=====================================================
BUG: KMSAN: uninit-value in __hfsplus_ext_read_extent fs/hfsplus/extents.c:167 [inline]
BUG: KMSAN: uninit-value in __hfsplus_ext_cache_extent+0x82c/0x970 fs/hfsplus/extents.c:191
 __hfsplus_ext_read_extent fs/hfsplus/extents.c:167 [inline]
 __hfsplus_ext_cache_extent+0x82c/0x970 fs/hfsplus/extents.c:191
 hfsplus_file_truncate+0x731/0xf50 fs/hfsplus/extents.c:600
 hfsplus_setattr+0x33e/0x560 fs/hfsplus/inode.c:264
 notify_change+0x1a8e/0x1b80 fs/attr.c:552
 do_truncate+0x22a/0x2b0 fs/open.c:65
 vfs_truncate+0x826/0x8d0 fs/open.c:115
 do_sys_truncate+0x103/0x240 fs/open.c:138
 __do_compat_sys_truncate fs/open.c:156 [inline]
 __se_compat_sys_truncate fs/open.c:154 [inline]
 __ia32_compat_sys_truncate+0x6d/0xb0 fs/open.c:154
 ia32_sys_call+0xac5/0x41f0 arch/x86/include/generated/asm/syscalls_32.h:93
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/syscall_32.c:331
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:369
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4157 [inline]
 slab_alloc_node mm/slub.c:4200 [inline]
 __do_kmalloc_node mm/slub.c:4330 [inline]
 __kmalloc_noprof+0x946/0x1260 mm/slub.c:4343
 kmalloc_noprof include/linux/slab.h:909 [inline]
 hfsplus_find_init+0x97/0x1d0 fs/hfsplus/bfind.c:21
 hfsplus_file_truncate+0x53c/0xf50 fs/hfsplus/extents.c:583
 hfsplus_setattr+0x33e/0x560 fs/hfsplus/inode.c:264
 notify_change+0x1a8e/0x1b80 fs/attr.c:552
 do_truncate+0x22a/0x2b0 fs/open.c:65
 vfs_truncate+0x826/0x8d0 fs/open.c:115
 do_sys_truncate+0x103/0x240 fs/open.c:138
 __do_compat_sys_truncate fs/open.c:156 [inline]
 __se_compat_sys_truncate fs/open.c:154 [inline]
 __ia32_compat_sys_truncate+0x6d/0xb0 fs/open.c:154
 ia32_sys_call+0xac5/0x41f0 arch/x86/include/generated/asm/syscalls_32.h:93
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/syscall_32.c:331
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:369
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

CPU: 1 UID: 0 PID: 10279 Comm: syz.9.1459 Not tainted 6.14.0-syzkaller-13423-ga8662bcd2ff1 #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
=====================================================