general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077]
CPU: 0 PID: 433 Comm: syz-executor.0 Not tainted 5.15.138-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:skb_segment+0x2f1b/0x45e0 net/core/skbuff.c:4108
Code: 7c 24 40 ff ff 00 00 0f 85 c2 dd ff ff 4d 89 e7 e8 fa 76 ad fd 49 8d 5d 70 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 ff 08 00 00 44 8b 23 4c 8b b4 24 a0 00 00
RSP: 0018:ffffc90000b57060 EFLAGS: 00010202
RAX: 000000000000000e RBX: 0000000000000070 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffff88811caa6a7e RDI: 000000000000ffff
RBP: ffffc90000b572d0 R08: ffffffff83c081b3 R09: ffffffff83c50d8c
R10: 0000000000000002 R11: ffff888106bf3300 R12: 000000000000003e
R13: 0000000000000000 R14: ffff88811caa6a70 R15: 000000000000003e
FS:  00007f0a2cea96c0(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020010000 CR3: 000000011ca29000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udp6_ufo_fragment+0x87a/0xd40 net/ipv6/udp_offload.c:107
 ipv6_gso_segment+0x64a/0x1120 net/ipv6/ip6_offload.c:116
 skb_mac_gso_segment+0x27c/0x490 net/core/dev.c:3363
 __skb_gso_segment+0x32d/0x4c0 net/core/dev.c:3436
 skb_gso_segment include/linux/netdevice.h:4969 [inline]
 validate_xmit_skb+0x324/0xd90 net/core/dev.c:3695
 __dev_queue_xmit+0x13f5/0x2ed0 net/core/dev.c:4236
 dev_queue_xmit+0x17/0x20 net/core/dev.c:4278
 packet_snd net/packet/af_packet.c:3039 [inline]
 packet_sendmsg+0x47af/0x6360 net/packet/af_packet.c:3070
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 __sys_sendto+0x564/0x720 net/socket.c:2056
 __do_sys_sendto net/socket.c:2068 [inline]
 __se_sys_sendto net/socket.c:2064 [inline]
 __x64_sys_sendto+0xe5/0x100 net/socket.c:2064
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f0a2d326ba9
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:00007f0a2cea90c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f0a2d445f80 RCX: 00007f0a2d326ba9
RDX: 0000000000010048 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f0a2d37247a R08: 0000000020000540 R09: 0000000000000014
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f0a2d445f80 R15: 00007fff6efda128
 </TASK>
Modules linked in:
---[ end trace 96c11cf537aeb294 ]---
RIP: 0010:skb_segment+0x2f1b/0x45e0 net/core/skbuff.c:4108
Code: 7c 24 40 ff ff 00 00 0f 85 c2 dd ff ff 4d 89 e7 e8 fa 76 ad fd 49 8d 5d 70 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 ff 08 00 00 44 8b 23 4c 8b b4 24 a0 00 00
RSP: 0018:ffffc90000b57060 EFLAGS: 00010202
RAX: 000000000000000e RBX: 0000000000000070 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffff88811caa6a7e RDI: 000000000000ffff
RBP: ffffc90000b572d0 R08: ffffffff83c081b3 R09: ffffffff83c50d8c
R10: 0000000000000002 R11: ffff888106bf3300 R12: 000000000000003e
R13: 0000000000000000 R14: ffff88811caa6a70 R15: 000000000000003e
FS:  00007f0a2cea96c0(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020010000 CR3: 000000011ca29000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 5 bytes skipped:
   0:	00 00                	add    %al,(%rax)
   2:	0f 85 c2 dd ff ff    	jne    0xffffddca
   8:	4d 89 e7             	mov    %r12,%r15
   b:	e8 fa 76 ad fd       	call   0xfdad770a
  10:	49 8d 5d 70          	lea    0x70(%r13),%rbx
  14:	48 89 d8             	mov    %rbx,%rax
  17:	48 c1 e8 03          	shr    $0x3,%rax
  1b:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  22:	fc ff df
* 25:	0f b6 04 08          	movzbl (%rax,%rcx,1),%eax <-- trapping instruction
  29:	84 c0                	test   %al,%al
  2b:	0f 85 ff 08 00 00    	jne    0x930
  31:	44 8b 23             	mov    (%rbx),%r12d
  34:	4c                   	rex.WR
  35:	8b                   	.byte 0x8b
  36:	b4 24                	mov    $0x24,%ah
  38:	a0                   	.byte 0xa0