EXT4-fs error (device loop3): ext4_discard_preallocations:5033: comm syz-executor.3: Error -12 reading block bitmap for 0
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kernel BUG at fs/ext4/ext4.h:3332!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 21649 Comm: syz-executor.3 Not tainted 6.3.0-syzkaller #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:3332
Code: 4f ff 8b 74 24 04 48 c7 c7 a0 ac 0b 8d 4c 89 f2 e8 fc 05 2e 02 43 80 3c 2c 00 0f 85 23 fd ff ff e9 26 fd ff ff e8 67 27 4f 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:ffffc90015987200 EFLAGS: 00010293
RAX: ffffffff823b5229 RBX: 00000000000608cc RCX: ffff8880208f1d40
RDX: 0000000000000000 RSI: 00000000000608cc RDI: 0000000000000001
RBP: 0000000000000001 R08: ffffffff823b4ef9 R09: ffffc900159873a0
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11006fa3ccf
R13: dffffc0000000000 R14: ffff88802bf18000 R15: ffff888037d1e678
FS:  00007f2bf86ce700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78b1588218 CR3: 00000000283e2000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_mb_clear_bb fs/ext4/mballoc.c:5913 [inline]
 ext4_free_blocks+0xc31/0x2dd0 fs/ext4/mballoc.c:6173
 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:4344
 ext4_truncate_failed_write fs/ext4/truncate.h:22 [inline]
 ext4_write_begin+0xaa6/0xee0 fs/ext4/inode.c:1262
 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:1851 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x7b2/0xbb0 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: 0033:0x7f2bf788c169
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:00007f2bf86ce168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f2bf79abf80 RCX: 00007f2bf788c169
RDX: 000000000208e24b RSI: 0000000020000300 RDI: 0000000000000006
RBP: 00007f2bf78e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd59fded4f R14: 00007f2bf86ce300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_get_group_info+0x399/0x3a0 fs/ext4/ext4.h:3332
Code: 4f ff 8b 74 24 04 48 c7 c7 a0 ac 0b 8d 4c 89 f2 e8 fc 05 2e 02 43 80 3c 2c 00 0f 85 23 fd ff ff e9 26 fd ff ff e8 67 27 4f 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:ffffc90015987200 EFLAGS: 00010293

RAX: ffffffff823b5229 RBX: 00000000000608cc RCX: ffff8880208f1d40
RDX: 0000000000000000 RSI: 00000000000608cc RDI: 0000000000000001
RBP: 0000000000000001 R08: ffffffff823b4ef9 R09: ffffc900159873a0
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11006fa3ccf
R13: dffffc0000000000 R14: ffff88802bf18000 R15: ffff888037d1e678
FS:  00007f2bf86ce700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f103103f000 CR3: 00000000283e2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400