skb frag: 00000060: f2 0f 5c 3c 49 04 1c 0f 05 11 ae 1d b3 9a d8 04 skb frag: 00000070: 73 80 cb 3d 3b bf 1a 81 b5 ee f0 2b 17 dd c9 77 skb frag: 00000080: 39 54 5a ae 64 94 ee b8 cd c5 c7 72 0c a5 fa 11 skb frag: 00000090: 6d 85 4c f8 26 41 ab e2 ae 5b 9b 73 60 49 3f a6 skb frag: 000000a0: 4e 10 59 06 b4 0a d7 43 23 db 55 e2 a0 9c 4f 69 skb frag: 000000b0: c0 b0 6a d1 6d ac b2 cb 3a b4 37 fc 7a 15 02 f7 ------------[ cut here ]------------ ip6tnl0: caps=(0x00000006401d7869, 0x00000006401d7869) WARNING: CPU: 0 PID: 22124 at net/core/dev.c:3293 skb_warn_bad_offload+0x166/0x1a0 net/core/dev.c:3291 Modules linked in: CPU: 0 PID: 22124 Comm: syz.3.4813 Not tainted 6.10.0-syzkaller-09703-gd7e78951a8b8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:skb_warn_bad_offload+0x166/0x1a0 net/core/dev.c:3291 Code: e8 9f 67 9d f8 49 8b 04 24 48 8d 88 a0 03 00 00 48 85 c0 48 0f 44 cd 48 c7 c7 80 97 c6 8c 4c 89 f6 48 89 da e8 5b 44 f9 f7 90 <0f> 0b 90 90 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 44 89 f9 RSP: 0018:ffffc90002f3edc8 EFLAGS: 00010246 RAX: f840b70dc0ee4400 RBX: ffff8880652d20b8 RCX: 0000000000040000 RDX: ffffc900110bf000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffffff8cc69740 R08: ffffffff815565a2 R09: fffffbfff1c39f60 R10: dffffc0000000000 R11: fffffbfff1c39f60 R12: ffff88802980f3d8 R13: dffffc0000000000 R14: ffff8880652d2130 R15: ffff8880652d2130 FS: 00007f7ae55a36c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020003000 CR3: 0000000023592000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __skb_gso_segment+0x3be/0x4c0 net/core/gso.c:127 skb_gso_segment include/net/gso.h:83 [inline] validate_xmit_skb+0x585/0x1120 net/core/dev.c:3661 __dev_queue_xmit+0x17a4/0x3e90 net/core/dev.c:4415 neigh_output include/net/neighbour.h:542 [inline] ip6_finish_output2+0xffa/0x1680 net/ipv6/ip6_output.c:137 ip6_finish_output+0x41e/0x810 net/ipv6/ip6_output.c:222 ip6_send_skb+0x112/0x230 net/ipv6/ip6_output.c:1959 udp_v6_send_skb+0xbf5/0x1870 net/ipv6/udp.c:1292 udpv6_sendmsg+0x23b3/0x3270 net/ipv6/udp.c:1588 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xef/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597 ___sys_sendmsg net/socket.c:2651 [inline] __sys_sendmmsg+0x3b2/0x740 net/socket.c:2737 __do_sys_sendmmsg net/socket.c:2766 [inline] __se_sys_sendmmsg net/socket.c:2763 [inline] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2763 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7ae4775f19 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:00007f7ae55a3048 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f7ae4905f60 RCX: 00007f7ae4775f19 RDX: 0000000000000005 RSI: 0000000020002d00 RDI: 0000000000000004 RBP: 00007f7ae47e4e68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f7ae4905f60 R15: 00007ffc4541c4e8