netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'.
skbuff: skb_over_panic: text:ffffffff827235b8 len:56 put:8 head:ffff8801d70f8a00 data:ffff8801d70f8a90 tail:0xc8 end:0xc0 dev:ip6tnl1
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:105!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 16554 Comm: syz-executor.3 Not tainted 4.9.141+ #1
task: ffff8801ce0697c0 task.stack: ffff8801c5f30000
RIP: 0010:[<ffffffff827f8512>]  [<ffffffff827f8512>] skb_panic+0x166/0x168 net/core/skbuff.c:105
RSP: 0018:ffff8801db607968  EFLAGS: 00010286
RAX: 0000000000000085 RBX: ffff8801c491fdc0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81226ef2 RDI: ffff8801ce06a06c
RBP: ffff8801db6079d0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8801a1a9b300
R13: ffff8801d70f8a90 R14: 00000000000000c8 R15: 00000000000000c0
FS:  00007f88c8a1c700(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020e50000 CR3: 00000001c6da0000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Stack:
 ffff8801d70f8a90 00000000000000c8 00000000000000c0 ffff8801a1a9b300
 ffffffff822c8b4b ffffffff82c6fe40 ffffffff827235b8 00000008db607aa0
 ffff8801c491fdc0 ffffffff827235b8 0000000000000008 00000000000000c8
Call Trace:
 [<ffffffff827f855a>] skb_over_panic net/core/skbuff.c:110 [inline]
 [<ffffffff827f855a>] skb_put.cold.21+0x23/0x23 net/core/skbuff.c:1439
 [<ffffffff827235b8>] mld_newpack+0x4d8/0x7b0 net/ipv6/mcast.c:1607
binder: 16575 BINDER_GET_NODE_INFO_FOR_REF: only handle may be non-zero.
binder: 16575:16576 ioctl c018620c 20000600 returned -22
binder: 16575 BINDER_GET_NODE_INFO_FOR_REF: only handle may be non-zero.
binder: 16575:16576 ioctl c018620c 20000600 returned -22
 [<ffffffff82723b2c>] add_grhead.isra.14+0x29c/0x370 net/ipv6/mcast.c:1690
 [<ffffffff827242ab>] add_grec+0x6ab/0xf20 net/ipv6/mcast.c:1821
 [<ffffffff82725240>] mld_send_cr net/ipv6/mcast.c:1947 [inline]
 [<ffffffff82725240>] mld_ifc_timer_expire+0x340/0x7b0 net/ipv6/mcast.c:2455
 [<ffffffff81262a43>] call_timer_fn+0x163/0x6e0 kernel/time/timer.c:1319
 [<ffffffff812631f4>] expire_timers+0x234/0x580 kernel/time/timer.c:1359
 [<ffffffff81263748>] __run_timers kernel/time/timer.c:1674 [inline]
 [<ffffffff81263748>] run_timer_softirq+0x208/0x5e0 kernel/time/timer.c:1687
 [<ffffffff8281cb9e>] __do_softirq+0x20e/0x964 kernel/softirq.c:288
 [<ffffffff810efdbc>] invoke_softirq kernel/softirq.c:368 [inline]
 [<ffffffff810efdbc>] irq_exit+0x11c/0x150 kernel/softirq.c:409
 [<ffffffff8281b771>] exiting_irq arch/x86/include/asm/apic.h:669 [inline]
 [<ffffffff8281b771>] smp_apic_timer_interrupt+0x81/0xb0 arch/x86/kernel/apic/apic.c:962
 [<ffffffff8281902d>] apic_timer_interrupt+0x9d/0xb0 arch/x86/entry/entry_64.S:648
 <EOI> [  533.379992]  [<ffffffff82816fbf>] ? arch_local_irq_restore arch/x86/include/asm/paravirt.h:768 [inline]
 <EOI> [  533.379992]  [<ffffffff82816fbf>] ? __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:162 [inline]
 <EOI> [  533.379992]  [<ffffffff82816fbf>] ? _raw_spin_unlock_irqrestore+0x5f/0x70 kernel/locking/spinlock.c:191
 [<ffffffff819eac8c>] spin_unlock_irqrestore include/linux/spinlock.h:362 [inline]
 [<ffffffff819eac8c>] avc_reclaim_node security/selinux/avc.c:541 [inline]
 [<ffffffff819eac8c>] avc_alloc_node+0x31c/0x3c0 security/selinux/avc.c:559
 [<ffffffff819ebf18>] avc_insert security/selinux/avc.c:670 [inline]
 [<ffffffff819ebf18>] avc_compute_av+0x178/0x610 security/selinux/avc.c:976
 [<ffffffff819edd12>] avc_has_perm_noaudit security/selinux/avc.c:1112 [inline]
 [<ffffffff819edd12>] avc_has_perm+0x352/0x3a0 security/selinux/avc.c:1146
IPv6: sit4: Disabled Multicast RS
 [<ffffffff81a0d7fc>] selinux_socket_create+0x1ac/0x410 security/selinux/hooks.c:4274
 [<ffffffff819e80a9>] security_socket_create+0x89/0xc0 security/security.c:1251
 [<ffffffff8229f065>] __sock_create+0x65/0x5f0 net/socket.c:1150
 [<ffffffff822a2cc3>] sock_create net/socket.c:1235 [inline]
 [<ffffffff822a2cc3>] SYSC_socketpair net/socket.c:1307 [inline]
 [<ffffffff822a2cc3>] SyS_socketpair+0x113/0x520 net/socket.c:1286
 [<ffffffff810056ef>] do_syscall_64+0x19f/0x550 arch/x86/entry/common.c:285
 [<ffffffff82817893>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 55 ab cf fe 4c 8b 4d b8 8b 4b 78 41 54 48 c7 c7 60 fa c6 82 44 8b 45 d4 41 57 48 8b 55 c8 41 56 48 8b 75 c0 41 55 e8 de a9 c0 fe <0f> 0b e8 47 35 b2 fe 4c 8b 65 08 e8 4e 92 cf fe 48 c7 c1 00 fe 
RIP  [<ffffffff827f8512>] skb_panic+0x166/0x168 net/core/skbuff.c:101
 RSP <ffff8801db607968>
---[ end trace 4cf52428431ef5d3 ]---