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BUG: KMSAN: uninit-value in __hfs_ext_read_extent fs/hfs/extent.c:160 [inline]
BUG: KMSAN: uninit-value in __hfs_ext_cache_extent+0x677/0x7f0 fs/hfs/extent.c:179
 __hfs_ext_read_extent fs/hfs/extent.c:160 [inline]
 __hfs_ext_cache_extent+0x677/0x7f0 fs/hfs/extent.c:179
 hfs_file_truncate+0x81f/0xe60 fs/hfs/extent.c:526
 hfs_delete_inode+0x5d9/0x670 fs/hfs/inode.c:259
 hfs_remove+0x215/0x310 fs/hfs/dir.c:267
 vfs_unlink+0x616/0xab0 fs/namei.c:4586
 do_unlinkat+0x6e6/0xe50 fs/namei.c:4650
 __do_sys_unlinkat fs/namei.c:4691 [inline]
 __se_sys_unlinkat fs/namei.c:4684 [inline]
 __x64_sys_unlinkat+0x1a5/0x210 fs/namei.c:4684
 x64_sys_call+0x2be5/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:264
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4154 [inline]
 slab_alloc_node mm/slub.c:4197 [inline]
 __do_kmalloc_node mm/slub.c:4327 [inline]
 __kmalloc_noprof+0x95f/0x1310 mm/slub.c:4340
 kmalloc_noprof include/linux/slab.h:909 [inline]
 hfs_find_init+0x93/0x260 fs/hfs/bfind.c:21
 hfs_file_truncate+0x55a/0xe60 fs/hfs/extent.c:512
 hfs_delete_inode+0x5d9/0x670 fs/hfs/inode.c:259
 hfs_remove+0x215/0x310 fs/hfs/dir.c:267
 vfs_unlink+0x616/0xab0 fs/namei.c:4586
 do_unlinkat+0x6e6/0xe50 fs/namei.c:4650
 __do_sys_unlinkat fs/namei.c:4691 [inline]
 __se_sys_unlinkat fs/namei.c:4684 [inline]
 __x64_sys_unlinkat+0x1a5/0x210 fs/namei.c:4684
 x64_sys_call+0x2be5/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:264
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 1 UID: 0 PID: 15042 Comm: syz.5.3145 Not tainted 6.15.0-syzkaller-13526-g7a912d04415b #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
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