RBP: 000000000072bf00 R08: 0000000020001a40 R09: 0000000000000000
R10: 0000000001004430 R11: 0000000000000246 R12: 00007f80e43506d4
R13: 00000000004c2b4a R14: 00000000004d41f0 R15: 0000000000000003
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: 7557 Comm: syz-executor1 Not tainted 4.19.0-next-20181030+ #101
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:put_fs_context+0x31/0x5a0 fs/fs_context.c:487
Code: 56 41 55 41 54 53 48 89 fb 4c 8d ab 98 00 00 00 48 83 ec 18 e8 10 25 9f ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 03 05 00 00 4c 8b a3 98 00 00 00 4d 85 e4 74 66
RSP: 0018:ffff8801831f7bd8 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: fffffffffffffff4 RCX: ffffc9000bac5000
RDX: 0000000000000011 RSI: ffffffff81e04360 RDI: fffffffffffffff4
RBP: ffff8801831f7c18 R08: ffff8801c37c8280 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801c2c08830
R13: 000000000000008c R14: ffff8801b7f76540 R15: ffff8801b7f648c0
FS:  00007f80e4350700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000072c000 CR3: 000000017ee77000 CR4: 00000000001426f0
DR0: 0000000020000080 DR1: 0000000020000080 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 do_remount fs/namespace.c:2428 [inline]
 do_mount+0xda4/0x1ff0 fs/namespace.c:3020
 ksys_mount+0x12d/0x140 fs/namespace.c:3245
 __do_sys_mount fs/namespace.c:3259 [inline]
 __se_sys_mount fs/namespace.c:3256 [inline]
 __x64_sys_mount+0xbe/0x150 fs/namespace.c:3256
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457569
Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f80e434fc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f80e434fc90 RCX: 0000000000457569
RDX: 0000000020001800 RSI: 00000000200017c0 RDI: 0000000000000000
RBP: 000000000072bf00 R08: 0000000020001a40 R09: 0000000000000000
R10: 0000000001004430 R11: 0000000000000246 R12: 00007f80e43506d4
R13: 00000000004c2b4a R14: 00000000004d41f0 R15: 0000000000000003
Modules linked in:
kobject: 'ppp0' (000000006d887ca1): kobject_cleanup, parent           (null)
kobject: 'loop3' (00000000604fc0df): kobject_uevent_env
kobject: 'loop3' (00000000604fc0df): fill_kobj_path: path = '/devices/virtual/block/loop3'
---[ end trace 075f5a9bb0d8eb77 ]---
kobject: 'ppp0' (000000006d887ca1): calling ktype release
kobject: 'eql' (00000000b4715f74): kobject_add_internal: parent: 'net', set: 'devices'
kobject: 'loop0' (00000000c873f423): kobject_uevent_env
RIP: 0010:put_fs_context+0x31/0x5a0 fs/fs_context.c:487
Code: 56 41 55 41 54 53 48 89 fb 4c 8d ab 98 00 00 00 48 83 ec 18 e8 10 25 9f ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 03 05 00 00 4c 8b a3 98 00 00 00 4d 85 e4 74 66
kobject: 'ppp0': free name
kobject: 'eql' (00000000b4715f74): kobject_uevent_env
kobject: 'loop2' (00000000dde8f322): kobject_uevent_env
RSP: 0018:ffff8801831f7bd8 EFLAGS: 00010207
kobject: 'loop2' (00000000dde8f322): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'eql' (00000000b4715f74): fill_kobj_path: path = '/devices/virtual/net/eql'
RAX: dffffc0000000000 RBX: fffffffffffffff4 RCX: ffffc9000bac5000
kobject: 'loop0' (00000000c873f423): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'queues' (00000000ef7b01ae): kobject_add_internal: parent: 'eql', set: '<NULL>'
RDX: 0000000000000011 RSI: ffffffff81e04360 RDI: fffffffffffffff4
kobject: 'loop2' (00000000dde8f322): kobject_uevent_env
kobject: 'queues' (00000000ef7b01ae): kobject_uevent_env
RBP: ffff8801831f7c18 R08: ffff8801c37c8280 R09: 0000000000000000
kobject: 'loop2' (00000000dde8f322): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop2' (00000000dde8f322): kobject_uevent_env
kobject: 'queues' (00000000ef7b01ae): kobject_uevent_env: filter function caused the event to drop!
kobject: 'rx-0' (00000000480a893c): kobject_add_internal: parent: 'queues', set: 'queues'
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801c2c08830
kobject: 'loop0' (00000000c873f423): kobject_uevent_env
kobject: 'rx-0' (00000000480a893c): kobject_uevent_env
kobject: 'loop0' (00000000c873f423): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000dde8f322): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'rx-0' (00000000480a893c): fill_kobj_path: path = '/devices/virtual/net/eql/queues/rx-0'
R13: 000000000000008c R14: ffff8801b7f76540 R15: ffff8801b7f648c0
kobject: 'loop4' (000000008ab278aa): kobject_uevent_env
FS:  00007f80e4350700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
kobject: 'loop4' (000000008ab278aa): fill_kobj_path: path = '/devices/virtual/block/loop4'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'tx-0' (000000009767ff68): kobject_add_internal: parent: 'queues', set: 'queues'
CR2: 00007ffdb4e6b970 CR3: 000000017ee77000 CR4: 00000000001426e0
kobject: 'tx-0' (000000009767ff68): kobject_uevent_env
kobject: 'tx-0' (000000009767ff68): fill_kobj_path: path = '/devices/virtual/net/eql/queues/tx-0'
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000005800
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400