=====================================================
BUG: KMSAN: uninit-value in __hfsplus_ext_read_extent fs/hfsplus/extents.c:167 [inline]
BUG: KMSAN: uninit-value in __hfsplus_ext_cache_extent+0x7cb/0x990 fs/hfsplus/extents.c:191
 __hfsplus_ext_read_extent fs/hfsplus/extents.c:167 [inline]
 __hfsplus_ext_cache_extent+0x7cb/0x990 fs/hfsplus/extents.c:191
 hfsplus_file_truncate+0x7a3/0xfc0 fs/hfsplus/extents.c:600
 hfsplus_file_release+0x146/0x760 fs/hfsplus/inode.c:233
 __fput+0x60b/0x1040 fs/file_table.c:465
 ____fput+0x25/0x30 fs/file_table.c:493
 task_work_run+0x209/0x2b0 kernel/task_work.c:227
 get_signal+0x139/0x2a20 kernel/signal.c:2807
 arch_do_signal_or_restart+0x53/0xbf0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0xec/0x330 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x1e3/0x210 arch/x86/entry/syscall_64.c:100
 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]
 hfsplus_find_init+0x90/0x1d0 fs/hfsplus/bfind.c:21
 hfsplus_file_truncate+0x513/0xfc0 fs/hfsplus/extents.c:583
 hfsplus_file_release+0x146/0x760 fs/hfsplus/inode.c:233
 __fput+0x60b/0x1040 fs/file_table.c:465
 ____fput+0x25/0x30 fs/file_table.c:493
 task_work_run+0x209/0x2b0 kernel/task_work.c:227
 get_signal+0x139/0x2a20 kernel/signal.c:2807
 arch_do_signal_or_restart+0x53/0xbf0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0xec/0x330 kernel/entry/common.c:111
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x1e3/0x210 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 0 UID: 0 PID: 8260 Comm: syz.5.543 Not tainted 6.16.0-rc2-syzkaller-00082-gfb4d33ab452e #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
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