skbuff: skb_under_panic: text:ffffffff8a1740d8 len:112 put:40 head:ffff88802ac60000 data:ffff88802ac5ffe8 tail:0x58 end:0x180 dev:team0
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:213!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 16882 Comm: syz.3.3017 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:skb_panic+0x157/0x160 net/core/skbuff.c:213
Code: c7 20 2f 6e 8c 48 8b 74 24 08 48 8b 54 24 10 8b 0c 24 44 8b 44 24 04 4d 89 e9 50 55 41 57 41 56 e8 1e 95 f5 ff 48 83 c4 20 90 <0f> 0b cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900000074a0 EFLAGS: 00010286
RAX: 0000000000000087 RBX: dffffc0000000000 RCX: af1f1a703bfa1e00
RDX: 0000000000000100 RSI: 0000000000000103 RDI: 0000000000000000
RBP: 0000000000000180 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bbadfc R12: ffff88804c94f010
R13: ffff88802ac60000 R14: ffff88802ac5ffe8 R15: 0000000000000058
FS: 00007f25a0d7e6c0(0000) GS:ffff8881260b1000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c31e987 CR3: 0000000056a74000 CR4: 00000000003526f0
Call Trace:
skb_under_panic net/core/skbuff.c:223 [inline]
skb_push+0xc3/0xe0 net/core/skbuff.c:2641
ip6gre_header+0xc8/0x790 net/ipv6/ip6_gre.c:1371
dev_hard_header include/linux/netdevice.h:3435 [inline]
neigh_connected_output+0x286/0x460 net/core/neighbour.c:1618
neigh_output include/net/neighbour.h:556 [inline]
ip6_finish_output2+0xfb3/0x1480 net/ipv6/ip6_output.c:136
NF_HOOK_COND include/linux/netfilter.h:307 [inline]
ip6_output+0x340/0x550 net/ipv6/ip6_output.c:247
NF_HOOK include/linux/netfilter.h:318 [inline]
ndisc_send_skb+0xbce/0x1510 net/ipv6/ndisc.c:512
addrconf_rs_timer+0x369/0x670 net/ipv6/addrconf.c:4037
call_timer_fn+0x16e/0x590 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1799 [inline]
__run_timers kernel/time/timer.c:2373 [inline]
__run_timer_base+0x61a/0x860 kernel/time/timer.c:2385
run_timer_base kernel/time/timer.c:2394 [inline]
run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2404
handle_softirqs+0x27d/0x850 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723
irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110 kernel/locking/spinlock.c:194
Code: 74 05 e8 eb 29 7d f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 73 e5 44 f6 65 8b 05 ec 12 2b 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc900033b6d00 EFLAGS: 00000206
RAX: af1f1a703bfa1e00 RBX: 0000000000000a06 RCX: af1f1a703bfa1e00
RDX: 0000000000000006 RSI: ffffffff8d76bd39 RDI: 0000000000000001
RBP: ffffc900033b6d90 R08: ffffffff8f805a77 R09: 1ffffffff1f00b4e
R10: dffffc0000000000 R11: fffffbfff1f00b4f R12: dffffc0000000000
R13: 1ffff92000676ddc R14: ffff88813fffc180 R15: 1ffff92000676da0
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
rmqueue_bulk mm/page_alloc.c:2546 [inline]
__rmqueue_pcplist+0x1419/0x1df0 mm/page_alloc.c:3262
rmqueue_pcplist mm/page_alloc.c:3304 [inline]
rmqueue mm/page_alloc.c:3335 [inline]
get_page_from_freelist+0x91f/0x2440 mm/page_alloc.c:3876
__alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5183
__alloc_pages_noprof mm/page_alloc.c:5217 [inline]
alloc_pages_bulk_noprof+0x560/0x710 mm/page_alloc.c:5137
___alloc_pages_bulk mm/kasan/shadow.c:345 [inline]
__kasan_populate_vmalloc mm/kasan/shadow.c:370 [inline]
kasan_populate_vmalloc+0xd1/0x270 mm/kasan/shadow.c:435
alloc_vmap_area+0xd4e/0x1470 mm/vmalloc.c:2098
__get_vm_area_node+0x1f8/0x300 mm/vmalloc.c:3193
__vmalloc_node_range_noprof+0x30c/0x12d0 mm/vmalloc.c:3857
__kvmalloc_node_noprof+0x670/0x910 mm/slub.c:7150
translate_table+0x19b/0x2040 net/ipv6/netfilter/ip6_tables.c:695
do_replace net/ipv6/netfilter/ip6_tables.c:1154 [inline]
do_ip6t_set_ctl+0x970/0xce0 net/ipv6/netfilter/ip6_tables.c:1644
nf_setsockopt+0x26f/0x290 net/netfilter/nf_sockopt.c:101
smc_setsockopt+0x232/0xab0 net/smc/af_smc.c:3097
do_sock_setsockopt+0x17c/0x1b0 net/socket.c:2338
__sys_setsockopt net/socket.c:2363 [inline]
__do_sys_setsockopt net/socket.c:2369 [inline]
__se_sys_setsockopt net/socket.c:2366 [inline]
__x64_sys_setsockopt+0x13f/0x1b0 net/socket.c:2366
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f259ff8f749
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:00007f25a0d7e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f25a01e5fa0 RCX: 00007f259ff8f749
RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000005
RBP: 00007f25a0013f91 R08: 0000000000000330 R09: 0000000000000000
R10: 0000200000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f25a01e6038 R14: 00007f25a01e5fa0 R15: 00007ffd2df51a28
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:skb_panic+0x157/0x160 net/core/skbuff.c:213
Code: c7 20 2f 6e 8c 48 8b 74 24 08 48 8b 54 24 10 8b 0c 24 44 8b 44 24 04 4d 89 e9 50 55 41 57 41 56 e8 1e 95 f5 ff 48 83 c4 20 90 <0f> 0b cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900000074a0 EFLAGS: 00010286
RAX: 0000000000000087 RBX: dffffc0000000000 RCX: af1f1a703bfa1e00
RDX: 0000000000000100 RSI: 0000000000000103 RDI: 0000000000000000
RBP: 0000000000000180 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bbadfc R12: ffff88804c94f010
R13: ffff88802ac60000 R14: ffff88802ac5ffe8 R15: 0000000000000058
FS: 00007f25a0d7e6c0(0000) GS:ffff8881260b1000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c31e987 CR3: 0000000056a74000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
0: 74 05 je 0x7
2: e8 eb 29 7d f6 call 0xf67d29f2
7: 48 c7 44 24 20 00 00 movq $0x0,0x20(%rsp)
e: 00 00
10: 9c pushf
11: 8f 44 24 20 pop 0x20(%rsp)
15: f6 44 24 21 02 testb $0x2,0x21(%rsp)
1a: 75 4f jne 0x6b
1c: f7 c3 00 02 00 00 test $0x200,%ebx
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 73 e5 44 f6 call 0xf644e5a2 <-- trapping instruction
2f: 65 8b 05 ec 12 2b 07 mov %gs:0x72b12ec(%rip),%eax # 0x72b1322
36: 85 c0 test %eax,%eax
38: 74 40 je 0x7a
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: 04 24 add $0x24,%al
3e: 0e (bad)
3f: 36 ss