------------[ cut here ]------------ kernel BUG at include/linux/skbuff.h:2150! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 11520 Comm: syz-executor.2 Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 task: ffff888046654380 task.stack: ffff888046658000 RIP: 0010:__skb_pull include/linux/skbuff.h:2150 [inline] RIP: 0010:skb_pull_inline include/linux/skbuff.h:2156 [inline] RIP: 0010:skb_pull net/core/skbuff.c:1745 [inline] RIP: 0010:skb_pull+0xe1/0x100 net/core/skbuff.c:1743 RSP: 0018:ffff88804665f5d8 EFLAGS: 00010212 RAX: 0000000000040000 RBX: ffff8880b4d00640 RCX: ffffc900082a5000 RDX: 0000000000000484 RSI: ffffffff85bf59b1 RDI: ffff8880b4d006c4 RBP: 0000000000000018 R08: 00000000000000c0 R09: ffffed101314fe87 R10: ffff888098a7f43f R11: 0000000000000000 R12: 0000000000000fca R13: ffff8880b4d00718 R14: ffff8880b4d00710 R15: ffff888098a7f3e0 FS: 00007f1713744700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000240 CR3: 00000000b5067000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ipgre_xmit+0x26f/0x780 net/ipv4/ip_gre.c:658 __netdev_start_xmit include/linux/netdevice.h:4054 [inline] netdev_start_xmit include/linux/netdevice.h:4063 [inline] xmit_one net/core/dev.c:3005 [inline] dev_hard_start_xmit+0x188/0x890 net/core/dev.c:3021 __dev_queue_xmit+0x1d7f/0x2480 net/core/dev.c:3521 packet_snd+0x13aa/0x26f0 net/packet/af_packet.c:3031 packet_sendmsg+0x12ed/0x33a0 net/packet/af_packet.c:3060 audit: type=1800 audit(1671340407.023:28): pid=11548 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name="file2" dev="sda1" ino=14075 res=0 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f17151d20d9 RSP: 002b:00007f1713744168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f17152f1f80 RCX: 00007f17151d20d9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 00007f171522dae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffbeff3d6f R14: 00007f1713744300 R15: 0000000000022000 Code: 00 00 4c 89 a3 d8 00 00 00 e8 ac 00 96 fb 4c 89 e0 5b 5d 41 5c c3 e8 9f 00 96 fb 45 31 e4 5b 4c 89 e0 5d 41 5c c3 e8 8f 00 96 fb <0f> 0b e8 18 c1 bf fb e9 49 ff ff ff e8 0e c1 bf fb eb 8e e8 77 RIP: __skb_pull include/linux/skbuff.h:2150 [inline] RSP: ffff88804665f5d8 RIP: skb_pull_inline include/linux/skbuff.h:2156 [inline] RSP: ffff88804665f5d8 RIP: skb_pull net/core/skbuff.c:1745 [inline] RSP: ffff88804665f5d8 RIP: skb_pull+0xe1/0x100 net/core/skbuff.c:1743 RSP: ffff88804665f5d8 ---[ end trace aa96f0aec0c49ca6 ]---