skbuff: skb_over_panic: text:ffffffff843b87ee len:76 put:20 head:ffff88815665fc00 data:ffff88815665fc40 tail:0x8c end:0x80 dev:syztnl0
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kernel BUG at net/core/skbuff.c:110!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.10.93-syzkaller-01028-g0347b1658399 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:skb_panic+0x14f/0x160 net/core/skbuff.c:106
Code: 87 85 48 8b 75 c0 48 8b 55 b8 8b 4d d4 44 8b 45 d0 4c 8b 4d c8 b8 00 00 00 00 53 41 56 41 55 41 54 e8 0c 3f 89 fd 48 83 c4 20 <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 48 89 e5 41
RSP: 0018:ffffc90000160af8 EFLAGS: 00010282
RAX: 0000000000000086 RBX: ffff888154a82000 RCX: 20b03704a2008d00
RDX: 0000000000000503 RSI: 0000000000000503 RDI: 0000000000000000
RBP: ffffc90000160b40 R08: ffffffff815457c8 R09: ffffed103ee2a5d8
R10: ffffed103ee2a5d8 R11: 0000000000000000 R12: ffff88815665fc40
R13: 000000000000008c R14: 0000000000000080 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556a74b38 CR3: 000000014f6e2000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
skb_over_panic+0x2c/0x30 net/core/skbuff.c:115
skb_put+0x205/0x210 net/core/skbuff.c:1877
add_grhead net/ipv6/mcast.c:1711 [inline]
add_grec+0xf5e/0x1370 net/ipv6/mcast.c:1838
mld_send_cr net/ipv6/mcast.c:1964 [inline]
mld_ifc_timer_expire+0x781/0xc50 net/ipv6/mcast.c:2471
call_timer_fn+0x35/0x280 kernel/time/timer.c:1420
expire_timers+0x21f/0x3b0 kernel/time/timer.c:1465
__run_timers+0x548/0x680 kernel/time/timer.c:1756
run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1769
__do_softirq+0x27e/0x598 kernel/softirq.c:305
asm_call_irq_on_stack+0xf/0x20
__run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
do_softirq_own_stack+0x60/0x80 arch/x86/kernel/irq_64.c:77
invoke_softirq kernel/softirq.c:402 [inline]
__irq_exit_rcu+0x128/0x150 kernel/softirq.c:432
irq_exit_rcu+0x9/0x10 kernel/softirq.c:444
sysvec_apic_timer_interrupt+0xbf/0xe0 arch/x86/kernel/apic/apic.c:1095
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:49 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:89 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:114 [inline]
RIP: 0010:acpi_idle_do_entry+0xbb/0x1f0 drivers/acpi/processor_idle.c:558
Code: 89 de 48 83 e6 08 31 ff e8 22 4a cf fc 48 83 e3 08 0f 85 ae 00 00 00 e9 0c 00 00 00 e8 4e 45 cf fc 0f 00 2d a7 0c b4 00 fb f4 e9 a1 00 00 00 49 83 c6 04 4c 89 f0 48 c1 e8 03 42 8a 04 38 84
RSP: 0018:ffffc900000f7c48 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff849da5f7
RDX: ffff8881002813c0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900000f7c60 R08: ffffffff849da61e R09: ffffed1020050279
R10: ffffed1020050279 R11: 0000000000000000 R12: 0000000000000001
R13: ffff888101d8f804 R14: ffff888105988064 R15: dffffc0000000000
acpi_idle_enter+0x32d/0x4f0 drivers/acpi/processor_idle.c:693
cpuidle_enter_state+0x5d1/0x1470 drivers/cpuidle/cpuidle.c:249
cpuidle_enter+0x5f/0xa0 drivers/cpuidle/cpuidle.c:364
call_cpuidle kernel/sched/idle.c:160 [inline]
cpuidle_idle_call kernel/sched/idle.c:241 [inline]
do_idle+0x420/0x5e0 kernel/sched/idle.c:302
cpu_startup_entry+0x25/0x30 kernel/sched/idle.c:398
start_secondary+0xd7/0xe0 arch/x86/kernel/smpboot.c:265
secondary_startup_64_no_verify+0xb0/0xbb
Modules linked in:
---[ end trace 8d9227b289129fc6 ]---
RIP: 0010:skb_panic+0x14f/0x160 net/core/skbuff.c:106
Code: 87 85 48 8b 75 c0 48 8b 55 b8 8b 4d d4 44 8b 45 d0 4c 8b 4d c8 b8 00 00 00 00 53 41 56 41 55 41 54 e8 0c 3f 89 fd 48 83 c4 20 <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 48 89 e5 41
RSP: 0018:ffffc90000160af8 EFLAGS: 00010282
RAX: 0000000000000086 RBX: ffff888154a82000 RCX: 20b03704a2008d00
RDX: 0000000000000503 RSI: 0000000000000503 RDI: 0000000000000000
RBP: ffffc90000160b40 R08: ffffffff815457c8 R09: ffffed103ee2a5d8
R10: ffffed103ee2a5d8 R11: 0000000000000000 R12: ffff88815665fc40
R13: 000000000000008c R14: 0000000000000080 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556a74b38 CR3: 000000000640f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 89 de mov %ebx,%esi
2: 48 83 e6 08 and $0x8,%rsi
6: 31 ff xor %edi,%edi
8: e8 22 4a cf fc callq 0xfccf4a2f
d: 48 83 e3 08 and $0x8,%rbx
11: 0f 85 ae 00 00 00 jne 0xc5
17: e9 0c 00 00 00 jmpq 0x28
1c: e8 4e 45 cf fc callq 0xfccf456f
21: 0f 00 2d a7 0c b4 00 verw 0xb40ca7(%rip) # 0xb40ccf
28: fb sti
29: f4 hlt
* 2a: fa cli <-- trapping instruction
2b: e9 a1 00 00 00 jmpq 0xd1
30: 49 83 c6 04 add $0x4,%r14
34: 4c 89 f0 mov %r14,%rax
37: 48 c1 e8 03 shr $0x3,%rax
3b: 42 8a 04 38 mov (%rax,%r15,1),%al
3f: 84 .byte 0x84