skbuff: skb_over_panic: text:0000000090fb6a83 len:66136 put:66124 head:0000000060bf29ee data:00000000f7410394 tail:0x10310 end:0x6c0 dev:<NULL>
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:104!
invalid opcode: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 17085 Comm: syz-executor5 Not tainted 4.15.0-rc9+ #206
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:skb_panic+0x162/0x1f0 net/core/skbuff.c:100
RSP: 0018:ffff8801c54b64e8 EFLAGS: 00010286
RAX: 000000000000008f RBX: ffff8801be007180 RCX: 0000000000000000
RDX: 000000000000008f RSI: ffffc900048cf000 RDI: ffffed0038a96c91
RBP: ffff8801c54b6550 R08: 1ffff10038a96c1f R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000000 R12: ffffffff861fb260
R13: ffffffff8516c470 R14: 000000000001024c R15: ffffffff861faaa0
FS:  00007ff309da6700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000071c000 CR3: 00000001c902c001 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 skb_over_panic net/core/skbuff.c:109 [inline]
 skb_put+0x18d/0x1d0 net/core/skbuff.c:1695
 skb_put_data include/linux/skbuff.h:2049 [inline]
 sctp_packet_pack net/sctp/output.c:473 [inline]
 sctp_packet_transmit+0x1180/0x3750 net/sctp/output.c:606
 sctp_outq_flush+0x121b/0x4060 net/sctp/outqueue.c:1197
 sctp_outq_uncork+0x5a/0x70 net/sctp/outqueue.c:776
 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1807 [inline]
 sctp_side_effects net/sctp/sm_sideeffect.c:1210 [inline]
 sctp_do_sm+0x4e0/0x6ed0 net/sctp/sm_sideeffect.c:1181
 sctp_primitive_SEND+0xa0/0xd0 net/sctp/primitive.c:178
 sctp_sendmsg+0x1894/0x35e0 net/sctp/socket.c:2066
 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:764
 sock_sendmsg_nosec net/socket.c:630 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:640
 sock_write_iter+0x31a/0x5d0 net/socket.c:909
 call_write_iter include/linux/fs.h:1772 [inline]
 do_iter_readv_writev+0x525/0x7f0 fs/read_write.c:653
 do_iter_write+0x154/0x540 fs/read_write.c:932
 vfs_writev+0x18a/0x340 fs/read_write.c:977
 do_writev+0xfc/0x2a0 fs/read_write.c:1012
 SYSC_writev fs/read_write.c:1085 [inline]
 SyS_writev+0x27/0x30 fs/read_write.c:1082
 entry_SYSCALL_64_fastpath+0x29/0xa0
RIP: 0033:0x452f19
RSP: 002b:00007ff309da5c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452f19
RDX: 0000000000000001 RSI: 0000000020f7ffe0 RDI: 0000000000000013
RBP: 00000000000005c4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f7b00
R13: 00000000ffffffff R14: 00007ff309da66d4 R15: 0000000000000000
Code: 04 01 84 c0 74 04 3c 03 7e 23 8b 8b 80 00 00 00 41 57 48 c7 c7 e0 aa 1f 86 52 56 4c 89 ea 41 50 4c 89 e6 45 89 f0 e8 06 f3 26 fd <0f> 0b 4c 89 4d b8 4c 89 45 c0 48 89 75 c8 48 89 55 d0 e8 47 44 
RIP: skb_panic+0x162/0x1f0 net/core/skbuff.c:100 RSP: ffff8801c54b64e8
---[ end trace 9fb3dc23137463af ]---