general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 1 PID: 19509 Comm: syz-executor.1 Not tainted 5.13.0-rc2-next-20210518-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:reuseport_add_sock+0x174/0x8d0 net/core/sock_reuseport.c:161
Code: e8 51 4c 58 fa 66 41 83 fc 01 0f 85 57 06 00 00 e8 81 45 58 fa 4c 8d 65 12 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <0f> b6 14 02 4c 89 e0 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 00
RSP: 0018:ffffc9000316fcb0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888029cd8880 RCX: 0000000000000000
RDX: 0000000000000002 RSI: ffffffff871d8e4f RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000003
R10: ffffffff871d8db9 R11: 0000000000000000 R12: 0000000000000012
R13: ffff888046050498 R14: ffff888046050000 R15: 0000000000000000
FS:  00007fa25f33b700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004e4da5 CR3: 0000000041e7e000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __sctp_hash_endpoint net/sctp/input.c:750 [inline]
 sctp_hash_endpoint+0x4fe/0x5f0 net/sctp/input.c:778
 sctp_listen_start net/sctp/socket.c:8391 [inline]
 sctp_inet_listen+0x71c/0x930 net/sctp/socket.c:8446
 __sys_listen+0x17d/0x250 net/socket.c:1671
 __do_sys_listen net/socket.c:1680 [inline]
 __se_sys_listen net/socket.c:1678 [inline]
 __x64_sys_listen+0x50/0x70 net/socket.c:1678
 do_syscall_64+0x31/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665d9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa25f33b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000032
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: 0000000000000050 RDI: 0000000000000004
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007fffadd0256f R14: 00007fa25f33b300 R15: 0000000000022000
Modules linked in:
---[ end trace 90708cbb0ec73849 ]---
RIP: 0010:reuseport_add_sock+0x174/0x8d0 net/core/sock_reuseport.c:161
Code: e8 51 4c 58 fa 66 41 83 fc 01 0f 85 57 06 00 00 e8 81 45 58 fa 4c 8d 65 12 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <0f> b6 14 02 4c 89 e0 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 00
RSP: 0018:ffffc9000316fcb0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888029cd8880 RCX: 0000000000000000
RDX: 0000000000000002 RSI: ffffffff871d8e4f RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000003
R10: ffffffff871d8db9 R11: 0000000000000000 R12: 0000000000000012
R13: ffff888046050498 R14: ffff888046050000 R15: 0000000000000000
FS:  00007fa25f33b700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004e4da5 CR3: 0000000041e7e000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400