=====================================================
BUG: KMSAN: uninit-value in fuse_dentry_revalidate+0x150/0x13d0 fs/fuse/dir.c:394
 fuse_dentry_revalidate+0x150/0x13d0 fs/fuse/dir.c:394
 d_revalidate fs/namei.c:1030 [inline]
 __lookup_slow+0x2ea/0x770 fs/namei.c:1905
 lookup_slow+0x6a/0xd0 fs/namei.c:1933
 walk_component fs/namei.c:2279 [inline]
 link_path_walk+0x170f/0x2650 fs/namei.c:2647
 path_lookupat+0x107/0xdf0 fs/namei.c:2803
 do_o_path+0x58/0x290 fs/namei.c:4801
 path_openat+0x493e/0x64c0 fs/namei.c:4823
 do_file_open+0x2aa/0x680 fs/namei.c:4859
 do_sys_openat2+0x163/0x380 fs/open.c:1366
 do_sys_open fs/open.c:1372 [inline]
 __do_compat_sys_openat fs/open.c:1434 [inline]
 __se_compat_sys_openat fs/open.c:1432 [inline]
 __ia32_compat_sys_openat+0x238/0x300 fs/open.c:1432
 ia32_sys_call+0x330b/0x4360 arch/x86/include/generated/asm/syscalls_32.h:296
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0x17f/0x3f0 arch/x86/entry/syscall_32.c:307
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/syscall_32.c:332
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:370
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4466 [inline]
 slab_alloc_node mm/slub.c:4788 [inline]
 kmem_cache_alloc_lru_noprof+0x382/0x1280 mm/slub.c:4807
 __d_alloc+0x55/0xa00 fs/dcache.c:1740
 d_alloc_parallel+0x99/0x2740 fs/dcache.c:2604
 __lookup_slow+0x138/0x770 fs/namei.c:1901
 lookup_slow+0x6a/0xd0 fs/namei.c:1933
 walk_component fs/namei.c:2279 [inline]
 link_path_walk+0x170f/0x2650 fs/namei.c:2647
 path_parentat fs/namei.c:2851 [inline]
 __filename_parentat+0x2c6/0x990 fs/namei.c:2875
 filename_parentat fs/namei.c:2893 [inline]
 filename_create+0xb3/0x570 fs/namei.c:4903
 filename_mkdirat+0xab/0xa60 fs/namei.c:5259
 __do_sys_mkdirat fs/namei.c:5287 [inline]
 __se_sys_mkdirat+0x82/0x330 fs/namei.c:5284
 __ia32_sys_mkdirat+0x96/0xe0 fs/namei.c:5284
 ia32_sys_call+0x31b7/0x4360 arch/x86/include/generated/asm/syscalls_32.h:297
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0x17f/0x3f0 arch/x86/entry/syscall_32.c:307
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/syscall_32.c:332
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:370
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

CPU: 0 UID: 0 PID: 21122 Comm: syz.8.4203 Tainted: G        W    L      syzkaller #0 PREEMPT(full) 
Tainted: [W]=WARN, [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
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