hrtimer: interrupt took 33562 ns 8021q: adding VLAN 0 to HW filter on device batadv0 8021q: adding VLAN 0 to HW filter on device batadv0 skbuff: skb_over_panic: text:0000000050eaf43a len:232 put:72 head:00000000b32b973c data:00000000b32b973c tail:0xe8 end:0xc0 dev: ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:107! invalid opcode: 0000 [#1] PREEMPT SMP KASAN ------------[ cut here ]------------ CPU: 0 PID: 10542 Comm: syz-executor0 Not tainted 4.20.0-rc7-next-20181224 #189 downgrading a read lock WARNING: CPU: 1 PID: 10632 at kernel/locking/lockdep.c:3553 __lock_downgrade kernel/locking/lockdep.c:3553 [inline] WARNING: CPU: 1 PID: 10632 at kernel/locking/lockdep.c:3553 lock_downgrade+0x4d7/0x900 kernel/locking/lockdep.c:3816 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Kernel panic - not syncing: panic_on_warn set ... RIP: 0010:skb_panic+0x166/0x168 net/core/skbuff.c:107 Code: f7 a9 fb 4c 8b 4d b8 8b 4b 70 41 54 48 c7 c7 a0 cb db 88 44 8b 45 d4 41 57 48 8b 55 c8 41 56 48 8b 75 c0 41 55 e8 8e f4 4b fb <0f> 0b e8 83 bb 65 fb 4c 8b 65 08 e8 da ed a9 fb 48 c7 c1 20 d5 db RSP: 0018:ffff88808e976030 EFLAGS: 00010282 RAX: 0000000000000086 RBX: ffff888089ada200 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81683f45 RDI: 0000000000000005 RBP: ffff88808e976098 R08: ffff8880a52b61c0 R09: ffffed1015cc5020 R10: ffffed1015cc5020 R11: ffff8880ae628107 R12: ffffffff88dbcb60 R13: ffff88808b421300 R14: 00000000000000e8 R15: 00000000000000c0 FS: 00007f5dcb776700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd7571df4c CR3: 000000008cd63000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_over_panic net/core/skbuff.c:112 [inline] skb_put.cold.88+0x23/0x23 net/core/skbuff.c:1703 dump_esp_combs net/key/af_key.c:3009 [inline] pfkey_send_acquire+0x1be4/0x2620 net/key/af_key.c:3230 km_query+0x1a0/0x360 net/xfrm/xfrm_state.c:1980 xfrm_state_find+0x2713/0x3eb0 net/xfrm/xfrm_state.c:1030 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:2385 [inline] xfrm_tmpl_resolve+0x3c0/0xe50 net/xfrm/xfrm_policy.c:2430 xfrm_resolve_and_create_bundle+0x184/0x2800 net/xfrm/xfrm_policy.c:2725 xfrm_lookup_with_ifid+0x39e/0x2b80 net/xfrm/xfrm_policy.c:3048 xfrm_lookup net/xfrm/xfrm_policy.c:3172 [inline] xfrm_lookup_route+0x3c/0x1f0 net/xfrm/xfrm_policy.c:3183 ip_route_output_flow+0xb1/0xc0 net/ipv4/route.c:2582 udp_sendmsg+0x22d8/0x3bf0 net/ipv4/udp.c:1144 udpv6_sendmsg+0x182c/0x36a0 net/ipv6/udp.c:1279 inet_sendmsg+0x1a1/0x690 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x51d/0x930 net/socket.c:2116 __sys_sendmmsg+0x246/0x6d0 net/socket.c:2211 __do_sys_sendmmsg net/socket.c:2240 [inline] __se_sys_sendmmsg net/socket.c:2237 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2237 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4579b9 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5dcb775c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000004579b9 RDX: 00000000000005c3 RSI: 0000000020000240 RDI: 0000000000000005 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5dcb7766d4 R13: 00000000004c4727 R14: 00000000004d7d28 R15: 00000000ffffffff Modules linked in: Kernel Offset: disabled Rebooting in 86400 seconds..