_drop include/net/dst.h:273 [inline]
skb_dst_drop include/net/dst.h:285 [inline]
skb_release_head_state+0x71/0x240 net/core/skbuff.c:1037
skb_release_all net/core/skbuff.c:1052 [inline]
__kfree_skb net/core/skbuff.c:1068 [inline]
kfree_skb_reason+0xd7/0x170 net/core/skbuff.c:1104
kfree_skb include/linux/skbuff.h:1264 [inline]
neigh_connected_output+0x3e8/0x460 net/core/neighbour.c:1600
neigh_output include/net/neighbour.h:547 [inline]
ip6_finish_output2+0xf7a/0x1690 net/ipv6/ip6_output.c:143
dst_output include/net/dst.h:470 [inline]
NF_HOOK include/linux/netfilter.h:304 [inline]
ndisc_send_skb+0xbb9/0x1480 net/ipv6/ndisc.c:513
addrconf_rs_timer+0x36b/0x640 net/ipv6/addrconf.c:4043
call_timer_fn+0x189/0x540 kernel/time/timer.c:1701
expire_timers kernel/time/timer.c:1752 [inline]
__run_timers+0x570/0x810 kernel/time/timer.c:2023
run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2036
handle_softirqs+0x27d/0x820 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0xd3/0x190 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:generic_exec_single+0x477/0x4e0 kernel/smp.c:418
Code: 75 11 e8 2c 10 0b 00 48 85 db 75 16 e8 22 10 0b 00 eb 15 e8 1b 10 0b 00 e8 76 8a 16 09 48 85 db 74 ea e8 0c 10 0b 00 fb 31 c0 <48> c7 44 24 20 0e 36 e0 45 4b c7 04 2c 00 00 00 00 43 c7 44 2c 08
RSP: 0018:ffffc9000476fa00 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffff888030268000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000476fad0 R08: ffffffff91ff1607 R09: 1ffffffff23fe2c0
R10: dffffc0000000000 R11: fffffbfff23fe2c1 R12: 1ffff920008edf44
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920008edf65
smp_call_function_single+0x36d/0x5a0 kernel/smp.c:647
task_function_call kernel/events/core.c:120 [inline]
perf_install_in_context+0x5bb/0x920 kernel/events/core.c:2958
__do_sys_perf_event_open kernel/events/core.c:12967 [inline]
__se_sys_perf_event_open+0x1818/0x1d40 kernel/events/core.c:12609
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fabcd19f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fabce107028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fabcd426090 RCX: 00007fabcd19f559
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000001c80
RBP: 00007fabcd236b20 R08: 0000000000000002 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fabcd426128 R14: 00007fabcd426090 R15: 00007fffcc7d5b08