loop0: detected capacity change from 0 to 64 ===================================================== BUG: KMSAN: uninit-value in hfs_iget+0x1db/0x250 fs/hfs/inode.c:403 hfs_iget+0x1db/0x250 fs/hfs/inode.c:403 hfs_lookup+0x321/0x410 fs/hfs/dir.c:37 lookup_one_qstr_excl_raw+0x207/0x5b0 fs/namei.c:1689 lookup_one_qstr_excl fs/namei.c:1711 [inline] do_unlinkat+0x2e3/0xe50 fs/namei.c:4647 __do_sys_unlinkat fs/namei.c:4700 [inline] __se_sys_unlinkat fs/namei.c:4693 [inline] __x64_sys_unlinkat+0x1a5/0x210 fs/namei.c:4693 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+0xd9/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Uninit was stored to memory at: hfs_iget+0x1d4/0x250 fs/hfs/inode.c:-1 hfs_lookup+0x321/0x410 fs/hfs/dir.c:37 lookup_one_qstr_excl_raw+0x207/0x5b0 fs/namei.c:1689 lookup_one_qstr_excl fs/namei.c:1711 [inline] do_unlinkat+0x2e3/0xe50 fs/namei.c:4647 __do_sys_unlinkat fs/namei.c:4700 [inline] __se_sys_unlinkat fs/namei.c:4693 [inline] __x64_sys_unlinkat+0x1a5/0x210 fs/namei.c:4693 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+0xd9/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Local variable rec created at: hfs_lookup+0x44/0x410 fs/hfs/dir.c:23 lookup_one_qstr_excl_raw+0x207/0x5b0 fs/namei.c:1689 CPU: 0 UID: 0 PID: 6661 Comm: syz.0.15 Not tainted 6.16.0-rc6-syzkaller-g155a3c003e55 #0 PREEMPT(none) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 =====================================================