__nla_validate_parse: 7 callbacks suppressed netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. ------------[ cut here ]------------ kernel BUG at net/core/dev.c:3228! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 11026 Comm: syz-executor.4 Not tainted 5.10.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:skb_checksum_help+0x4c1/0x5b0 net/core/dev.c:3228 Code: fa 45 89 ec e9 59 ff ff ff e8 9b 39 7d fa 48 89 ef 41 bc ea ff ff ff e8 1d f9 ff ff eb c7 e8 86 39 7d fa 0f 0b e8 7f 39 7d fa <0f> 0b 4c 89 f7 e8 a5 41 bf fa e9 6c fb ff ff e8 ab 41 bf fa e9 1b RSP: 0018:ffffc900022bf0b8 EFLAGS: 00010216 RAX: 000000000000d61e RBX: 00000000000003d2 RCX: ffffc90011bab000 RDX: 0000000000040000 RSI: ffffffff86f2f671 RDI: 0000000000000006 RBP: ffff8880231d7b40 R08: ffffc900022bf048 R09: ffffffff8cecc44f R10: 00000000000003d4 R11: 0000000000000000 R12: 00000000000000e0 R13: 00000000000003d4 R14: ffff8880231d7bc0 R15: 00000000000003d2 FS: 00007f7f2e1d9700(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000016a9e60 CR3: 0000000014c5c000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_csum_hwoffload_help+0x8b/0x130 net/core/dev.c:3614 validate_xmit_skb+0xbb5/0xec0 net/core/dev.c:3657 __dev_queue_xmit+0x987/0x2da0 net/core/dev.c:4131 neigh_hh_output include/net/neighbour.h:499 [inline] neigh_output include/net/neighbour.h:508 [inline] ip_finish_output2+0xe95/0x2120 net/ipv4/ip_output.c:230 __ip_finish_output net/ipv4/ip_output.c:308 [inline] __ip_finish_output+0x7cf/0xd10 net/ipv4/ip_output.c:290 ip_finish_output+0x34/0x1f0 net/ipv4/ip_output.c:318 NF_HOOK_COND include/linux/netfilter.h:290 [inline] ip_output+0x196/0x310 net/ipv4/ip_output.c:432 dst_output include/net/dst.h:441 [inline] ip_local_out+0xaf/0x1a0 net/ipv4/ip_output.c:126 iptunnel_xmit+0x5a3/0x9c0 net/ipv4/ip_tunnel_core.c:82 geneve_xmit_skb drivers/net/geneve.c:958 [inline] geneve_xmit+0xde1/0x2f60 drivers/net/geneve.c:1058 __netdev_start_xmit include/linux/netdevice.h:4752 [inline] netdev_start_xmit include/linux/netdevice.h:4766 [inline] xmit_one net/core/dev.c:3564 [inline] dev_hard_start_xmit+0x1eb/0x920 net/core/dev.c:3580 sch_direct_xmit+0x2e1/0xbd0 net/sched/sch_generic.c:313 qdisc_restart net/sched/sch_generic.c:376 [inline] __qdisc_run+0x4ba/0x15e0 net/sched/sch_generic.c:384 __dev_xmit_skb net/core/dev.c:3803 [inline] __dev_queue_xmit+0x19fa/0x2da0 net/core/dev.c:4108 packet_snd net/packet/af_packet.c:3005 [inline] packet_sendmsg+0x2413/0x52b0 net/packet/af_packet.c:3030 sock_sendmsg_nosec net/socket.c:650 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:670 __sys_sendto+0x21c/0x320 net/socket.c:1969 __do_sys_sendto net/socket.c:1981 [inline] __se_sys_sendto net/socket.c:1977 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1977 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45deb9 Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f7f2e1d8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 000000000002e940 RCX: 000000000045deb9 RDX: 0000000000003287 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000118bf78 R08: 0000000000000000 R09: 00000000000002ff R10: 0000000004000002 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffe433b925f R14: 00007f7f2e1d99c0 R15: 000000000118bf2c Modules linked in: ---[ end trace 404974876fa881f4 ]--- RIP: 0010:skb_checksum_help+0x4c1/0x5b0 net/core/dev.c:3228 Code: fa 45 89 ec e9 59 ff ff ff e8 9b 39 7d fa 48 89 ef 41 bc ea ff ff ff e8 1d f9 ff ff eb c7 e8 86 39 7d fa 0f 0b e8 7f 39 7d fa <0f> 0b 4c 89 f7 e8 a5 41 bf fa e9 6c fb ff ff e8 ab 41 bf fa e9 1b RSP: 0018:ffffc900022bf0b8 EFLAGS: 00010216 RAX: 000000000000d61e RBX: 00000000000003d2 RCX: ffffc90011bab000 RDX: 0000000000040000 RSI: ffffffff86f2f671 RDI: 0000000000000006 RBP: ffff8880231d7b40 R08: ffffc900022bf048 R09: ffffffff8cecc44f R10: 00000000000003d4 R11: 0000000000000000 R12: 00000000000000e0 R13: 00000000000003d4 R14: ffff8880231d7bc0 R15: 00000000000003d2 FS: 00007f7f2e1d9700(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000016a9e60 CR3: 0000000014c5c000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400