general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 0 PID: 10740 Comm: syz-executor.0 Not tainted 5.13.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:reuseport_add_sock+0x237/0x7e0 net/core/sock_reuseport.c:161
Code: 89 7c 24 30 e8 da af 91 f9 eb 0f 48 89 6c 24 28 4c 89 7c 24 30 e8 c9 af 91 f9 4d 8d 7e 12 4c 89 f8 4c 89 7c 24 10 49 c1 ef 03 <43> 8a 04 27 84 c0 0f 85 d3 03 00 00 41 0f b7 6e 12 49 8d 5e 10 48
RSP: 0018:ffffc9000243fc80 EFLAGS: 00010202
RAX: 0000000000000012 RBX: ffff88801d23b798 RCX: ffff888019f70000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 1ffff11003a476f3 R08: ffffffff87ed5a40 R09: 0000000000000003
R10: fffff52000487f65 R11: 0000000000000004 R12: dffffc0000000000
R13: ffff88801d23b300 R14: 0000000000000000 R15: 0000000000000002
FS:  00007f89c5e29700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f89c5e08718 CR3: 00000000143e7000 CR4: 00000000001506f0
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+0x492/0x560 net/sctp/input.c:778
 sctp_listen_start net/sctp/socket.c:8392 [inline]
 sctp_inet_listen+0x729/0xa00 net/sctp/socket.c:8447
 __sys_listen+0x1b0/0x230 net/socket.c:1671
 __do_sys_listen net/socket.c:1680 [inline]
 __se_sys_listen net/socket.c:1678 [inline]
 __x64_sys_listen+0x56/0x60 net/socket.c:1678
 do_syscall_64+0x3f/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:00007f89c5e29188 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: 00007ffc6e4a5ebf R14: 00007f89c5e29300 R15: 0000000000022000
Modules linked in:
---[ end trace ab672144fa939cc5 ]---
RIP: 0010:reuseport_add_sock+0x237/0x7e0 net/core/sock_reuseport.c:161
Code: 89 7c 24 30 e8 da af 91 f9 eb 0f 48 89 6c 24 28 4c 89 7c 24 30 e8 c9 af 91 f9 4d 8d 7e 12 4c 89 f8 4c 89 7c 24 10 49 c1 ef 03 <43> 8a 04 27 84 c0 0f 85 d3 03 00 00 41 0f b7 6e 12 49 8d 5e 10 48
RSP: 0018:ffffc9000243fc80 EFLAGS: 00010202
RAX: 0000000000000012 RBX: ffff88801d23b798 RCX: ffff888019f70000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 1ffff11003a476f3 R08: ffffffff87ed5a40 R09: 0000000000000003
R10: fffff52000487f65 R11: 0000000000000004 R12: dffffc0000000000
R13: ffff88801d23b300 R14: 0000000000000000 R15: 0000000000000002
FS:  00007f89c5e29700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f89c5e08718 CR3: 00000000143e7000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400