------------[ cut here ]------------ WARNING: CPU: 1 PID: 6561 at include/linux/skbuff.h:2740 pskb_may_pull_reason include/linux/skbuff.h:2740 [inline] WARNING: CPU: 1 PID: 6561 at include/linux/skbuff.h:2740 pskb_may_pull include/linux/skbuff.h:2756 [inline] WARNING: CPU: 1 PID: 6561 at include/linux/skbuff.h:2740 pskb_network_may_pull include/linux/skbuff.h:3077 [inline] WARNING: CPU: 1 PID: 6561 at include/linux/skbuff.h:2740 pskb_inet_may_pull include/net/ip_tunnels.h:361 [inline] WARNING: CPU: 1 PID: 6561 at include/linux/skbuff.h:2740 gre_tap_xmit+0x4ff/0x6e0 net/ipv4/ip_gre.c:734 Modules linked in: CPU: 1 PID: 6561 Comm: syz-executor.3 Not tainted 6.8.0-syzkaller-05236-g443574b03387 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:pskb_may_pull_reason include/linux/skbuff.h:2740 [inline] RIP: 0010:pskb_may_pull include/linux/skbuff.h:2756 [inline] RIP: 0010:pskb_network_may_pull include/linux/skbuff.h:3077 [inline] RIP: 0010:pskb_inet_may_pull include/net/ip_tunnels.h:361 [inline] RIP: 0010:gre_tap_xmit+0x4ff/0x6e0 net/ipv4/ip_gre.c:734 Code: 00 4c 89 ef 48 89 ee 48 89 da e8 7c 8f fb ff 31 c0 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 62 55 9d f7 90 <0f> 0b 90 e9 09 fc ff ff 44 89 e7 89 ee e8 0f 57 9d f7 41 39 ec 0f RSP: 0018:ffffc90013866e00 EFLAGS: 00010287 RAX: ffffffff89f79b0e RBX: ffff88802201b998 RCX: 0000000000040000 RDX: ffffc9000b3f1000 RSI: 00000000000130dd RDI: 00000000000130de RBP: 00000000ffffffb6 R08: ffffffff89f79712 R09: 1ffffffff1f0d5cd R10: dffffc0000000000 R11: ffffffff89f79610 R12: 0000000000000000 R13: ffff88802201b8c0 R14: ffff888023462000 R15: dffffc0000000000 FS: 00007fa8177bb6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020010000 CR3: 000000007b396000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __netdev_start_xmit include/linux/netdevice.h:4903 [inline] netdev_start_xmit include/linux/netdevice.h:4917 [inline] xmit_one net/core/dev.c:3531 [inline] dev_hard_start_xmit+0x26a/0x790 net/core/dev.c:3547 sch_direct_xmit+0x2b6/0x5f0 net/sched/sch_generic.c:343 __dev_xmit_skb net/core/dev.c:3760 [inline] __dev_queue_xmit+0x1912/0x3b10 net/core/dev.c:4301 bond_start_xmit+0x1389/0x1c40 drivers/net/bonding/bond_main.c:5469 __netdev_start_xmit include/linux/netdevice.h:4903 [inline] netdev_start_xmit include/linux/netdevice.h:4917 [inline] xmit_one net/core/dev.c:3531 [inline] dev_hard_start_xmit+0x26a/0x790 net/core/dev.c:3547 __dev_queue_xmit+0x19f4/0x3b10 net/core/dev.c:4335 packet_snd net/packet/af_packet.c:3083 [inline] packet_sendmsg+0x4932/0x63d0 net/packet/af_packet.c:3115 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7fa816a7dea9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa8177bb0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fa816babf80 RCX: 00007fa816a7dea9 RDX: 00000000200400c4 RSI: 0000000020000180 RDI: 0000000000000004 RBP: 00007fa816aca4a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fa816babf80 R15: 00007ffe57cf7708