EXT4-fs error (device loop1): ext4_mb_discard_group_preallocations:4861: comm syz-executor.1: Error -117 reading block bitmap for 0
EXT4-fs error (device loop1): ext4_read_block_bitmap_nowait:438: comm syz-executor.1: Invalid block bitmap block 536874944 in block_group 0
EXT4-fs error (device loop1): ext4_mb_discard_group_preallocations:4861: comm syz-executor.1: Error -117 reading block bitmap for 0
------------[ cut here ]------------
kernel BUG at fs/ext4/ext4.h:3331!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 21884 Comm: syz-executor.1 Tainted: G        W          6.1.25-syzkaller-00306-g1464eaee1bba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3331 [inline]
RIP: 0010:ext4_mb_find_by_goal+0xdf4/0xe30 fs/ext4/mballoc.c:2162
Code: c4 ff e9 b5 fb ff ff e8 8a 3b 7f ff 49 bc 00 00 00 00 00 fc ff df e9 6f f7 ff ff e8 76 3b 7f ff e9 51 f7 ff ff e8 6c 3b 7f ff <0f> 0b e8 b5 d8 0f 03 e8 60 3b 7f ff 0f 0b e8 59 3b 7f ff 0f 0b e8
RSP: 0018:ffffc9000131f1c0 EFLAGS: 00010293
RAX: ffffffff81f472e4 RBX: 0000000000000001 RCX: ffff888117b3b900
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc9000131f2d0 R08: ffffffff81f4661b R09: ffffed102c4d4dfc
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11023bd3275
R13: 0000000000000001 R14: 1ffff92000263e48 R15: ffff88811de993a8
FS:  00007f111f33c700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002003f000 CR3: 0000000121439000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_mb_regular_allocator+0x24c/0x3610 fs/ext4/mballoc.c:2614
 ext4_mb_new_blocks+0xfd3/0x48f0 fs/ext4/mballoc.c:5611
 ext4_ext_map_blocks+0x19ca/0x71e0 fs/ext4/extents.c:4287
 ext4_map_blocks+0xa42/0x1ce0 fs/ext4/inode.c:651
 ext4_alloc_file_blocks+0x3d5/0xcd0 fs/ext4/extents.c:4471
 ext4_fallocate+0x942/0x1e90 fs/ext4/extents.c:4758
 vfs_fallocate+0x492/0x570 fs/open.c:324
 ksys_fallocate fs/open.c:347 [inline]
 __do_sys_fallocate fs/open.c:355 [inline]
 __se_sys_fallocate fs/open.c:353 [inline]
 __x64_sys_fallocate+0xc0/0x110 fs/open.c:353
 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: 0033:0x7f111e68c169
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:00007f111f33c168 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f111e7ac050 RCX: 00007f111e68c169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007f111e6e7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000020001 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdc3c8a21f R14: 00007f111f33c300 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_find_by_goal+0xdf4/0xe30 fs/ext4/mballoc.c:2162
Code: c4 ff e9 b5 fb ff ff e8 8a 3b 7f ff 49 bc 00 00 00 00 00 fc ff df e9 6f f7 ff ff e8 76 3b 7f ff e9 51 f7 ff ff e8 6c 3b 7f ff <0f> 0b e8 b5 d8 0f 03 e8 60 3b 7f ff 0f 0b e8 59 3b 7f ff 0f 0b e8
RSP: 0018:ffffc9000131f1c0 EFLAGS: 00010293
RAX: ffffffff81f472e4 RBX: 0000000000000001 RCX: ffff888117b3b900
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc9000131f2d0 R08: ffffffff81f4661b R09: ffffed102c4d4dfc
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11023bd3275
R13: 0000000000000001 R14: 1ffff92000263e48 R15: ffff88811de993a8
FS:  00007f111f33c700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002003f000 CR3: 0000000121439000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400