EXT4-fs error (device loop0): ext4_do_update_inode:5801: inode #19: comm syz.0.0: corrupted inode contents
EXT4-fs error (device loop0): ext4_dirty_inode:6731: inode #19: comm syz.0.0: mark_inode_dirty error
------------[ cut here ]------------
kernel BUG at fs/ext4/mballoc.c:4781!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5318 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_use_inode_pa+0x6bf/0x720 fs/ext4/mballoc.c:4781
Code: e8 c6 f4 a1 ff 48 ba 00 00 00 00 00 fc ff df e9 d7 fa ff ff e8 72 56 30 ff 90 0f 0b e8 6a 56 30 ff 90 0f 0b e8 62 56 30 ff 90 <0f> 0b e8 5a 56 30 ff 90 0f 0b 48 8b 0c 24 48 83 c1 54 80 e1 07 80
RSP: 0018:ffffc9000f24eda0 EFLAGS: 00010287
RAX: ffffffff82977ffe RBX: 00000000ffffffec RCX: 0000000000100000
RDX: ffffc90020001000 RSI: 000000000000105f RDI: 0000000000001060
RBP: 1ffff11008850329 R08: ffff888044285efb R09: 1ffff11008850bdf
R10: dffffc0000000000 R11: ffffed1008850be0 R12: 0000000000000000
R13: 0000000000000034 R14: 1ffff11008850be2 R15: ffff888044285f10
FS:  00007f96ec8d26c0(0000) GS:ffff88808c2ca000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe47bd68b50 CR3: 000000000e984000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ext4_mb_use_preallocated+0x638/0x13e0 fs/ext4/mballoc.c:4998
 ext4_mb_new_blocks+0x5a0/0x4530 fs/ext4/mballoc.c:6302
 ext4_alloc_branch fs/ext4/indirect.c:340 [inline]
 ext4_ind_map_blocks+0xe96/0x22a0 fs/ext4/indirect.c:635
 ext4_map_create_blocks+0xbb/0x530 fs/ext4/inode.c:632
 ext4_map_blocks+0x791/0x12c0 fs/ext4/inode.c:823
 mpage_map_one_extent fs/ext4/inode.c:2379 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2469 [inline]
 ext4_do_writepages+0x1901/0x4770 fs/ext4/inode.c:2938
 ext4_writepages+0x241/0x3b0 fs/ext4/inode.c:3032
 do_writepages+0x338/0x560 mm/page-writeback.c:2560
 filemap_writeback mm/filemap.c:387 [inline]
 filemap_flush_range mm/filemap.c:436 [inline]
 filemap_flush+0x1e1/0x2e0 mm/filemap.c:451
 ext4_release_file+0x82/0x310 fs/ext4/file.c:171
 __fput+0x418/0xa50 fs/file_table.c:512
 fput_close_sync+0x11f/0x240 fs/file_table.c:617
 __do_sys_close fs/open.c:1560 [inline]
 __se_sys_close fs/open.c:1545 [inline]
 __x64_sys_close+0x7e/0x110 fs/open.c:1545
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f96eb99e159
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:00007f96ec8d1fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007f96ebc26090 RCX: 00007f96eb99e159
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f96eba3503b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f96ebc26128 R14: 00007f96ebc26090 R15: 00007fff319d02f8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_mb_use_inode_pa+0x6bf/0x720 fs/ext4/mballoc.c:4781
Code: e8 c6 f4 a1 ff 48 ba 00 00 00 00 00 fc ff df e9 d7 fa ff ff e8 72 56 30 ff 90 0f 0b e8 6a 56 30 ff 90 0f 0b e8 62 56 30 ff 90 <0f> 0b e8 5a 56 30 ff 90 0f 0b 48 8b 0c 24 48 83 c1 54 80 e1 07 80
RSP: 0018:ffffc9000f24eda0 EFLAGS: 00010287
RAX: ffffffff82977ffe RBX: 00000000ffffffec RCX: 0000000000100000
RDX: ffffc90020001000 RSI: 000000000000105f RDI: 0000000000001060
RBP: 1ffff11008850329 R08: ffff888044285efb R09: 1ffff11008850bdf
R10: dffffc0000000000 R11: ffffed1008850be0 R12: 0000000000000000
R13: 0000000000000034 R14: 1ffff11008850be2 R15: ffff888044285f10
FS:  00007f96ec8d26c0(0000) GS:ffff88808c2ca000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe47bd68b50 CR3: 000000000e984000 CR4: 0000000000352ef0