------------[ cut here ]------------ skb_assert_len WARNING: CPU: 0 PID: 8003 at include/linux/skbuff.h:2679 skb_assert_len include/linux/skbuff.h:2679 [inline] WARNING: CPU: 0 PID: 8003 at include/linux/skbuff.h:2679 __dev_queue_xmit+0x22cf/0x4350 net/core/dev.c:4349 Modules linked in: CPU: 0 UID: 0 PID: 8003 Comm: syz.4.389 Not tainted 6.12.0-rc7-syzkaller-00042-gf1b785f4c787 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:skb_assert_len include/linux/skbuff.h:2679 [inline] RIP: 0010:__dev_queue_xmit+0x22cf/0x4350 net/core/dev.c:4349 Code: e7 3e 9b f8 40 84 ed 75 25 e8 fd 3c 9b f8 c6 05 f5 41 14 07 01 90 48 c7 c6 c0 ec 7a 8c 48 c7 c7 60 bb 7a 8c e8 22 bc 5c f8 90 <0f> 0b 90 90 e8 d8 3c 9b f8 0f b6 2d cf 41 14 07 31 ff 89 ee e8 a8 RSP: 0018:ffffc9000473f188 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff888028091640 RCX: ffffc9000b873000 RDX: 0000000000040000 RSI: ffffffff814e3566 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888028091650 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888033bb6000 FS: 00007f1d109906c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c30380d CR3: 000000003437c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dev_queue_xmit include/linux/netdevice.h:3094 [inline] __netlink_deliver_tap_skb net/netlink/af_netlink.c:307 [inline] __netlink_deliver_tap net/netlink/af_netlink.c:325 [inline] netlink_deliver_tap+0xa8a/0xcf0 net/netlink/af_netlink.c:338 __netlink_sendskb net/netlink/af_netlink.c:1275 [inline] netlink_sendskb net/netlink/af_netlink.c:1284 [inline] netlink_unicast+0x6b4/0x7f0 net/netlink/af_netlink.c:1372 nlmsg_unicast include/net/netlink.h:1158 [inline] genlmsg_unicast include/net/genetlink.h:549 [inline] genlmsg_reply include/net/genetlink.h:559 [inline] netdev_nl_queue_get_doit+0x37f/0x6a0 net/core/netdev-genl.c:405 genl_family_rcv_msg_doit+0x202/0x2f0 net/netlink/genetlink.c:1115 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x165/0x410 net/netlink/af_netlink.c:2551 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:729 [inline] __sock_sendmsg net/socket.c:744 [inline] ____sys_sendmsg+0x9ae/0xb40 net/socket.c:2607 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2661 __sys_sendmsg+0x117/0x1f0 net/socket.c:2690 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1d0fb7e719 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1d10990038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f1d0fd35f80 RCX: 00007f1d0fb7e719 RDX: 0000000022048814 RSI: 0000000020001640 RDI: 0000000000000006 RBP: 00007f1d0fbf175e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f1d0fd35f80 R15: 00007fff88f62e58