syzbot

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kernel BUG at fs/ext4/ext4.h:3355!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 639 Comm: syz-executor362 Not tainted 5.15.106-syzkaller-00249-g19c0ed55a470 #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:3355 [inline]
RIP: 0010:ext4_mb_find_by_goal+0xdf4/0xe30 fs/ext4/mballoc.c:2206
Code: c6 ff e9 b5 fb ff ff e8 6a 0a 85 ff 49 bc 00 00 00 00 00 fc ff df e9 6f f7 ff ff e8 56 0a 85 ff e9 51 f7 ff ff e8 4c 0a 85 ff <0f> 0b e8 55 03 d0 02 e8 40 0a 85 ff 0f 0b e8 39 0a 85 ff 0f 0b e8
RSP: 0018:ffffc900013a7180 EFLAGS: 00010293
RAX: ffffffff81eae174 RBX: 0000000000000001 RCX: ffff888118cb2780
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc900013a7290 R08: ffffffff81ead4ab R09: ffffed102410398a
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11022c81879
R13: 0000000000000001 R14: 1ffff92000274e40 R15: ffff88811640c3c8
FS:  00007f600e02f700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f600e0d4958 CR3: 000000010cacf000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_mb_regular_allocator+0x247/0x3810 fs/ext4/mballoc.c:2658
 ext4_mb_new_blocks+0xe3c/0x43f0 fs/ext4/mballoc.c:5623
 ext4_ext_map_blocks+0x1a0d/0x7250 fs/ext4/extents.c:4287
 ext4_map_blocks+0xaa7/0x1e30 fs/ext4/inode.c:646
 ext4_alloc_file_blocks+0x3d5/0xcd0 fs/ext4/extents.c:4474
 ext4_fallocate+0xbe7/0x1f90 fs/ext4/extents.c:4763
 vfs_fallocate+0x492/0x570 fs/open.c:309
 ksys_fallocate fs/open.c:332 [inline]
 __do_sys_fallocate fs/open.c:340 [inline]
 __se_sys_fallocate fs/open.c:338 [inline]
 __x64_sys_fallocate+0xc0/0x110 fs/open.c:338
 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+0x61/0xcb
RIP: 0033:0x7f600e0837e9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 15 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:00007f600e02f2f8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f600e1097a0 RCX: 00007f600e0837e9
RDX: 0000000000008947 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f600e0d657c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000246 R12: 00007f600e0d5578
R13: 0031656c69662f2e R14: 6f6f6c2f7665642f R15: 00007f600e1097a8
 </TASK>
Modules linked in:
---[ end trace 0da7a39c4d7bdfca ]---
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3355 [inline]
RIP: 0010:ext4_mb_find_by_goal+0xdf4/0xe30 fs/ext4/mballoc.c:2206
Code: c6 ff e9 b5 fb ff ff e8 6a 0a 85 ff 49 bc 00 00 00 00 00 fc ff df e9 6f f7 ff ff e8 56 0a 85 ff e9 51 f7 ff ff e8 4c 0a 85 ff <0f> 0b e8 55 03 d0 02 e8 40 0a 85 ff 0f 0b e8 39 0a 85 ff 0f 0b e8
RSP: 0018:ffffc900013a7180 EFLAGS: 00010293
RAX: ffffffff81eae174 RBX: 0000000000000001 RCX: ffff888118cb2780
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc900013a7290 R08: ffffffff81ead4ab R09: ffffed102410398a
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11022c81879
R13: 0000000000000001 R14: 1ffff92000274e40 R15: ffff88811640c3c8
FS:  00007f600e02f700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555572872b8 CR3: 000000010cacf000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400