loop3: detected capacity change from 0 to 1024
=====================================================
BUG: KMSAN: uninit-value in irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 include/linux/irq-entry-common.h:464
 irqentry_exit_to_kernel_mode_preempt+0xb0/0xc0 include/linux/irq-entry-common.h:464
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x82/0xa00 kernel/entry/common.c:164
 sysvec_apic_timer_interrupt+0x52/0x90 arch/x86/kernel/apic/apic.c:1061
 asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:697
 virt_to_page_or_null+0x0/0x170 mm/kmsan/shadow.c:59
 kmsan_get_shadow_origin_ptr+0x4a/0xb0 mm/kmsan/shadow.c:102
 get_shadow_origin_ptr mm/kmsan/instrumentation.c:38 [inline]
 __msan_metadata_ptr_for_store_2+0x27/0x40 mm/kmsan/instrumentation.c:92
 char2uni+0x13e/0x1d0 fs/nls/nls_utf8.c:-1
 asc2unichar fs/hfsplus/unicode.c:367 [inline]
 hfsplus_hash_dentry+0x2d2/0x1470 fs/hfsplus/unicode.c:506
 link_path_walk+0x13c4/0x23f0 fs/namei.c:2623
 path_lookupat+0x107/0xdf0 fs/namei.c:2808
 filename_lookup+0x2bc/0x800 fs/namei.c:2838
 vfs_open_tree+0x332/0x540 fs/namespace.c:3224
 __do_sys_open_tree fs/namespace.c:3239 [inline]
 __se_sys_open_tree fs/namespace.c:3237 [inline]
 __x64_sys_open_tree+0x115/0x310 fs/namespace.c:3237
 x64_sys_call+0x3554/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:429
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15d/0x3c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable u created at:
 char2uni+0x43/0x1d0 fs/nls/nls_utf8.c:32
 asc2unichar fs/hfsplus/unicode.c:367 [inline]
 hfsplus_hash_dentry+0x2d2/0x1470 fs/hfsplus/unicode.c:506

CPU: 1 UID: 0 PID: 18867 Comm: syz.3.4768 Tainted: G        W    L      syzkaller #0 PREEMPT(lazy) 
Tainted: [W]=WARN, [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
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