EXT4-fs (sda1): Unrecognized mount option "euid=00000000000000000000" or missing value
==================================================================
BUG: KASAN: use-after-free in memset include/linux/string.h:332 [inline]
BUG: KASAN: use-after-free in __ext4_expand_extra_isize.isra.0+0x10b/0x1c0 fs/ext4/inode.c:5796
Write of size 1091502048 at addr ffff8881d1fc81a0 by task rs:main Q:Reg/1631

CPU: 0 PID: 1631 Comm: rs:main Q:Reg Not tainted 4.14.142+ #0
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xca/0x134 lib/dump_stack.c:53
 print_address_description+0x60/0x226 mm/kasan/report.c:187
 __kasan_report.cold+0x1a/0x41 mm/kasan/report.c:316
 memset+0x20/0x40 mm/kasan/common.c:113
 memset include/linux/string.h:332 [inline]
 __ext4_expand_extra_isize.isra.0+0x10b/0x1c0 fs/ext4/inode.c:5796
 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5848 [inline]
 ext4_mark_inode_dirty+0x471/0x7f0 fs/ext4/inode.c:5924
kasan: CONFIG_KASAN_INLINE enabled
 ext4_da_write_end+0x5ab/0xc40 fs/ext4/inode.c:3190
 generic_perform_write+0x281/0x460 mm/filemap.c:3143
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:
 __generic_file_write_iter+0x32e/0x550 mm/filemap.c:3257
CPU: 1 PID: 7755 Comm: syz-executor.2 Not tainted 4.14.142+ #0
 ext4_file_write_iter+0x58f/0xdb0 fs/ext4/file.c:268
task: 0000000038df89c0 task.stack: 00000000ae5a8b37
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:mm_update_next_owner+0x391/0x610 kernel/exit.c:451
RSP: 0018:ffff8881c64afd28 EFLAGS: 00010202
 call_write_iter include/linux/fs.h:1788 [inline]
 new_sync_write fs/read_write.c:471 [inline]
 __vfs_write+0x401/0x5a0 fs/read_write.c:484
RAX: 0000000000000002 RBX: dffffc0000000000 RCX: ffffffffaa40f55b
RDX: 0000000000000000 RSI: 0000000000000100 RDI: ffff8881d0c69e30
RBP: 0000000000000000 R08: ffff8881d226cab8 R09: fffffbfff58c1219
R10: fffffbfff58c1218 R11: ffffffffac6090c3 R12: ffff888195c6c780
R13: 0000000000000010 R14: ffff88819e6ac680 R15: ffff8881d2ed5800
 vfs_write+0x17f/0x4d0 fs/read_write.c:546
FS:  0000000000000000(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000
 SYSC_write fs/read_write.c:594 [inline]
 SyS_write+0x102/0x250 fs/read_write.c:586
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000402780 CR3: 000000009bc26006 CR4: 00000000001606a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 exit_mm kernel/exit.c:544 [inline]
 do_exit+0x8fd/0x2a20 kernel/exit.c:862
 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x7ffa594f719d
RSP: 002b:00007ffa57a98000 EFLAGS: 00000293
 ORIG_RAX: 0000000000000001
 do_group_exit+0x100/0x2e0 kernel/exit.c:978
RAX: ffffffffffffffda RBX: 0000000000000088 RCX: 00007ffa594f719d
 SYSC_exit_group kernel/exit.c:989 [inline]
 SyS_exit_group+0x19/0x20 kernel/exit.c:987
RDX: 0000000000000088 RSI: 0000000000c87a90 RDI: 0000000000000001
RBP: 0000000000c87a90 R08: 303030303030303d R09: 3030303030303030
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292
R13: 00007ffa57a98480 R14: 0000000000000001 R15: 0000000000c87890
 entry_SYSCALL_64_after_hwframe+0x42/0xb7

RIP: 0033:0x4598e9
The buggy address belongs to the page:
RSP: 002b:00007ffc19025848 EFLAGS: 00000246
page:ffffea000747f200 count:2 mapcount:0 mapping:ffff8881da4170d0 index:0x427
 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00000000004598e9
flags: 0x400000000000203a(referenced|dirty|lru|active|private)
RDX: 0000000000457db1 RSI: 00007ffc19025880 RDI: 000000000000000b
raw: 400000000000203a ffff8881da4170d0 0000000000000427 00000002ffffffff
RBP: 0000000000000001 R08: ffffffffffffffff R09: 0000000000000000
raw: ffffea000747f260 ffffea0007478c20 ffff8881ce762d20 ffff8881da81aa80
R10: 00000000cb652bc0 R11: 0000000000000246 R12: 000000000075bf20
page dumped because: kasan: bad access detected
R13: 000000000075c9a0 R14: 0000000000761010 R15: ffffffffffffffff
page->mem_cgroup:ffff8881da81aa80
Code: 

00 
Memory state around the buggy address:
48 
 ffff8881d1ffff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
8d 
 ffff8881d1ffff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
bd 
>ffff8881d2000000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
c8 
                   ^
02 
 ffff8881d2000080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
00 
 ffff8881d2000100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
00 
==================================================================
48 
kasan: CONFIG_KASAN_INLINE enabled
89 
kasan: GPF could be caused by NULL-ptr deref or user memory access
f8 48 c1 e8 03 80 3c 18 00 0f 85 44 02 00 00 48 8b ad c8 02 00 00 4c 8d 6d 10 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 1b 02 00 00 48 8b 45 10 48 8d a8 58 fa ff ff 
RIP: __read_once_size include/linux/compiler.h:183 [inline] RSP: ffff8881c64afd28
RIP: mm_update_next_owner+0x391/0x610 kernel/exit.c:451 RSP: ffff8881c64afd28
general protection fault: 0000 [#2] PREEMPT SMP KASAN NOPTI
---[ end trace f1fba5dd7f02f13d ]---
Modules linked in:
CPU: 0 PID: 1631 Comm: rs:main Q:Reg Tainted: G    B D         4.14.142+ #0
task: 00000000afae39d7 task.stack: 00000000663034d5