RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007faa93be96d4
R13: 00000000004c5ff5 R14: 00000000004da7d8 R15: 0000000000000005
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
kobject: 'loop4' (000000002b5b5374): kobject_uevent_env
CPU: 0 PID: 15809 Comm: syz-executor.5 Not tainted 4.19.38 #6
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'loop4' (000000002b5b5374): fill_kobj_path: path = '/devices/virtual/block/loop4'
RIP: 0010:flex_array_get+0x2d/0x260 lib/flex_array.c:320
Code: e5 41 57 41 56 41 55 41 54 41 89 f4 53 48 89 fb 48 83 ec 08 e8 b4 4f 49 fe 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 c2 01 00 00 44 8b 33 31 ff 44
RSP: 0018:ffff888062c5f818 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff867036c9
RDX: 0000000000000000 RSI: ffffffff8322203c RDI: 0000000000000000
kobject: 'loop3' (00000000aa8d4f75): kobject_uevent_env
RBP: ffff888062c5f848 R08: ffff8880793742c0 R09: 0000000000000002
R10: ffffed1015d24732 R11: ffff8880ae923993 R12: 0000000000000000
R13: ffff8880616833a0 R14: 0000000000000000 R15: ffff88809a453c00
FS:  00000000025b3940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9eeac6b028 CR3: 000000008cded000 CR4: 00000000001406f0
Call Trace:
 sctp_stream_out include/net/sctp/structs.h:1471 [inline]
 sctp_sched_dequeue_done+0x20d/0x2f0 net/sctp/stream_sched.c:255
kobject: 'loop3' (00000000aa8d4f75): fill_kobj_path: path = '/devices/virtual/block/loop3'
 __sctp_outq_teardown+0x6ef/0xc60 net/sctp/outqueue.c:267
 sctp_outq_free+0x16/0x20 net/sctp/outqueue.c:291
 sctp_association_free+0x208/0x79a net/sctp/associola.c:360
 sctp_cmd_delete_tcb net/sctp/sm_sideeffect.c:939 [inline]
 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1353 [inline]
 sctp_side_effects net/sctp/sm_sideeffect.c:1220 [inline]
 sctp_do_sm+0x2a79/0x5780 net/sctp/sm_sideeffect.c:1191
 sctp_primitive_SHUTDOWN+0xa0/0xd0 net/sctp/primitive.c:104
 sctp_close+0x445/0x860 net/sctp/socket.c:1560
 inet_release+0x105/0x1f0 net/ipv4/af_inet.c:428
 __sock_release+0xd3/0x2b0 net/socket.c:579
 sock_close+0x1b/0x30 net/socket.c:1140
 __fput+0x2df/0x8b0 fs/file_table.c:278
 ____fput+0x16/0x20 fs/file_table.c:309
 task_work_run+0x14a/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x273/0x2c0 arch/x86/entry/common.c:166
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x412b61
Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 e4 1a 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffeb865cf20 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000412b61
RDX: 0000001b2bd20000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000001 R08: 000000007328fb08 R09: ffffffffffffffff
R10: 00007ffeb865d000 R11: 0000000000000293 R12: 000000000073c900
R13: 000000000073c900 R14: 0000000000055293 R15: 000000000073bf0c
Modules linked in:
---[ end trace 895bc88f49d3e47f ]---
RIP: 0010:flex_array_get+0x2d/0x260 lib/flex_array.c:320
Code: e5 41 57 41 56 41 55 41 54 41 89 f4 53 48 89 fb 48 83 ec 08 e8 b4 4f 49 fe 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 c2 01 00 00 44 8b 33 31 ff 44
RSP: 0018:ffff888062c5f818 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff867036c9
RDX: 0000000000000000 RSI: ffffffff8322203c RDI: 0000000000000000
RBP: ffff888062c5f848 R08: ffff8880793742c0 R09: 0000000000000002
R10: ffffed1015d24732 R11: ffff8880ae923993 R12: 0000000000000000
R13: ffff8880616833a0 R14: 0000000000000000 R15: ffff88809a453c00
FS:  00000000025b3940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f104bfd6db8 CR3: 000000008cded000 CR4: 00000000001406f0