netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 9036 at net/core/dev.c:3265 skb_checksum_help+0x4a2/0x600 net/core/dev.c:3265 Modules linked in: CPU: 0 PID: 9036 Comm: syz-executor.2 Not tainted 6.2.0-rc4-syzkaller-00839-gc554520f2cbe #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:skb_checksum_help+0x4a2/0x600 net/core/dev.c:3265 Code: e0 48 83 c4 28 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 03 1f b9 f9 48 89 ef 41 bc ea ff ff ff e8 35 f9 ff ff eb d4 e8 ee 1e b9 f9 <0f> 0b 0f b6 1d c2 c1 95 06 31 ff 89 de e8 4c 1b b9 f9 84 db 0f 84 RSP: 0018:ffffc9000338efb0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 000000000000048a RCX: 0000000000000000 RDX: ffff88806b0ad7c0 RSI: ffffffff87c843b2 RDI: 0000000000000004 RBP: ffff888020e89c80 R08: 0000000000000004 R09: 0000000000000074 R10: 000000000000047a R11: ffff888076ff3600 R12: ffff888020e89cf4 R13: 0000000000001e61 R14: ffff888020e89d00 R15: 000000000000047a FS: 00007f6864ad7700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020005000 CR3: 000000004ae86000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_csum_hwoffload_help+0x12a/0x1e0 net/core/dev.c:3644 validate_xmit_skb+0xb87/0xea0 net/core/dev.c:3687 __dev_queue_xmit+0x9d4/0x3ba0 net/core/dev.c:4241 dev_queue_xmit include/linux/netdevice.h:3035 [inline] neigh_hh_output include/net/neighbour.h:530 [inline] neigh_output include/net/neighbour.h:544 [inline] ip_finish_output2+0x14e3/0x2180 net/ipv4/ip_output.c:228 __ip_finish_output net/ipv4/ip_output.c:306 [inline] __ip_finish_output+0x396/0x650 net/ipv4/ip_output.c:288 ip_finish_output+0x31/0x280 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:291 [inline] ip_output+0x1a3/0x320 net/ipv4/ip_output.c:430 dst_output include/net/dst.h:444 [inline] ip_local_out+0xb3/0x1a0 net/ipv4/ip_output.c:126 iptunnel_xmit+0x67e/0x9f0 net/ipv4/ip_tunnel_core.c:82 geneve_xmit_skb drivers/net/geneve.c:996 [inline] geneve_xmit+0x1318/0x4910 drivers/net/geneve.c:1108 __netdev_start_xmit include/linux/netdevice.h:4865 [inline] netdev_start_xmit include/linux/netdevice.h:4879 [inline] xmit_one net/core/dev.c:3583 [inline] dev_hard_start_xmit+0x1c2/0x990 net/core/dev.c:3599 sch_direct_xmit+0x1a3/0xbe0 net/sched/sch_generic.c:342 qdisc_restart net/sched/sch_generic.c:407 [inline] __qdisc_run+0x4da/0x1750 net/sched/sch_generic.c:415 __dev_xmit_skb net/core/dev.c:3873 [inline] __dev_queue_xmit+0x230b/0x3ba0 net/core/dev.c:4215 packet_snd net/packet/af_packet.c:3073 [inline] packet_sendmsg+0x334c/0x5500 net/packet/af_packet.c:3104 sock_sendmsg_nosec net/socket.c:722 [inline] sock_sendmsg+0xde/0x190 net/socket.c:745 __sys_sendto+0x23a/0x340 net/socket.c:2142 __do_sys_sendto net/socket.c:2154 [inline] __se_sys_sendto net/socket.c:2150 [inline] __x64_sys_sendto+0xe1/0x1b0 net/socket.c:2150 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f6863c8c0c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6864ad7168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f6863dabf80 RCX: 00007f6863c8c0c9 RDX: 0000000000005c13 RSI: 0000000020000280 RDI: 0000000000000003 RBP: 00007f6863ce7ae9 R08: 0000000000000000 R09: 000000000000002f R10: 0000000000000800 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcd9c3468f R14: 00007f6864ad7300 R15: 0000000000022000