==================================================================
BUG: KASAN: use-after-free in check_igot_inode fs/ext4/inode.c:-1 [inline]
BUG: KASAN: use-after-free in __ext4_iget+0x2b8/0x3d80 fs/ext4/inode.c:4704
Read of size 8 at addr ffff88813216fef8 by task syz.3.7285/27415

CPU: 1 PID: 27415 Comm: syz.3.7285 Not tainted 5.15.189-syzkaller-android13-5.15.189_r00 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:88
 dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:427 [inline]
 kasan_report+0xf1/0x140 mm/kasan/report.c:444
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
 check_igot_inode fs/ext4/inode.c:-1 [inline]
 __ext4_iget+0x2b8/0x3d80 fs/ext4/inode.c:4704
 ext4_quota_enable fs/ext4/super.c:6406 [inline]
 ext4_enable_quotas+0x33b/0x6d0 fs/ext4/super.c:6442
 ext4_fill_super+0x8761/0x9030 fs/ext4/super.c:4949
 mount_bdev+0x2ae/0x3e0 fs/super.c:1400
 ext4_mount+0x34/0x40 fs/ext4/super.c:6621
 legacy_get_tree+0xed/0x190 fs/fs_context.c:611
 vfs_get_tree+0x89/0x260 fs/super.c:1530
 do_new_mount+0x25a/0xa20 fs/namespace.c:3014
 path_mount+0x675/0x1020 fs/namespace.c:3344
 do_mount fs/namespace.c:3357 [inline]
 __do_sys_mount fs/namespace.c:3565 [inline]
 __se_sys_mount+0x318/0x380 fs/namespace.c:3542
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3542
 x64_sys_call+0x6bf/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f96c4caf38a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f96c36d3e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f96c36d3ef0 RCX: 00007f96c4caf38a
RDX: 00002000000000c0 RSI: 0000200000000640 RDI: 00007f96c36d3eb0
RBP: 00002000000000c0 R08: 00007f96c36d3ef0 R09: 0000000003000010
R10: 0000000003000010 R11: 0000000000000246 R12: 0000200000000640
R13: 00007f96c36d3eb0 R14: 000000000000051b R15: 0000200000000000
 </TASK>

The buggy address belongs to the page:
page:ffffea0004c85bc0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x13216f
flags: 0x4000000000000000(zone=1)
raw: 4000000000000000 0000000000000000 ffffea0004c85bc8 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 2, migratetype Reclaimable, gfp_mask 0x152810(GFP_NOWAIT|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 4604, ts 485954899047, free_ts 1059758932040
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x192/0x1b0 mm/page_alloc.c:2605
 prep_new_page+0x1c/0x110 mm/page_alloc.c:2611
 get_page_from_freelist+0x2cc5/0x2d50 mm/page_alloc.c:4485
 __alloc_pages+0x18f/0x440 mm/page_alloc.c:5795
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1932 [inline]
 new_slab+0xa1/0x4d0 mm/slub.c:1995
 ___slab_alloc+0x381/0x810 mm/slub.c:3028
 __slab_alloc+0x49/0x90 mm/slub.c:3115
 slab_alloc_node mm/slub.c:3206 [inline]
 slab_alloc mm/slub.c:3250 [inline]
 kmem_cache_alloc+0x138/0x260 mm/slub.c:3255
 xas_alloc lib/xarray.c:374 [inline]
 xas_create+0xef8/0x1580 lib/xarray.c:676
 xas_create_range+0x211/0x720 lib/xarray.c:716
 shmem_add_to_page_cache+0x739/0xc30 mm/shmem.c:740
 shmem_getpage_gfp+0x1164/0x2310 mm/shmem.c:1946
 shmem_getpage mm/shmem.c:156 [inline]
 shmem_write_begin+0xce/0x1b0 mm/shmem.c:2480
 generic_perform_write+0x2ad/0x670 mm/filemap.c:3869
 __generic_file_write_iter+0x268/0x480 mm/filemap.c:3997
 generic_file_write_iter+0xa9/0x1d0 mm/filemap.c:4029
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1472 [inline]
 free_pcp_prepare mm/page_alloc.c:1544 [inline]
 free_unref_page_prepare+0x542/0x550 mm/page_alloc.c:3534
 free_unref_page+0xa2/0x550 mm/page_alloc.c:3616
 free_the_page mm/page_alloc.c:805 [inline]
 __free_pages+0x6c/0x100 mm/page_alloc.c:5871
 __free_slab+0xe8/0x1e0 mm/slub.c:2020
 free_slab mm/slub.c:2035 [inline]
 discard_slab+0x29/0x40 mm/slub.c:2041
 __slab_free+0x211/0x290 mm/slub.c:3426
 do_slab_free mm/slub.c:3509 [inline]
 ___cache_free+0x104/0x120 mm/slub.c:3530
 qlink_free+0x4d/0x90 mm/kasan/quarantine.c:157
 qlist_free_all+0x5f/0xb0 mm/kasan/quarantine.c:176
 kasan_quarantine_reduce+0x14a/0x170 mm/kasan/quarantine.c:283
 __kasan_slab_alloc+0x2f/0xf0 mm/kasan/common.c:443
 kasan_slab_alloc include/linux/kasan.h:217 [inline]
 slab_post_alloc_hook+0x4f/0x2b0 mm/slab.h:550
 slab_alloc_node mm/slub.c:3240 [inline]
 slab_alloc mm/slub.c:3250 [inline]
 kmem_cache_alloc_trace+0xfb/0x270 mm/slub.c:3267
 kmalloc include/linux/slab.h:616 [inline]
 usb_control_msg+0x74/0x3f0 drivers/usb/core/message.c:143
 get_port_status drivers/usb/core/hub.c:591 [inline]
 hub_ext_port_status+0x100/0x6b0 drivers/usb/core/hub.c:608
 hub_port_status drivers/usb/core/hub.c:630 [inline]
 hub_port_debounce+0x1c7/0x250 drivers/usb/core/hub.c:4655

Memory state around the buggy address:
 ffff88813216fd80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88813216fe00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff88813216fe80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                                                ^
 ffff88813216ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88813216ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
EXT4-fs warning (device loop3): ext4_enable_quotas:6450: Failed to enable quota tracking (type=0, err=-13, ino=3). Please run e2fsck to fix.
EXT4-fs (loop3): mount failed