EXT4-fs error (device loop0): ext4_discard_preallocations:5238: comm syz-executor.0: Error -12 reading block bitmap for 0
------------[ cut here ]------------
kernel BUG at fs/ext4/ext4.h:3241!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 28998 Comm: syz-executor.0 Not tainted 6.3.0-syzkaller-07919-g6e98b09da931 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:ext4_get_group_info+0x399/0x3a0 fs/ext4/ext4.h:3241
Code: 4e ff 8b 74 24 04 48 c7 c7 80 ca 0b 8d 4c 89 f2 e8 4c 82 2d 02 43 80 3c 2c 00 0f 85 23 fd ff ff e9 26 fd ff ff e8 97 68 4e ff <0f> 0b 0f 1f 44 00 00 55 41 57 41 56 41 54 53 48 89 fb 49 bf 00 00
RSP: 0018:ffffc900071cf200 EFLAGS: 00010293
RAX: ffffffff823ca1a9 RBX: 0000000000016c52 RCX: ffff8880231d1dc0
RDX: 0000000000000000 RSI: 0000000000016c52 RDI: 0000000000000001
RBP: 0000000000000001 R08: ffffffff823c9e79 R09: 0000000000000000
R10: ffffc900071cf3a0 R11: dffffc0000000001 R12: 1ffff11006ae70cf
R13: dffffc0000000000 R14: ffff88802af10000 R15: ffff888035738678
FS:  00007f4ae6336700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4b507fe000 CR3: 00000000458de000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_mb_clear_bb fs/ext4/mballoc.c:6092 [inline]
 ext4_free_blocks+0xc42/0x2d60 fs/ext4/mballoc.c:6352
 ext4_clear_blocks+0x334/0x3a0 fs/ext4/indirect.c:887
 ext4_free_data+0x160/0x390 fs/ext4/indirect.c:948
 ext4_ind_truncate+0x6af/0xd60 fs/ext4/indirect.c:1180
 ext4_truncate+0x9df/0x1150 fs/ext4/inode.c:4150
 ext4_truncate_failed_write fs/ext4/truncate.h:22 [inline]
 ext4_write_begin+0xa14/0x10a0 fs/ext4/inode.c:1231
 generic_perform_write+0x300/0x5e0 mm/filemap.c:3926
 ext4_buffered_write_iter+0x122/0x3a0 fs/ext4/file.c:289
 ext4_file_write_iter+0x1d6/0x1930
 call_write_iter include/linux/fs.h:1854 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x7da/0xbf0 fs/read_write.c:584
 ksys_write+0x1a0/0x2c0 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4ae568c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4ae6336168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f4ae57abf80 RCX: 00007f4ae568c169
RDX: 000000000208e24b RSI: 0000000020000300 RDI: 0000000000000006
RBP: 00007f4ae56e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe00a488ef R14: 00007f4ae6336300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_get_group_info+0x399/0x3a0 fs/ext4/ext4.h:3241
Code: 4e ff 8b 74 24 04 48 c7 c7 80 ca 0b 8d 4c 89 f2 e8 4c 82 2d 02 43 80 3c 2c 00 0f 85 23 fd ff ff e9 26 fd ff ff e8 97 68 4e ff <0f> 0b 0f 1f 44 00 00 55 41 57 41 56 41 54 53 48 89 fb 49 bf 00 00
RSP: 0018:ffffc900071cf200 EFLAGS: 00010293

RAX: ffffffff823ca1a9 RBX: 0000000000016c52 RCX: ffff8880231d1dc0
RDX: 0000000000000000 RSI: 0000000000016c52 RDI: 0000000000000001
RBP: 0000000000000001 R08: ffffffff823c9e79 R09: 0000000000000000
R10: ffffc900071cf3a0 R11: dffffc0000000001 R12: 1ffff11006ae70cf
R13: dffffc0000000000 R14: ffff88802af10000 R15: ffff888035738678
FS:  00007f4ae6336700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff15c94d718 CR3: 00000000458de000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400