==================================================================
BUG: KASAN: use-after-free in ext4_xattr_delete_inode+0xc67/0xc80 fs/ext4/xattr.c:2894
Read of size 4 at addr ffff888111ffe000 by task syz-executor/493

CPU: 1 PID: 493 Comm: syz-executor Not tainted 5.10.222-syzkaller-1003210-gfd58936f3c1f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118
 print_address_description+0x81/0x3b0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0x179/0x1c0 mm/kasan/report.c:452
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:308
 ext4_xattr_delete_inode+0xc67/0xc80 fs/ext4/xattr.c:2894
 ext4_evict_inode+0x1095/0x1730 fs/ext4/inode.c:300
 evict+0x2a3/0x6c0 fs/inode.c:577
 iput_final fs/inode.c:1697 [inline]
 iput+0x632/0x7e0 fs/inode.c:1723
 d_delete_notify include/linux/fsnotify.h:267 [inline]
 vfs_rmdir+0x271/0x3f0 fs/namei.c:3865
 do_rmdir+0x2cf/0x5c0 fs/namei.c:3912
 __do_sys_unlinkat fs/namei.c:4076 [inline]
 __se_sys_unlinkat fs/namei.c:4070 [inline]
 __x64_sys_unlinkat+0xdf/0xf0 fs/namei.c:4070
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f865d0bb707
Code: 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 07 01 00 00 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:00007ffc7ca5fa68 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007f865d0bb707
RDX: 0000000000000200 RSI: 00007ffc7ca60c10 RDI: 00000000ffffff9c
RBP: 00007f865d1186c6 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000207 R12: 00007ffc7ca60c10
R13: 00007f865d1186c6 R14: 000000000000a8da R15: 0000000000000005

Allocated by task 99:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:430 [inline]
 __kasan_slab_alloc+0xb1/0xe0 mm/kasan/common.c:463
 kasan_slab_alloc include/linux/kasan.h:244 [inline]
 slab_post_alloc_hook+0x61/0x2f0 mm/slab.h:583
 slab_alloc_node mm/slub.c:2947 [inline]
 slab_alloc mm/slub.c:2955 [inline]
 kmem_cache_alloc+0x168/0x2e0 mm/slub.c:2960
 kmem_cache_zalloc include/linux/slab.h:654 [inline]
 lsm_file_alloc security/security.c:535 [inline]
 security_file_alloc+0x29/0x120 security/security.c:1444
 __alloc_file+0xbf/0x330 fs/file_table.c:106
 alloc_empty_file+0x95/0x180 fs/file_table.c:151
 path_openat+0x105/0x3000 fs/namei.c:3495
 do_filp_open+0x21c/0x460 fs/namei.c:3536
 do_sys_openat2+0x13f/0x710 fs/open.c:1217
 do_sys_open fs/open.c:1233 [inline]
 __do_sys_openat fs/open.c:1249 [inline]
 __se_sys_openat fs/open.c:1244 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1244
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

The buggy address belongs to the object at ffff888111ffe000
 which belongs to the cache lsm_file_cache of size 16
The buggy address is located 0 bytes inside of
 16-byte region [ffff888111ffe000, ffff888111ffe010)
The buggy address belongs to the page:
page:ffffea000447ff80 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888111ffef00 pfn:0x111ffe
flags: 0x4000000000000200(slab)
raw: 4000000000000200 ffffea00043a43c0 0000000900000009 ffff888100191c80
raw: ffff888111ffef00 000000008080003a 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 110, ts 5193723999, free_ts 0
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook mm/page_alloc.c:2456 [inline]
 prep_new_page+0x166/0x180 mm/page_alloc.c:2462
 get_page_from_freelist+0x2d8c/0x2f30 mm/page_alloc.c:4254
 __alloc_pages_nodemask+0x435/0xaf0 mm/page_alloc.c:5348
 allocate_slab mm/slub.c:1808 [inline]
 new_slab+0x80/0x400 mm/slub.c:1869
 new_slab_objects mm/slub.c:2627 [inline]
 ___slab_alloc+0x302/0x4b0 mm/slub.c:2791
 __slab_alloc+0x63/0xa0 mm/slub.c:2831
 slab_alloc_node mm/slub.c:2913 [inline]
 slab_alloc mm/slub.c:2955 [inline]
 kmem_cache_alloc+0x1b9/0x2e0 mm/slub.c:2960
 kmem_cache_zalloc include/linux/slab.h:654 [inline]
 lsm_file_alloc security/security.c:535 [inline]
 security_file_alloc+0x29/0x120 security/security.c:1444
 __alloc_file+0xbf/0x330 fs/file_table.c:106
 alloc_empty_file+0x95/0x180 fs/file_table.c:151
 path_openat+0x105/0x3000 fs/namei.c:3495
 do_filp_open+0x21c/0x460 fs/namei.c:3536
 do_sys_openat2+0x13f/0x710 fs/open.c:1217
 do_sys_open fs/open.c:1233 [inline]
 __do_sys_openat fs/open.c:1249 [inline]
 __se_sys_openat fs/open.c:1244 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1244
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888111ffdf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888111ffdf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888111ffe000: fb fb fc fc fb fb fc fc fb fb fc fc fb fb fc fc
                   ^
 ffff888111ffe080: fb fb fc fc fa fb fc fc fb fb fc fc fb fb fc fc
 ffff888111ffe100: fa fb fc fc fb fb fc fc fa fb fc fc fa fb fc fc
==================================================================
EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: comm syz-executor: inode #1: comm syz-executor: iget: illegal inode #
EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz-executor: error while reading EA inode 1 err=-117