EXT4-fs warning (device loop2): ext4_update_dynamic_rev:864: updating to rev 1 because of new feature flag, running e2fsck is recommended
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kernel BUG at fs/ext4/ext4.h:2984!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 1644 Comm: syz-executor.2 Not tainted 5.4.268-syzkaller-00003-g2d5d8240a7cb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:2984 [inline]
RIP: 0010:ext4_mb_find_by_goal+0xc10/0xc50 fs/ext4/mballoc.c:1826
Code: fc ff ff 89 d1 80 e1 07 80 c1 03 38 c1 0f 8c 0d fc ff ff 48 89 d7 e8 0f 85 c8 ff 48 8b 54 24 30 e9 fb fb ff ff e8 20 b1 98 ff <0f> 0b e8 49 69 6f ff e8 14 b1 98 ff 0f 0b e8 0d b1 98 ff 0f 0b e8
RSP: 0018:ffff8881e9ee6900 EFLAGS: 00010283
RAX: ffffffff81cb9600 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc90000942000 RSI: 000000000000032b RDI: 000000000000032c
RBP: ffff8881e9ee6a10 R08: ffffffff81cb8b29 R09: ffffed103a0d8155
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff8881ef5b93f0 R14: 1ffff1103d3dcd30 R15: 1ffff1103deb727e
FS:  00007fc4a01356c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33527000 CR3: 00000001d197e000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_mb_regular_allocator+0x229/0x10d0 fs/ext4/mballoc.c:2129
 ext4_mb_new_blocks+0x59a/0x2d10 fs/ext4/mballoc.c:4596
 ext4_alloc_branch fs/ext4/indirect.c:340 [inline]
 ext4_ind_map_blocks+0x124d/0x2e90 fs/ext4/indirect.c:620
 ext4_map_blocks+0x9d6/0x1ba0 fs/ext4/inode.c:663
 _ext4_get_block+0x21b/0x610 fs/ext4/inode.c:802
 ext4_block_write_begin+0x68a/0x1390 fs/ext4/inode.c:1213
 ext4_write_begin+0x5ba/0x1900 fs/ext4/inode.c:1351
 ext4_da_write_begin+0x4a3/0xfe0 fs/ext4/inode.c:3110
 generic_perform_write+0x2c7/0x560 mm/filemap.c:3450
 __generic_file_write_iter+0x224/0x530 mm/filemap.c:3579
 ext4_file_write_iter+0x499/0x10e0 fs/ext4/file.c:270
 call_write_iter include/linux/fs.h:1983 [inline]
 new_sync_write fs/read_write.c:483 [inline]
 __vfs_write+0x5d3/0x750 fs/read_write.c:496
 vfs_write+0x206/0x4e0 fs/read_write.c:558
 ksys_write+0x199/0x2c0 fs/read_write.c:611
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
Modules linked in:
---[ end trace 8570545f72247caf ]---
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:2984 [inline]
RIP: 0010:ext4_mb_find_by_goal+0xc10/0xc50 fs/ext4/mballoc.c:1826
Code: fc ff ff 89 d1 80 e1 07 80 c1 03 38 c1 0f 8c 0d fc ff ff 48 89 d7 e8 0f 85 c8 ff 48 8b 54 24 30 e9 fb fb ff ff e8 20 b1 98 ff <0f> 0b e8 49 69 6f ff e8 14 b1 98 ff 0f 0b e8 0d b1 98 ff 0f 0b e8
RSP: 0018:ffff8881e9ee6900 EFLAGS: 00010283
RAX: ffffffff81cb9600 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc90000942000 RSI: 000000000000032b RDI: 000000000000032c
RBP: ffff8881e9ee6a10 R08: ffffffff81cb8b29 R09: ffffed103a0d8155
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff8881ef5b93f0 R14: 1ffff1103d3dcd30 R15: 1ffff1103deb727e
FS:  00007fc4a01356c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33529000 CR3: 00000001d197e000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400