EXT4-fs error (device loop0): ext4_read_block_bitmap_nowait:476: comm syz-executor.0: Invalid block bitmap block 0 in block_group 0
EXT4-fs (loop0): Remounting filesystem read-only
EXT4-fs error (device loop0) in ext4_mb_clear_bb:6151: Corrupt filesystem
==================================================================
BUG: KASAN: out-of-bounds in ext4_ext_rm_leaf fs/ext4/extents.c:2735 [inline]
BUG: KASAN: out-of-bounds in ext4_ext_remove_space+0x2149/0x4a60 fs/ext4/extents.c:2957
Read of size 18446744073709551544 at addr ffff888123304054 by task syz-executor.0/442

CPU: 1 PID: 442 Comm: syz-executor.0 Not tainted 5.15.127-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
 print_address_description+0x87/0x3a0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0x177/0x1c0 mm/kasan/report.c:451
 kasan_check_range+0x293/0x2a0 mm/kasan/generic.c:189
 memmove+0x2d/0x70 mm/kasan/shadow.c:54
 ext4_ext_rm_leaf fs/ext4/extents.c:2735 [inline]
 ext4_ext_remove_space+0x2149/0x4a60 fs/ext4/extents.c:2957
 ext4_punch_hole+0x794/0xbf0 fs/ext4/inode.c:4088
 ext4_fallocate+0x30c/0x1f10 fs/ext4/extents.c:4711
 vfs_fallocate+0x492/0x570 fs/open.c:308
 do_vfs_ioctl+0x2238/0x2a80 fs/ioctl.c:853
 __do_sys_ioctl fs/ioctl.c:872 [inline]
 __se_sys_ioctl+0x99/0x190 fs/ioctl.c:860
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860
 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: 0033:0x7f15bfb21ae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f15b72c30c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f15bfc41050 RCX: 00007f15bfb21ae9
RDX: 0000000020000080 RSI: 000000004030582b RDI: 0000000000000004
RBP: 00007f15bfb6d47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f15bfc41050 R15: 00007ffcf5a884f8
 </TASK>

The buggy address belongs to the page:
page:ffffea00048cc100 refcount:2 mapcount:0 mapping:ffff888108fe52f8 index:0x3a pfn:0x123304
memcg:ffff88811f6dc000
aops:def_blk_aops ino:700000
flags: 0x4000000000002036(referenced|uptodate|lru|active|private|zone=1)
raw: 4000000000002036 ffffea00048c5288 ffffea00048c5208 ffff888108fe52f8
raw: 000000000000003a ffff8881224bfbd0 00000002ffffffff ffff88811f6dc000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Movable, gfp_mask 0x108c48(GFP_NOFS|__GFP_NOFAIL|__GFP_HARDWALL|__GFP_MOVABLE), pid 439, ts 41510067660, free_ts 0
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x15d/0x170 mm/page_alloc.c:2420
 prep_new_page mm/page_alloc.c:2426 [inline]
 get_page_from_freelist+0x33e6/0x34c0 mm/page_alloc.c:4159
 __alloc_pages+0x38a/0x7b0 mm/page_alloc.c:5421
 __alloc_pages_node include/linux/gfp.h:570 [inline]
 alloc_pages_node include/linux/gfp.h:584 [inline]
 alloc_pages include/linux/gfp.h:597 [inline]
 __page_cache_alloc include/linux/pagemap.h:304 [inline]
 pagecache_get_page+0xa5b/0xdf0 mm/filemap.c:1940
 find_or_create_page include/linux/pagemap.h:420 [inline]
 grow_dev_page fs/buffer.c:949 [inline]
 grow_buffers fs/buffer.c:1014 [inline]
 __getblk_slow fs/buffer.c:1041 [inline]
 __getblk_gfp+0x21e/0x7c0 fs/buffer.c:1336
 sb_getblk_gfp include/linux/buffer_head.h:368 [inline]
 ext4_ext_grow_indepth fs/ext4/extents.c:1328 [inline]
 ext4_ext_create_new_leaf fs/ext4/extents.c:1429 [inline]
 ext4_ext_insert_extent+0xf7a/0x4b10 fs/ext4/extents.c:2099
 ext4_ext_map_blocks+0x1c61/0x7250 fs/ext4/extents.c:4308
 ext4_map_blocks+0xaa7/0x1e00 fs/ext4/inode.c:645
 _ext4_get_block+0x23b/0x660 fs/ext4/inode.c:792
 ext4_get_block+0x39/0x50 fs/ext4/inode.c:809
 ext4_block_write_begin+0x5ea/0x12a0 fs/ext4/inode.c:1077
 ext4_write_begin+0x613/0x1040
 ext4_da_write_begin+0x342/0x940 fs/ext4/inode.c:2963
 generic_perform_write+0x2bc/0x5a0 mm/filemap.c:3776
 ext4_buffered_write_iter+0x485/0x610 fs/ext4/file.c:268
 ext4_file_write_iter+0x193/0x1db0 fs/ext4/file.c:683
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888123303f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888123303f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff888123304000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                                 ^
 ffff888123304080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888123304100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
EXT4-fs error (device loop0): __ext4_get_inode_loc:4309: comm syz-executor.0: Invalid inode table block 0 in block_group 0
EXT4-fs error (device loop0) in ext4_reserve_inode_write:5789: Corrupt filesystem
EXT4-fs error (device loop0): ext4_punch_hole:4101: inode #16: comm syz-executor.0: mark_inode_dirty error