EXT4-fs error (device loop2): ext4_ind_map_blocks:604: inode #19: comm syz-executor.2: Can't allocate blocks for non-extent mapped inodes with bigalloc
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kernel BUG at fs/ext4/ext4.h:3331!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 17439 Comm: syz-executor.2 Not tainted 6.1.25-syzkaller-00110-gd28f02c47b77 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3331 [inline]
RIP: 0010:ext4_mb_load_buddy_gfp+0xef8/0xf10 fs/ext4/mballoc.c:1448
Code: ae 4d c6 ff e9 de f3 ff ff e8 d4 64 80 ff 48 c7 c7 20 af 8b 86 4c 89 ee 48 89 da e8 d2 3e a7 00 e9 50 f2 ff ff e8 b8 64 80 ff <0f> 0b e8 b1 64 80 ff 0f 0b e8 aa 64 80 ff 0f 0b 0f 1f 84 00 00 00
RSP: 0000:ffffc90000c474a8 EFLAGS: 00010287
RAX: ffffffff81f35ef8 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc90002fc3000 RSI: 0000000000011e40 RDI: 0000000000011e41
RBP: ffffc90000c47530 R08: ffffffff81f350ec R09: ffffed102bac7642
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000fffdbe5b
R13: ffff8881612e4000 R14: ffff888114b8c3c8 R15: ffff888114b8c018
FS:  00007fc6703cf700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020404030 CR3: 000000011376b000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000004000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_discard_preallocations+0x79c/0xef0 fs/ext4/mballoc.c:5021
 ext4_truncate+0x8e4/0xfb0 fs/ext4/inode.c:4271
 ext4_truncate_failed_write fs/ext4/truncate.h:22 [inline]
 ext4_write_begin+0xa76/0xfb0 fs/ext4/inode.c:1263
 generic_perform_write+0x2f9/0x5c0 mm/filemap.c:3765
 ext4_buffered_write_iter+0x360/0x640 fs/ext4/file.c:285
 ext4_file_write_iter+0x194/0x1cf0
 call_write_iter include/linux/fs.h:2215 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x8d1/0xe80 fs/read_write.c:584
 ksys_write+0x199/0x2c0 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:646
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc66f68c389
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:00007fc6703cf168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fc66f7abf80 RCX: 00007fc66f68c389
RDX: 000000000208e24b RSI: 00000000200001c0 RDI: 0000000000000006
RBP: 00007fc66f6d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffbe8a245f R14: 00007fc6703cf300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3331 [inline]
RIP: 0010:ext4_mb_load_buddy_gfp+0xef8/0xf10 fs/ext4/mballoc.c:1448
Code: ae 4d c6 ff e9 de f3 ff ff e8 d4 64 80 ff 48 c7 c7 20 af 8b 86 4c 89 ee 48 89 da e8 d2 3e a7 00 e9 50 f2 ff ff e8 b8 64 80 ff <0f> 0b e8 b1 64 80 ff 0f 0b e8 aa 64 80 ff 0f 0b 0f 1f 84 00 00 00
RSP: 0000:ffffc90000c474a8 EFLAGS: 00010287
RAX: ffffffff81f35ef8 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc90002fc3000 RSI: 0000000000011e40 RDI: 0000000000011e41
RBP: ffffc90000c47530 R08: ffffffff81f350ec R09: ffffed102bac7642
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000fffdbe5b
R13: ffff8881612e4000 R14: ffff888114b8c3c8 R15: ffff888114b8c018
FS:  00007fc6703cf700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffbdf184718 CR3: 000000011376b000 CR4: 00000000003526a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000004000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400