ntfs: (device loop5): parse_options(): Option utf8 is no longer supported, using option nls=utf8. Please use option nls=utf8 in the future and make sure utf8 is compiled either as a module or into the kernel.
------------[ cut here ]------------
kernel BUG at mm/slab.c:4427!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
ntfs: (device loop5): parse_options(): Unrecognized mount option fsmagic.
CPU: 1 PID: 10507 Comm: syz-executor.2 Not tainted 4.14.141 #37
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880a8ff0440 task.stack: ffff8880848e8000
RIP: 0010:__check_heap_object+0x58/0x5a mm/slab.c:4427
RSP: 0018:ffff8880848efbc8 EFLAGS: 00010293
RAX: 00000000000f0f0f RBX: 000000000000073a RCX: 000000000000000c
RDX: 00000000e1e1e1df RSI: 000000000000073a RDI: ffff88805de5887d
RBP: ffff8880848efc00 R08: ffff8880aa800dc0 R09: ffff88805de58880
R10: ffff88821fff8050 R11: 0000000000000001 R12: ffff88805de5887d
R13: ffffea0001779600 R14: 0000000000000001 R15: ffff88805de58fb7
kobject: 'loop1' (ffff8880a497d1a0): fill_kobj_path: path = '/devices/virtual/block/loop1'
FS:  00007f80fe2ce700(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000960004 CR3: 000000004d6ba000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 check_object_size include/linux/thread_info.h:108 [inline]
 check_copy_size include/linux/thread_info.h:139 [inline]
 copy_to_user include/linux/uaccess.h:154 [inline]
 bpf_test_finish.isra.0+0x9a/0x150 net/bpf/test_run.c:59
 bpf_prog_test_run_skb+0x5af/0x9a0 net/bpf/test_run.c:144
 bpf_prog_test_run kernel/bpf/syscall.c:1258 [inline]
 SYSC_bpf kernel/bpf/syscall.c:1520 [inline]
 SyS_bpf+0x6ad/0x2da8 kernel/bpf/syscall.c:1469
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459879
RSP: 002b:00007f80fe2cdc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459879
RDX: 0000000000000028 RSI: 00000000200000c0 RDI: 000000000000000a
RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f80fe2ce6d4
R13: 00000000004bfbf2 R14: 00000000004d18b8 R15: 00000000ffffffff
Code: e8 41 39 40 24 76 24 41 0f af 40 14 4c 01 c8 48 29 c7 49 63 40 74 48 39 f8 72 08 48 29 f8 48 39 f0 73 05 49 8b 40 58 c3 31 c0 c3 <0f> 0b 44 89 e9 48 c7 c7 40 de 41 87 89 75 d4 4c 8d 45 cc 81 e1 
RIP: __check_heap_object+0x58/0x5a mm/slab.c:4427 RSP: ffff8880848efbc8
---[ end trace 853478c3a8786cba ]---
kobject: 'loop5' (ffff8880a4ac4ae0): kobject_uevent_env