skbuff: skb_over_panic: text:ffffffff87e8835b len:5578 put:5578 head:ffff88804b104000 data:ffff88804b1040a8 tail:0x1672 end:0x6c0 dev: ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:113! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 17853 Comm: syz-executor.5 Not tainted 5.17.0-rc7-syzkaller-00235-gaad611a868d1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:113 Code: f8 4c 8b 4c 24 10 8b 4b 70 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 40 b6 ae 8a ff 74 24 10 ff 74 24 20 e8 04 c9 c1 ff <0f> 0b e8 30 b3 31 f8 4c 8b 64 24 18 e8 66 23 79 f8 48 c7 c1 e0 c2 RSP: 0018:ffffc90003d37430 EFLAGS: 00010282 RAX: 000000000000008c RBX: ffff8880752fc500 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815ff5a8 RDI: fffff520007a6e78 RBP: ffffffff8aaec320 R08: 000000000000008c R09: 0000000000000000 R10: ffffffff815f9c3e R11: 0000000000000000 R12: ffffffff87e8835b R13: 00000000000015ca R14: ffffffff8aaeb600 R15: 00000000000006c0 FS: 00007f902ac08700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e226000 CR3: 000000001dd7b000 CR4: 00000000003526e0 DR0: 0000000000000071 DR1: 0000000000005af7 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: skb_over_panic net/core/skbuff.c:118 [inline] skb_put.cold+0x24/0x24 net/core/skbuff.c:1988 __ip6_append_data.isra.0+0x1e2b/0x3bc0 net/ipv6/ip6_output.c:1659 ip6_append_data+0x207/0x350 net/ipv6/ip6_output.c:1807 rawv6_sendmsg+0x14df/0x3b30 net/ipv6/raw.c:949 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:819 sock_sendmsg_nosec net/socket.c:705 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:725 ____sys_sendmsg+0x331/0x810 net/socket.c:2413 ___sys_sendmsg+0xf3/0x170 net/socket.c:2467 __sys_sendmmsg+0x195/0x470 net/socket.c:2553 __do_sys_sendmmsg net/socket.c:2582 [inline] __se_sys_sendmmsg net/socket.c:2579 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2579 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f902c293049 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f902ac08168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f902c3a5f60 RCX: 00007f902c293049 RDX: 0000000000000001 RSI: 00000000200002c0 RDI: 0000000000000003 RBP: 00007f902c2ed08d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000008000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f902c8d9b1f R14: 00007f902ac08300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:skb_panic+0x16c/0x16e net/core/skbuff.c:113 Code: f8 4c 8b 4c 24 10 8b 4b 70 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 40 b6 ae 8a ff 74 24 10 ff 74 24 20 e8 04 c9 c1 ff <0f> 0b e8 30 b3 31 f8 4c 8b 64 24 18 e8 66 23 79 f8 48 c7 c1 e0 c2 RSP: 0018:ffffc90003d37430 EFLAGS: 00010282 RAX: 000000000000008c RBX: ffff8880752fc500 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815ff5a8 RDI: fffff520007a6e78 RBP: ffffffff8aaec320 R08: 000000000000008c R09: 0000000000000000 R10: ffffffff815f9c3e R11: 0000000000000000 R12: ffffffff87e8835b R13: 00000000000015ca R14: ffffffff8aaeb600 R15: 00000000000006c0 FS: 00007f902ac08700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f38657dc000 CR3: 000000001dd7b000 CR4: 00000000003526e0 DR0: 0000000000000071 DR1: 0000000000005af7 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400