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: 7462 Comm: syz-executor2 Not tainted 4.19.0-rc3-next-20180912+ #72
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:open_ubi fs/ubifs/super.c:1964 [inline]
RIP: 0010:ubifs_mount+0x1ba/0x7756 fs/ubifs/super.c:2152
Code: ff ff e8 19 e5 01 ff 49 81 fe 00 f0 ff ff 0f 86 16 04 00 00 e8 d7 e3 01 ff 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 48 89 da 83 e2 07 38 d0 7f 08 84 c0 0f 85 b7 1a 00 00
RSP: 0018:ffff88014bc47620 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000284d000
RDX: 0000000000000000 RSI: ffffffff827b4ba9 RDI: 0000000000000007
RBP: ffff88014bc47b88 R08: ffff88014ef98400 R09: ffffed003b585b57
R10: ffffed003b585b57 R11: ffff8801dac2dabb R12: 0000000000000000
R13: ffffffff89990c40 R14: ffffffffffffffea R15: ffff88014bc47b60
FS:  00007f5234ba2700(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30222000 CR3: 00000001520d2000 CR4: 00000000001406f0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 legacy_get_tree+0x131/0x460 fs/fs_context.c:721
 vfs_get_tree+0x1cb/0x5c0 fs/super.c:1787
 do_new_mount fs/namespace.c:2634 [inline]
 do_mount+0x70c/0x1db0 fs/namespace.c:2960
 ksys_mount+0x12d/0x140 fs/namespace.c:3176
 __do_sys_mount fs/namespace.c:3190 [inline]
 __se_sys_mount fs/namespace.c:3187 [inline]
 __x64_sys_mount+0xbe/0x150 fs/namespace.c:3187
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4572d9
Code: fd b4 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 b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f5234ba1c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f5234ba26d4 RCX: 00000000004572d9
RDX: 00000000200000c0 RSI: 00000000200002c0 RDI: 00000000200001c0
RBP: 00000000009300a0 R08: 0000000020000140 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004d3590 R14: 00000000004c84d9 R15: 0000000000000000
Modules linked in:
kobject: 'loop4' (00000000add6343d): kobject_uevent_env
---[ end trace e1a95dd9d73a8360 ]---
RIP: 0010:open_ubi fs/ubifs/super.c:1964 [inline]
RIP: 0010:ubifs_mount+0x1ba/0x7756 fs/ubifs/super.c:2152
Code: ff ff e8 19 e5 01 ff 49 81 fe 00 f0 ff ff 0f 86 16 04 00 00 e8 d7 e3 01 ff 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 48 89 da 83 e2 07 38 d0 7f 08 84 c0 0f 85 b7 1a 00 00
kobject: 'loop4' (00000000add6343d): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop3' (00000000433114ac): kobject_uevent_env
kobject: 'loop3' (00000000433114ac): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (0000000050111c23): kobject_uevent_env
kobject: 'loop1' (0000000050111c23): fill_kobj_path: path = '/devices/virtual/block/loop1'
RSP: 0018:ffff88014bc47620 EFLAGS: 00010246
kobject: 'loop5' (000000002b001dd3): kobject_uevent_env
kobject: 'loop5' (000000002b001dd3): fill_kobj_path: path = '/devices/virtual/block/loop5'
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000284d000
RDX: 0000000000000000 RSI: ffffffff827b4ba9 RDI: 0000000000000007
RBP: ffff88014bc47b88 R08: ffff88014ef98400 R09: ffffed003b585b57
R10: ffffed003b585b57 R11: ffff8801dac2dabb R12: 0000000000000000
R13: ffffffff89990c40 R14: ffffffffffffffea R15: ffff88014bc47b60
kobject: 'loop0' (0000000083ecb2a4): kobject_uevent_env
kobject: 'loop0' (0000000083ecb2a4): fill_kobj_path: path = '/devices/virtual/block/loop0'
FS:  00007f5234ba2700(0000) GS:ffff8801dac00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fba669e0000 CR3: 00000001520d2000 CR4: 00000000001406f0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600