==================================================================
BUG: KASAN: slab-out-of-bounds in ext4_read_inline_data fs/ext4/inline.c:209 [inline]
BUG: KASAN: slab-out-of-bounds in ext4_inlinedir_to_tree+0x56c/0xf40 fs/ext4/inline.c:1401
Read of size 68 at addr ffff8881234aeec9 by task syz-executor.0/330

CPU: 1 PID: 330 Comm: syz-executor.0 Not tainted 5.10.237-syzkaller-1007464-g7e2543346ff7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x169/0x1d8 lib/dump_stack.c:118
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0xe2/0x130 mm/kasan/report.c:452
 check_region_inline mm/kasan/generic.c:-1 [inline]
 kasan_check_range+0x280/0x290 mm/kasan/generic.c:189
 memcpy+0x2d/0x70 mm/kasan/shadow.c:65
 ext4_read_inline_data fs/ext4/inline.c:209 [inline]
 ext4_inlinedir_to_tree+0x56c/0xf40 fs/ext4/inline.c:1401
 ext4_htree_fill_tree+0x4c5/0x10d0 fs/ext4/namei.c:1186
 ext4_dx_readdir fs/ext4/dir.c:601 [inline]
 ext4_readdir+0x2b45/0x39b0 fs/ext4/dir.c:145
 iterate_dir+0x260/0x570 fs/readdir.c:-1
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64+0xe5/0x240 fs/readdir.c:354
 __x64_sys_getdents64+0x7b/0x90 fs/readdir.c:354
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fd2392ec363
Code: c1 66 0f 1f 44 00 00 48 83 c4 08 48 89 ef 5b 5d e9 62 8b fa ff 66 90 b8 ff ff ff 7f 48 39 c2 48 0f 47 d0 b8 d9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 c7 c2 b0 ff ff ff f7 d8
RSP: 002b:00007ffdc793ede8 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9
RAX: ffffffffffffffda RBX: 0000555590bac890 RCX: 00007fd2392ec363
RDX: 0000000000008000 RSI: 0000555590bac890 RDI: 0000000000000006
RBP: 0000555590bac864 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000293 R12: ffffffffffffffb0
R13: 0000000000000016 R14: 0000555590bac860 R15: 0000000000000008

Allocated by task 94:
 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+0xbd/0xf0 mm/kasan/common.c:463
 kasan_slab_alloc include/linux/kasan.h:244 [inline]
 slab_post_alloc_hook+0x5d/0x2f0 mm/slab.h:583
 slab_alloc_node mm/slub.c:2947 [inline]
 slab_alloc mm/slub.c:2955 [inline]
 kmem_cache_alloc+0x165/0x2e0 mm/slub.c:2960
 kmem_cache_zalloc include/linux/slab.h:654 [inline]
 lsm_inode_alloc security/security.c:556 [inline]
 security_inode_alloc+0x33/0x110 security/security.c:952
 inode_init_always+0x70a/0x9b0 fs/inode.c:204
 alloc_inode fs/inode.c:240 [inline]
 new_inode_pseudo+0x91/0x210 fs/inode.c:968
 new_inode+0x28/0x1e0 fs/inode.c:997
 shmem_get_inode+0x34a/0x9d0 mm/shmem.c:2311
 shmem_mknod+0x5c/0x1c0 mm/shmem.c:2894
 shmem_create+0x2b/0x40 mm/shmem.c:2954
 lookup_open fs/namei.c:3247 [inline]
 open_last_lookups fs/namei.c:3317 [inline]
 path_openat+0x16e3/0x3160 fs/namei.c:3506
 do_filp_open+0x1b3/0x3e0 fs/namei.c:3536
 do_sys_openat2+0x14c/0x6d0 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+0x136/0x160 fs/open.c:1244
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

Last potentially related work creation:
 kasan_save_stack+0x3a/0x60 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xd2/0x100 mm/kasan/generic.c:348
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
 __call_rcu kernel/rcu/tree.c:2976 [inline]
 call_rcu+0x105/0x1040 kernel/rcu/tree.c:3050
 security_inode_free+0xb4/0xd0 security/security.c:984
 __destroy_inode+0x17a/0x520 fs/inode.c:258
 destroy_inode fs/inode.c:281 [inline]
 evict+0x7ab/0x910 fs/inode.c:629
 iput_final fs/inode.c:1736 [inline]
 iput+0x638/0x7c0 fs/inode.c:1762
 do_unlinkat+0x33f/0x670 fs/namei.c:4042
 __do_sys_unlink fs/namei.c:4082 [inline]
 __se_sys_unlink fs/namei.c:4080 [inline]
 __x64_sys_unlink+0x49/0x50 fs/namei.c:4080
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

The buggy address belongs to the object at ffff8881234aeec8
 which belongs to the cache lsm_inode_cache of size 56
The buggy address is located 1 bytes inside of
 56-byte region [ffff8881234aeec8, ffff8881234aef00)
The buggy address belongs to the page:
page:ffffea00048d2b80 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1234ae
flags: 0x4000000000000200(slab)
raw: 4000000000000200 dead000000000100 dead000000000122 ffff888100189500
raw: 0000000000000000 00000000802e002e 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 0x112c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL), pid 352, ts 49387520277, 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+0x179/0x180 mm/page_alloc.c:2462
 get_page_from_freelist+0x2235/0x23d0 mm/page_alloc.c:4254
 __alloc_pages_nodemask+0x268/0x5f0 mm/page_alloc.c:5349
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1808 [inline]
 new_slab+0x84/0x3f0 mm/slub.c:1869
 new_slab_objects mm/slub.c:2627 [inline]
 ___slab_alloc+0x2a6/0x450 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+0x1af/0x2e0 mm/slub.c:2960
 kmem_cache_zalloc include/linux/slab.h:654 [inline]
 lsm_inode_alloc security/security.c:556 [inline]
 security_inode_alloc+0x33/0x110 security/security.c:952
 inode_init_always+0x70a/0x9b0 fs/inode.c:204
 alloc_inode fs/inode.c:240 [inline]
 new_inode_pseudo+0x91/0x210 fs/inode.c:968
 new_inode+0x28/0x1e0 fs/inode.c:997
 shmem_get_inode+0x34a/0x9d0 mm/shmem.c:2311
 shmem_mknod+0x5c/0x1c0 mm/shmem.c:2894
 shmem_create+0x2b/0x40 mm/shmem.c:2954
 lookup_open fs/namei.c:3247 [inline]
 open_last_lookups fs/namei.c:3317 [inline]
 path_openat+0x16e3/0x3160 fs/namei.c:3506
 do_filp_open+0x1b3/0x3e0 fs/namei.c:3536
page_owner free stack trace missing

Memory state around the buggy address:
 ffff8881234aee00: fc fc fc 00 00 00 00 00 00 00 fc fc fc fc fa fb
 ffff8881234aee80: fb fb fb fb fb fc fc fc fc 00 00 00 00 00 00 00
>ffff8881234aef00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fa
                   ^
 ffff8881234aef80: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc
 ffff8881234af000: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
==================================================================
EXT4-fs error (device loop0): ext4_inlinedir_to_tree:1439: inode #12: block 7: comm syz-executor.0: path /root/syzkaller-testdir3371325831/syzkaller.wG6NqW/0/file0/file0: bad entry in directory: directory entry overrun - offset=34816, inode=2538880996, rec_len=34812, size=128 fake=0
EXT4-fs error (device loop0): empty_inline_dir:1850: inode #12: block 7: comm syz-executor.0: bad entry in directory: directory entry overrun - offset=4, inode=2538880996, rec_len=34812, size=60 fake=0
EXT4-fs warning (device loop0): empty_inline_dir:1857: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs error (device loop0): ext4_inlinedir_to_tree:1439: inode #12: block 7: comm syz-executor.0: path /root/syzkaller-testdir3371325831/syzkaller.wG6NqW/0/file0/file0: bad entry in directory: directory entry overrun - offset=34816, inode=2538880996, rec_len=34812, size=128 fake=0
EXT4-fs error (device loop0): empty_inline_dir:1850: inode #12: block 7: comm syz-executor.0: bad entry in directory: directory entry overrun - offset=4, inode=2538880996, rec_len=34812, size=60 fake=0
EXT4-fs warning (device loop0): empty_inline_dir:1857: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs error (device loop0): ext4_inlinedir_to_tree:1439: inode #12: block 7: comm syz-executor.0: path /root/syzkaller-testdir3371325831/syzkaller.wG6NqW/0/file0/file0: bad entry in directory: directory entry overrun - offset=34816, inode=2538880996, rec_len=34812, size=128 fake=0
EXT4-fs error (device loop0): empty_inline_dir:1850: inode #12: block 7: comm syz-executor.0: bad entry in directory: directory entry overrun - offset=4, inode=2538880996, rec_len=34812, size=60 fake=0
EXT4-fs warning (device loop0): empty_inline_dir:1857: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs error (device loop0): ext4_inlinedir_to_tree:1439: inode #12: block 7: comm syz-executor.0: path /root/syzkaller-testdir3371325831/syzkaller.wG6NqW/0/file0/file0: bad entry in directory: directory entry overrun - offset=34816, inode=2538880996, rec_len=34812, size=128 fake=0
EXT4-fs error (device loop0): empty_inline_dir:1850: inode #12: block 7: comm syz-executor.0: bad entry in directory: directory entry overrun - offset=4, inode=2538880996, rec_len=34812, size=60 fake=0
EXT4-fs warning (device loop0): empty_inline_dir:1857: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs error (device loop0): ext4_inlinedir_to_tree:1439: inode #12: block 7: comm syz-executor.0: path /root/syzkaller-testdir3371325831/syzkaller.wG6NqW/0/file0/file0: bad entry in directory: directory entry overrun - offset=34816, inode=2538880996, rec_len=34812, size=128 fake=0
EXT4-fs error (device loop0): empty_inline_dir:1850: inode #12: block 7: comm syz-executor.0: bad entry in directory: directory entry overrun - offset=4, inode=2538880996, rec_len=34812, size=60 fake=0
EXT4-fs warning (device loop0): empty_inline_dir:1857: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs warning (device loop0): empty_inline_dir:1857: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs warning (device loop0): empty_inline_dir:1857: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs warning (device loop0): empty_inline_dir:1857: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs warning (device loop0): empty_inline_dir:1857: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60
EXT4-fs warning (device loop0): empty_inline_dir:1857: bad inline directory (dir #12) - inode 2538880996, rec_len 34812, name_len 234inline size 60