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 NOPTI
Modules linked in:
CPU: 1 PID: 1848 Comm: syz-executor.0 Not tainted 4.14.136+ #27
task: 00000000c9bb1347 task.stack: 0000000036ed451e
RIP: 0010:kobject_uevent_env+0xa3/0xc60 lib/kobject_uevent.c:355
RSP: 0018:ffff88819fdbfaa8 EFLAGS: 00010206
RAX: 0000000000000018 RBX: 0000000000000002 RCX: 1ffff1103a5db104
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000000000c0
RBP: ffff8881c6a973d0 R08: 0000000000000001 R09: 0000000000000001
R10: fffffbfff55c5961 R11: ffffffffaae2cb0b R12: 00000000000000a0
R13: dffffc0000000000 R14: ffff8881c6a972c8 R15: 00000000000000a0
FS:  0000000002662940(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffeec0d2d8 CR3: 000000019fdfa001 CR4: 00000000001606a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 loop_clr_fd+0x4ab/0xad0 drivers/block/loop.c:1059
 lo_ioctl+0x460/0x1a30 drivers/block/loop.c:1414
Code: 03 42 80 3c 28 00 0f 85 44 0a 00 00 4d 8b 64 24 18 4d 85 e4 0f 84 22 02 00 00 e8 99 b0 ab fe 49 8d 7c 24 20 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 10 0a 00 00 49 8b 6c 24 20 48 85 ed 74 b0 
RIP: kobject_uevent_env+0xa3/0xc60 lib/kobject_uevent.c:355 RSP: ffff88819fdbfaa8
---[ end trace 75ab6e6dcb2aa7cc ]---
Kernel panic - not syncing: Fatal exception
Kernel Offset: 0x27600000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
Rebooting in 86400 seconds..