RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000084
RDX: 0000000000000066 RSI: 0000000020000040 RDI: 0000000020000140
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 13515 Comm: syz-executor.5 Not tainted 5.1.0-rc1 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:sctp_assoc_rwnd_increase+0x34/0x520 net/sctp/associola.c:1498
Code: 41 54 49 89 fc 53 89 f3 48 83 ec 10 e8 75 a2 ee fa 49 8d bc 24 60 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 2f 04 00 00 45 8b ac 24 60 06
RSP: 0018:ffff88805a2376f8 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90010a7d000
RDX: 00000000000000cb RSI: ffffffff8681cd1b RDI: 000000000000065f
RBP: ffff88805a237730 R08: ffff88805b7b64c0 R09: ffff88805b7b6d88
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffffffffff
R13: 0000000000000000 R14: ffff88805c879240 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:00000000f5d8db40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000000625208 CR3: 0000000097010000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 sctp_ulpevent_release_data net/sctp/ulpevent.c:1092 [inline]
 sctp_ulpevent_free+0x21f/0x4e0 net/sctp/ulpevent.c:1129
 sctp_queue_purge_ulpevents+0xc4/0x110 net/sctp/ulpevent.c:1146
 sctp_close+0x148/0x860 net/sctp/socket.c:1515
 inet_release+0x105/0x1f0 net/ipv4/af_inet.c:428
 inet6_release+0x53/0x80 net/ipv6/af_inet6.c:473
 __sock_release+0x1fe/0x2b0 net/socket.c:579
 sock_release+0x18/0x20 net/socket.c:599
 sctp_do_peeloff+0x38a/0x470 net/sctp/socket.c:5649
 sctp_getsockopt_peeloff_common.isra.0+0x8e/0x270 net/sctp/socket.c:5665
 sctp_getsockopt_peeloff net/sctp/socket.c:5707 [inline]
 sctp_getsockopt net/sctp/socket.c:7802 [inline]
 sctp_getsockopt+0x1ec1/0x673d net/sctp/socket.c:7758
 compat_sock_common_getsockopt+0x10e/0x150 net/core/sock.c:3092
 __compat_sys_getsockopt+0x16f/0x2c0 net/compat.c:473
 __do_compat_sys_getsockopt net/compat.c:486 [inline]
 __se_compat_sys_getsockopt net/compat.c:483 [inline]
 __ia32_compat_sys_getsockopt+0xbd/0x150 net/compat.c:483
 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline]
 do_fast_syscall_32+0x281/0xc98 arch/x86/entry/common.c:397
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7fb2869
Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f5d8d0cc EFLAGS: 00000296 ORIG_RAX: 000000000000016d
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000084
RDX: 0000000000000066 RSI: 0000000020000040 RDI: 0000000020000140
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 8f762166879ebb85 ]---
RIP: 0010:sctp_assoc_rwnd_increase+0x34/0x520 net/sctp/associola.c:1498
Code: 41 54 49 89 fc 53 89 f3 48 83 ec 10 e8 75 a2 ee fa 49 8d bc 24 60 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 2f 04 00 00 45 8b ac 24 60 06
RSP: 0018:ffff88805a2376f8 EFLAGS: 00010203
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90010a7d000
RDX: 00000000000000cb RSI: ffffffff8681cd1b RDI: 000000000000065f
RBP: ffff88805a237730 R08: ffff88805b7b64c0 R09: ffff88805b7b6d88
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffffffffff
R13: 0000000000000000 R14: ffff88805c879240 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:00000000f5d8db40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000000625208 CR3: 0000000097010000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400