EXT4-fs warning (device sda1): ext4_group_add:1615: No reserved GDT blocks, can't resize
ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
skbuff: skb_over_panic: text:0000000018f4ba6f len:56 put:8 head:00000000773b4351 data:00000000e976b6fd 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: 32438 Comm: syz-executor.3 Not tainted 4.14.157-syzkaller #0
task: 000000005796d7f8 task.stack: 000000003e95d6dc
RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:104
RSP: 0018:ffff8881dba079d8 EFLAGS: 00010286
RAX: 0000000000000085 RBX: ffff888156d5a280 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8881c8d74f28 RDI: ffffed103b740f2d
RBP: ffffffffa1c8a0a0 R08: 0000000000000085 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffa138664e
R13: 0000000000000008 R14: ffff8881a3936600 R15: 00000000000000c0
FS:  0000000001982940(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc028cbf2c CR3: 00000001967c0005 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:wait_consider_task+0xb9/0x3150 kernel/exit.c:1355
RSP: 0018:ffff888197e67ad0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000007 RBX: 0000000000000000 RCX: ffff8881a1b63384
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888197e67cd8
RBP: 0000000000000000 R08: 00000000000043a2 R09: fffffbfff4401219
R10: fffffbfff4401218 R11: ffffffffa20090c3 R12: ffff888197e67cd8
R13: ffff8881a1b62f00 R14: ffff888197e67cd8 R15: ffff8881a1b62f00
 do_wait_thread kernel/exit.c:1461 [inline]
 do_wait+0x43a/0x950 kernel/exit.c:1532
 kernel_wait4+0x116/0x210 kernel/exit.c:1675
 SYSC_wait4 kernel/exit.c:1687 [inline]
 SyS_wait4+0x130/0x140 kernel/exit.c:1683
 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4144ba
RSP: 002b:00007ffd4bdc3b38 EFLAGS: 00000246 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 000000000034c3ec RCX: 00000000004144ba
RDX: 0000000040000001 RSI: 00007ffd4bdc3b70 RDI: ffffffffffffffff
RBP: 00000000000020ca R08: 0000000000000001 R09: 0000000001982940
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000018
R13: 00007ffd4bdc3b70 R14: 000000000034c36a R15: 00007ffd4bdc3b80
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 c0 9a c8 a1 ff 74 24 10 ff 74 24 20 e8 e9 9d ee fe <0f> 0b e8 67 78 fd fe 4c 8b 64 24 18 e8 fd 3e 20 ff 48 c7 c1 60 
RIP: skb_panic+0x16c/0x16e net/core/skbuff.c:104 RSP: ffff8881dba079d8
---[ end trace efbf5456d79510c1 ]---