RBP: 00007fa3020291d0 R08: 0000000020618000 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffc6c076d1f R14: 00007fa302029300 R15: 0000000000022000
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: 0 PID: 3309 Comm: syz-executor.5 Not tainted 4.19.197-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:flex_array_get+0x27/0x250 lib/flex_array.c:320
Code: 90 90 90 41 56 41 55 41 54 55 89 f5 53 48 89 fb 48 83 ec 08 e8 ba 9e ee fd 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e b7 01 00 00 44 8b 2b 31 ff 44
RSP: 0018:ffff888047e4f878 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87764f00
RDX: 0000000000000000 RSI: ffffffff8373e136 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff888097f44b68
R13: 0000000000000000 R14: ffff88809f870d00 R15: 1ffff11012fe8971
FS:  00000000025fc400(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30624000 CR3: 0000000046ec2000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 sctp_stream_out include/net/sctp/structs.h:1474 [inline]
 sctp_sched_dequeue_done+0x1f8/0x2e0 net/sctp/stream_sched.c:255
 __sctp_outq_teardown+0x6cc/0xc20 net/sctp/outqueue.c:268
 sctp_association_free+0x212/0x7b0 net/sctp/associola.c:361
 sctp_cmd_delete_tcb net/sctp/sm_sideeffect.c:944 [inline]
 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1332 [inline]
 sctp_side_effects net/sctp/sm_sideeffect.c:1199 [inline]
 sctp_do_sm+0x39ee/0x5110 net/sctp/sm_sideeffect.c:1170
 sctp_primitive_SHUTDOWN+0x9b/0xc0 net/sctp/primitive.c:104
 sctp_close+0x3d9/0x7f0 net/sctp/socket.c:1574
 inet_release+0xd7/0x1e0 net/ipv4/af_inet.c:427
 __sock_release+0xcd/0x2a0 net/socket.c:599
 sock_close+0x15/0x20 net/socket.c:1212
 __fput+0x2ce/0x890 fs/file_table.c:278
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4193eb
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007ffc6c076d80 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00000000004193eb
RDX: 0000000000000000 RSI: ffffffff837718c5 RDI: 0000000000000004
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b30621604
R10: 0000000000000f98 R11: 0000000000000293 R12: 000000000056cb00
R13: 000000000056cb00 R14: 000000000056bf80 R15: 00000000000940d4
Modules linked in:
---[ end trace e2a87b00caca1996 ]---
RIP: 0010:flex_array_get+0x27/0x250 lib/flex_array.c:320
Code: 90 90 90 41 56 41 55 41 54 55 89 f5 53 48 89 fb 48 83 ec 08 e8 ba 9e ee fd 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e b7 01 00 00 44 8b 2b 31 ff 44
RSP: 0018:ffff888047e4f878 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87764f00
RDX: 0000000000000000 RSI: ffffffff8373e136 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff888097f44b68
R13: 0000000000000000 R14: ffff88809f870d00 R15: 1ffff11012fe8971
FS:  00000000025fc400(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb434a46000 CR3: 0000000046ec2000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400