loop1: detected capacity change from 0 to 4096
==================================================================
BUG: KASAN: slab-out-of-bounds in __ext4_iget+0x254/0x31ac fs/ext4/inode.c:4652
Read of size 8 at addr ffff0000e778ff40 by task syz.1.4821/14561

CPU: 0 PID: 14561 Comm: syz.1.4821 Not tainted 5.15.169-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 print_address_description+0x7c/0x3f0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0x174/0x1e4 mm/kasan/report.c:451
 __asan_report_load8_noabort+0x44/0x50 mm/kasan/report_generic.c:309
 __ext4_iget+0x254/0x31ac fs/ext4/inode.c:4652
 ext4_fill_super+0x690c/0x8768 fs/ext4/super.c:4841
 mount_bdev+0x274/0x370 fs/super.c:1400
 ext4_mount+0x44/0x58 fs/ext4/super.c:6603
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
 vfs_get_tree+0x90/0x274 fs/super.c:1530
 do_new_mount+0x278/0x8fc fs/namespace.c:3012
 path_mount+0x594/0x101c fs/namespace.c:3342
 do_mount fs/namespace.c:3355 [inline]
 __do_sys_mount fs/namespace.c:3563 [inline]
 __se_sys_mount fs/namespace.c:3540 [inline]
 __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3540
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Allocated by task 0:
(stack is not available)

The buggy address belongs to the object at ffff0000e778f860
 which belongs to the cache romfs_i of size 1184
The buggy address is located 576 bytes to the right of
 1184-byte region [ffff0000e778f860, ffff0000e778fd00)
The buggy address belongs to the page:
page:0000000010294f49 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff0000e778c000 pfn:0x12778c
head:0000000010294f49 order:2 compound_mapcount:0 compound_pincount:0
memcg:ffff0000df5fd601
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 0000000000000000 dead000000000122 ffff0000c6600000
raw: ffff0000e778c000 00000000800c000b 00000001ffffffff ffff0000df5fd601
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000e778fe00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000e778fe80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff0000e778ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                           ^
 ffff0000e778ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000e7790000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
EXT4-fs (loop1): corrupt root inode, run e2fsck
EXT4-fs (loop1): mount failed