loop2: detected capacity change from 0 to 1024
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BUG: KMSAN: uninit-value in hfsplus_lookup+0x674/0xf70 fs/hfsplus/dir.c:83
 hfsplus_lookup+0x674/0xf70 fs/hfsplus/dir.c:83
 lookup_open fs/namei.c:3686 [inline]
 open_last_lookups fs/namei.c:3807 [inline]
 path_openat+0x298a/0x6760 fs/namei.c:4043
 do_filp_open+0x280/0x660 fs/namei.c:4073
 do_sys_openat2+0x1bb/0x2f0 fs/open.c:1437
 do_sys_open fs/open.c:1452 [inline]
 __do_compat_sys_openat fs/open.c:1514 [inline]
 __se_compat_sys_openat fs/open.c:1512 [inline]
 __ia32_compat_sys_openat+0x238/0x300 fs/open.c:1512
 ia32_sys_call+0x19e0/0x42c0 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+0xb0/0x150 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:
 __alloc_frozen_pages_noprof+0x689/0xf00 mm/page_alloc.c:4982
 alloc_pages_mpol+0x328/0x860 mm/mempolicy.c:2419
 alloc_frozen_pages_noprof+0xf7/0x200 mm/mempolicy.c:2490
 alloc_slab_page mm/slub.c:2451 [inline]
 allocate_slab+0x24d/0x1220 mm/slub.c:2619
 new_slab mm/slub.c:2673 [inline]
 ___slab_alloc+0xfec/0x3480 mm/slub.c:3859
 __slab_alloc mm/slub.c:3949 [inline]
 __slab_alloc_node mm/slub.c:4024 [inline]
 slab_alloc_node mm/slub.c:4185 [inline]
 kmem_cache_alloc_lru_noprof+0x922/0xed0 mm/slub.c:4216
 hfsplus_alloc_inode+0x5a/0xd0 fs/hfsplus/super.c:627
 alloc_inode+0x87/0x4a0 fs/inode.c:346
 iget_locked+0x239/0x12d0 fs/inode.c:1439
 hfsplus_iget+0x5c/0xb80 fs/hfsplus/super.c:65
 hfsplus_btree_open+0x134/0x1d00 fs/hfsplus/btree.c:150
 hfsplus_fill_super+0x1161/0x2740 fs/hfsplus/super.c:474
 get_tree_bdev_flags+0x6e3/0x920 fs/super.c:1679
 get_tree_bdev+0x38/0x50 fs/super.c:1702
 hfsplus_get_tree+0x35/0x40 fs/hfsplus/super.c:640
 vfs_get_tree+0xb0/0x5c0 fs/super.c:1802
 do_new_mount+0x738/0x1610 fs/namespace.c:3885
 path_mount+0x6db/0x1e90 fs/namespace.c:4209
 do_mount fs/namespace.c:4222 [inline]
 __do_sys_mount fs/namespace.c:4433 [inline]
 __se_sys_mount+0x6eb/0x7d0 fs/namespace.c:4410
 __ia32_sys_mount+0xe2/0x150 fs/namespace.c:4410
 ia32_sys_call+0x2733/0x42c0 arch/x86/include/generated/asm/syscalls_32.h:22
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xb0/0x150 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: 0 UID: 0 PID: 29816 Comm: syz.2.8239 Not tainted 6.16.0-rc1-syzkaller-00157-g02adc1490e6d #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
=====================================================