rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (1 GPs behind) idle=3a84/1/0x4000000000000000 softirq=48163/48168 fqs=4837
rcu: hardirqs softirqs csw/system
rcu: number: 1327642 0 0
rcu: cputime: 16637 35842 81 ==> 52500(ms)
rcu: (t=10502 jiffies g=63893 q=832 ncpus=2)
CPU: 1 PID: 13738 Comm: syz.1.2478 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:127 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:178 [inline]
RIP: 0010:kasan_check_range+0x89/0x290 mm/kasan/generic.c:187
Code: 00 fc ff df 4d 8d 34 19 4d 89 f4 4d 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 3d 01 00 00 4c 89 cb 48 f7 d3 4c 01 fb 41 80 3b 00 <0f> 85 8d 01 00 00 49 ff c3 48 ff c3 75 ee e9 1d 01 00 00 44 89 dd
RSP: 0018:ffffc900001efce0 EFLAGS: 00000246
RAX: ffffc900001f0401 RBX: ffffffffffffffff RCX: ffffffff887804e9
RDX: 0000000000000000 RSI: 0000000000000010 RDI: ffff88807b89f428
RBP: ffffc900001f0358 R08: ffff88807b89f437 R09: 1ffff1100f713e86
R10: dffffc0000000000 R11: ffffed100f713e86 R12: 0000000000000002
R13: ffffc900001f03e0 R14: ffffed100f713e87 R15: 1ffff1100f713e85
FS: 00007ff8eb9f66c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 000000005ed82000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
__asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105
__skb_flow_dissect+0x24c9/0x6d60 net/core/flow_dissector.c:1244
skb_flow_dissect_flow_keys include/linux/skbuff.h:1544 [inline]
___skb_get_hash net/core/flow_dissector.c:1801 [inline]
__skb_get_hash+0xf3/0x2e0 net/core/flow_dissector.c:1866
skb_get_hash include/linux/skbuff.h:1586 [inline]
skb_tx_hash net/core/dev.c:3312 [inline]
netdev_pick_tx+0x3bd/0xc20 net/core/dev.c:4283
netdev_core_pick_tx+0x132/0x340 net/core/dev.c:4316
__dev_queue_xmit+0x9e0/0x3660 net/core/dev.c:4398
neigh_output include/net/neighbour.h:543 [inline]
ip6_finish_output2+0xe3d/0x1630 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+0xc26/0x14f0 net/ipv6/ndisc.c:513
addrconf_rs_timer+0x2d5/0x630 net/ipv6/addrconf.c:4024
call_timer_fn+0x189/0x540 kernel/time/timer.c:1701
expire_timers kernel/time/timer.c:1752 [inline]
__run_timers+0x542/0x800 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+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+0x481/0x4f0 kernel/smp.c:418
Code: 75 11 e8 42 05 0b 00 48 85 db 75 16 e8 38 05 0b 00 eb 15 e8 31 05 0b 00 e8 bc 08 0a 09 48 85 db 74 ea e8 22 05 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:ffffc9000522fa00 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000080000
RDX: ffffc9000ee41000 RSI: 000000000000379e RDI: 000000000000379f
RBP: ffffc9000522fad0 R08: ffffffff911c45ff R09: 1ffffffff22388bf
R10: dffffc0000000000 R11: fffffbfff22388c0 R12: 1ffff92000a45f44
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000a45f65
smp_call_function_single+0x36d/0x5a0 kernel/smp.c:647
task_function_call kernel/events/core.c:120 [inline]
perf_install_in_context+0x5be/0x920 kernel/events/core.c:2959
__do_sys_perf_event_open kernel/events/core.c:12957 [inline]
__se_sys_perf_event_open+0x1836/0x1c50 kernel/events/core.c:12609
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ff8ed79c819
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:00007ff8eb9f6028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007ff8eda15fa0 RCX: 00007ff8ed79c819
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000480
RBP: 00007ff8ed832c91 R08: 000000000000000b R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff8eda16038 R14: 00007ff8eda15fa0 R15: 00007ffc08b481f8