===================================================== 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+0x613/0xab0 fs/namei.c:4579 do_unlinkat+0x6e6/0xe50 fs/namei.c:4643 __do_sys_unlinkat fs/namei.c:4684 [inline] __se_sys_unlinkat fs/namei.c:4677 [inline] __x64_sys_unlinkat+0x1a5/0x210 fs/namei.c:4677 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+0xd9/0x1b0 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:4167 [inline] slab_alloc_node mm/slub.c:4210 [inline] __do_kmalloc_node mm/slub.c:4340 [inline] __kmalloc_noprof+0x95f/0x1310 mm/slub.c:4353 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+0x613/0xab0 fs/namei.c:4579 do_unlinkat+0x6e6/0xe50 fs/namei.c:4643 __do_sys_unlinkat fs/namei.c:4684 [inline] __se_sys_unlinkat fs/namei.c:4677 [inline] __x64_sys_unlinkat+0x1a5/0x210 fs/namei.c:4677 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+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f CPU: 0 UID: 0 PID: 11630 Comm: syz.5.1336 Not tainted 6.15.0-rc3-syzkaller-00094-g02ddfb981de8 #0 PREEMPT(undef) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 =====================================================