loop2: p1 start 1 is beyond EOD, truncated
skbuff: skb_over_panic: text:000000001560ea72 len:56 put:8 head:00000000cae103b4 data:00000000a20bdb7d tail:0xc8 end:0xc0 dev:ip6tnl1
loop2: p2 size 1073741824 extends beyond EOD, 
------------[ cut here ]------------
truncated
kernel BUG at net/core/skbuff.c:104!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
Modules linked in:
CPU: 0 PID: 11343 Comm: blkid Not tainted 4.14.155-syzkaller #0
task: 000000003ea865b1 task.stack: 0000000036327036
RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:104
loop2: p3 size 1912633224 extends beyond EOD, 
RSP: 0018:ffff8881dba079d8 EFLAGS: 00010286
RAX: 0000000000000085 RBX: ffff88819cd7a280 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffffb746a380 RDI: ffffed103b740f2d
RBP: ffffffffb7689fe0 R08: 0000000000000085 R09: ffffed103b744ce9
R10: ffffed103b744ce8 R11: ffff8881dba26747 R12: ffffffffb6d85d2e
R13: 0000000000000008 R14: ffff88819cf93300 R15: 00000000000000c0
FS:  00007f108fd6d740(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f108f94ba20 CR3: 00000001a1a9c002 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
truncated
 <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
loop2: p4 size 32768 extends beyond EOD, 
 add_grhead.isra.0+0x29c/0x370 net/ipv6/mcast.c:1691
 add_grec+0x6a3/0xf10 net/ipv6/mcast.c:1822
truncated
 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:cpu_relax arch/x86/include/asm/processor.h:661 [inline]
RIP: 0010:mutex_spin_on_owner+0x1fc/0x2d0 kernel/locking/mutex.c:453
RSP: 0018:ffff8881a52ff670 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000000 RBX: ffff8881d4740000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000001
RBP: ffff8881d9ab9cd8 R08: 0000000000000000 R09: ffffed103b35739c
R10: ffffed103b35739b R11: ffff8881d9ab9cdf R12: 0000000000000000
R13: ffffed103a8e8bc0 R14: dffffc0000000000 R15: ffff8881d4745e00
 mutex_optimistic_spin kernel/locking/mutex.c:547 [inline]
 __mutex_lock_common kernel/locking/mutex.c:759 [inline]
 __mutex_lock+0x9e8/0x13e0 kernel/locking/mutex.c:893
 __blkdev_get+0xf3/0xf90 fs/block_dev.c:1457
 blkdev_get+0x97/0x8b0 fs/block_dev.c:1612
 blkdev_open+0x1cc/0x250 fs/block_dev.c:1770
 do_dentry_open+0x44e/0xe20 fs/open.c:789
 vfs_open+0x105/0x230 fs/open.c:903
 do_last fs/namei.c:3539 [inline]
 path_openat+0xb6c/0x2be0 fs/namei.c:3681
 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: 0033:0x7f108f675120
RSP: 002b:00007ffc02b7fea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f108f675120
RDX: 00007ffc02b80f3f RSI: 0000000000000000 RDI: 00007ffc02b80f3f
RBP: 0000000000000000 R08: 0000000000000078 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001f5f030
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000005
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 68 b7 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 006161ada9d6207c ]---