IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready
skbuff: skb_over_panic: text:00000000cd95feff len:56 put:8 head:000000004d2f7ba1 data:000000006060ab81 tail:0xc8 end:0xc0 dev:ip6tnl0
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:104!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
Modules linked in:
CPU: 0 PID: 21826 Comm: syz-executor.0 Not tainted 4.14.155-syzkaller #0
task: 000000004b73358b task.stack: 00000000de58a51f
RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:104
RSP: 0018:ffff8881dba079d8 EFLAGS: 00010286
RAX: 0000000000000085 RBX: ffff8881cc2b0000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff9f66a380 RDI: ffffed103b740f2d
RBP: ffffffff9f889fe0 R08: 0000000000000085 R09: ffffed103b744ce9
R10: ffffed103b744ce8 R11: ffff8881dba26747 R12: ffffffff9ef85d2e
R13: 0000000000000008 R14: ffff8881d2dc4400 R15: 00000000000000c0
FS:  00007f6a1ef05700(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c925000 CR3: 00000001c9108003 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 skb_over_panic net/core/skbuff.c:109 [inline]
 skb_put.cold+0x24/0x24 net/core/skbuff.c:1699
 mld_newpack+0x4ce/0x7a0 net/ipv6/mcast.c:1608
 add_grhead.isra.0+0x29c/0x370 net/ipv6/mcast.c:1691
 add_grec+0x6a3/0xf10 net/ipv6/mcast.c:1822
 mld_send_cr net/ipv6/mcast.c:1948 [inline]
 mld_ifc_timer_expire+0x340/0x7e0 net/ipv6/mcast.c:2455
 call_timer_fn+0x15b/0x6a0 kernel/time/timer.c:1279
 expire_timers+0x227/0x4c0 kernel/time/timer.c:1318
 __run_timers kernel/time/timer.c:1636 [inline]
 run_timer_softirq+0x1eb/0x5d0 kernel/time/timer.c:1649
 __do_softirq+0x234/0x9ec kernel/softirq.c:288
 invoke_softirq kernel/softirq.c:368 [inline]
 irq_exit+0x114/0x150 kernel/softirq.c:409
 exiting_irq arch/x86/include/asm/apic.h:648 [inline]
 smp_apic_timer_interrupt+0x1a7/0x650 arch/x86/kernel/apic/apic.c:1102
 apic_timer_interrupt+0x8c/0xa0 arch/x86/entry/entry_64.S:792
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline]
RIP: 0010:lock_release+0x3de/0x740 kernel/locking/lockdep.c:4016
RSP: 0018:ffff88819d20f6f0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000007 RBX: 1ffff11033a41ee1 RCX: 1ffff110345c53f4
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000246
RBP: ffff8881a2e29780 R08: 0000000000000001 R09: 0000000000000000
R10: fffffbfff4006135 R11: ffffffffa00309ab R12: 0000000000000000
R13: ffff8881a2e29780 R14: 0000000000000001 R15: ffff8881a2e29fa8
 rcu_lock_release include/linux/rcupdate.h:247 [inline]
 rcu_read_unlock include/linux/rcupdate.h:685 [inline]
 __is_insn_slot_addr+0x130/0x1e0 kernel/kprobes.c:301
 is_kprobe_insn_slot include/linux/kprobes.h:318 [inline]
 kernel_text_address+0xfe/0x120 kernel/extable.c:148
 __kernel_text_address+0x9/0x30 kernel/extable.c:105
 unwind_get_return_address arch/x86/kernel/unwind_orc.c:255 [inline]
 unwind_get_return_address+0x51/0x90 arch/x86/kernel/unwind_orc.c:250
 __save_stack_trace+0x8a/0xf0 arch/x86/kernel/stacktrace.c:45
 save_stack mm/kasan/common.c:76 [inline]
 set_track mm/kasan/common.c:85 [inline]
 __kasan_kmalloc.part.0+0x53/0xc0 mm/kasan/common.c:501
 slab_post_alloc_hook mm/slab.h:439 [inline]
 slab_alloc_node mm/slub.c:2792 [inline]
 slab_alloc mm/slub.c:2800 [inline]
 kmem_cache_alloc+0xee/0x360 mm/slub.c:2805
 kmem_cache_zalloc include/linux/slab.h:651 [inline]
 get_empty_filp+0x86/0x3d0 fs/file_table.c:123
 path_openat+0x94/0x2be0 fs/namei.c:3657
 do_filp_open+0x1a1/0x280 fs/namei.c:3715
 do_sys_open+0x2ca/0x590 fs/open.c:1096
 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4143d1
RSP: 002b:00007f6a1ef04bb0 EFLAGS: 00000293 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00000000004143d1
RDX: 00007f6a1ef04be1 RSI: 0000000000000002 RDI: 00007f6a1ef04bd0
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000011
R10: 0000000000000006 R11: 0000000000000293 R12: 00007f6a1ef056d4
R13: 00000000004ca597 R14: 00000000004e2628 R15: 00000000ffffffff
Code: 20 ff 4c 8b 4c 24 10 8b 4b 78 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 00 9a 88 9f ff 74 24 10 ff 74 24 20 e8 e9 a3 ee fe <0f> 0b e8 87 7e fd fe 4c 8b 64 24 18 e8 5d 44 20 ff 48 c7 c1 a0 
RIP: skb_panic+0x16c/0x16e net/core/skbuff.c:104 RSP: ffff8881dba079d8
---[ end trace d04d9d6440ec3da3 ]---