loop0: detected capacity change from 0 to 1024
=======================================================
WARNING: The mand mount option has been deprecated and
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
EXT4-fs: Ignoring removed oldalloc option
EXT4-fs: Ignoring removed orlov option
EXT4-fs (loop0): stripe (2) is not aligned with cluster size (16), stripe is disabled
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
EXT4-fs (loop0): start 0, size 131072, fe_logical 16843008
------------[ cut here ]------------
kernel BUG at fs/ext4/mballoc.c:4656!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:ext4_mb_normalize_request+0x1cc9/0x1d00 fs/ext4/mballoc.c:4656
Code: 63 a5 ff 48 8b 44 24 38 48 8b 38 48 c7 c6 c0 2f e4 8b 48 c7 c2 40 48 e4 8b 48 8b 4c 24 28 4d 89 f0 49 89 d9 e8 98 65 0a 00 90 <0f> 0b e8 90 af 39 ff 90 0f 0b e8 88 af 39 ff 90 0f 0b e8 80 af 39
RSP: 0018:ffffc9000e146cc0 EFLAGS: 00010246
RAX: fa69f5c5234d9e00 RBX: 0000000001010100 RCX: fa69f5c5234d9e00
RDX: ffffc9000ec6a000 RSI: 00000000000008ff RDI: 0000000000000900
RBP: 0000000000000000 R08: ffffc9000e146907 R09: 1ffff92001c28d20
R10: dffffc0000000000 R11: fffff52001c28d21 R12: ffffffff01010800
R13: dffffc0000000000 R14: 0000000000020000 R15: 0000000000020000
FS:  00007fe23bd1f6c0(0000) GS:ffff88808ca5b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000002c00 CR3: 0000000044434000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ext4_mb_new_blocks+0xc7f/0x4780 fs/ext4/mballoc.c:6309
 ext4_ext_map_blocks+0x150a/0x58b0 fs/ext4/extents.c:4436
 ext4_map_create_blocks+0x11d/0x540 fs/ext4/inode.c:616
 ext4_map_blocks+0x7cd/0x11d0 fs/ext4/inode.c:809
 _ext4_get_block+0x1e3/0x470 fs/ext4/inode.c:909
 ext4_get_block_unwritten+0x2e/0x100 fs/ext4/inode.c:942
 ext4_block_write_begin+0xb14/0x1950 fs/ext4/inode.c:1196
 ext4_write_begin+0xb40/0x18c0 fs/ext4/ext4_jbd2.h:-1
 ext4_da_write_begin+0x355/0xd80 fs/ext4/inode.c:3123
 generic_perform_write+0x2e2/0x8f0 mm/filemap.c:4314
 ext4_buffered_write_iter+0xce/0x3a0 fs/ext4/file.c:300
 ext4_file_write_iter+0x298/0x1bf0 fs/ext4/file.c:-1
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x61d/0xb90 fs/read_write.c:688
 ksys_pwrite64 fs/read_write.c:795 [inline]
 __do_sys_pwrite64 fs/read_write.c:803 [inline]
 __se_sys_pwrite64 fs/read_write.c:800 [inline]
 __x64_sys_pwrite64+0x199/0x230 fs/read_write.c:800
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe23ad9c629
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe23bd1f028 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fe23b015fa0 RCX: 00007fe23ad9c629
RDX: 00000000200000c1 RSI: 00002000000000c0 RDI: 0000000000000006
RBP: 00007fe23ae32b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000404043000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe23b016038 R14: 00007fe23b015fa0 R15: 00007ffcd2cf87a8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_mb_normalize_request+0x1cc9/0x1d00 fs/ext4/mballoc.c:4656
Code: 63 a5 ff 48 8b 44 24 38 48 8b 38 48 c7 c6 c0 2f e4 8b 48 c7 c2 40 48 e4 8b 48 8b 4c 24 28 4d 89 f0 49 89 d9 e8 98 65 0a 00 90 <0f> 0b e8 90 af 39 ff 90 0f 0b e8 88 af 39 ff 90 0f 0b e8 80 af 39
RSP: 0018:ffffc9000e146cc0 EFLAGS: 00010246
RAX: fa69f5c5234d9e00 RBX: 0000000001010100 RCX: fa69f5c5234d9e00
RDX: ffffc9000ec6a000 RSI: 00000000000008ff RDI: 0000000000000900
RBP: 0000000000000000 R08: ffffc9000e146907 R09: 1ffff92001c28d20
R10: dffffc0000000000 R11: fffff52001c28d21 R12: ffffffff01010800
R13: dffffc0000000000 R14: 0000000000020000 R15: 0000000000020000
FS:  00007fe23bd1f6c0(0000) GS:ffff88808ca5b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe23bcfdff0 CR3: 0000000044434000 CR4: 0000000000352ef0