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BUG: KMSAN: uninit-value in kernfs_dop_revalidate+0x668/0x850 fs/kernfs/dir.c:1144
 kernfs_dop_revalidate+0x668/0x850 fs/kernfs/dir.c:1144
 d_revalidate fs/namei.c:927 [inline]
 lookup_dcache fs/namei.c:1655 [inline]
 lookup_one_qstr_excl+0x320/0x530 fs/namei.c:1677
 filename_create+0x2fc/0x6e0 fs/namei.c:4081
 do_mkdirat+0x69/0x820 fs/namei.c:4326
 __do_sys_mkdir fs/namei.c:4354 [inline]
 __se_sys_mkdir fs/namei.c:4352 [inline]
 __ia32_sys_mkdir+0x9f/0xe0 fs/namei.c:4352
 ia32_sys_call+0x1f39/0x4180 arch/x86/include/generated/asm/syscalls_32.h:40
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4125 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_lru_noprof+0x91c/0xe20 mm/slub.c:4187
 __d_alloc+0x69/0x9e0 fs/dcache.c:1646
 d_alloc_anon fs/dcache.c:1743 [inline]
 __d_obtain_alias+0x184/0xeb0 fs/dcache.c:1967
 d_obtain_alias+0x33/0x40 fs/dcache.c:2024
 __kernfs_fh_to_dentry+0x284/0x360 fs/kernfs/mount.c:128
 kernfs_fh_to_parent+0x4c/0x60 fs/kernfs/mount.c:142
 exportfs_decode_fh_raw+0x576/0xed0 fs/exportfs/expfs.c:523
 do_handle_to_path+0xed/0x2f0 fs/fhandle.c:257
 handle_to_path fs/fhandle.c:385 [inline]
 do_handle_open+0xdde/0x1130 fs/fhandle.c:403
 __do_compat_sys_open_by_handle_at fs/fhandle.c:455 [inline]
 __se_compat_sys_open_by_handle_at fs/fhandle.c:452 [inline]
 __ia32_compat_sys_open_by_handle_at+0x90/0xd0 fs/fhandle.c:452
 ia32_sys_call+0x2f0c/0x4180 arch/x86/include/generated/asm/syscalls_32.h:343
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

CPU: 0 UID: 0 PID: 10384 Comm: syz.0.1926 Not tainted 6.13.0-syzkaller-07078-gb46c89c08f41 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
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