loop7: detected capacity change from 0 to 64 ===================================================== BUG: KMSAN: uninit-value in hfs_bnode_read_u8 fs/hfs/bnode.c:54 [inline] BUG: KMSAN: uninit-value in hfs_bnode_dump+0x421/0x4c0 fs/hfs/bnode.c:178 hfs_bnode_read_u8 fs/hfs/bnode.c:54 [inline] hfs_bnode_dump+0x421/0x4c0 fs/hfs/bnode.c:178 hfs_brec_remove+0x8d9/0xa60 fs/hfs/brec.c:225 hfs_cat_move+0x1068/0x1390 fs/hfs/catalog.c:364 hfs_rename+0x313/0x550 fs/hfs/dir.c:299 vfs_rename+0x1e87/0x2460 fs/namei.c:5121 do_renameat2+0x175e/0x1d70 fs/namei.c:5270 __do_sys_rename fs/namei.c:5317 [inline] __se_sys_rename fs/namei.c:5315 [inline] __ia32_sys_rename+0xd7/0x140 fs/namei.c:5315 ia32_sys_call+0x3d36/0x42c0 arch/x86/include/generated/asm/syscalls_32.h:39 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 Local variable data.i created at: hfs_bnode_read_u16 fs/hfs/bnode.c:44 [inline] hfs_bnode_dump+0x393/0x4c0 fs/hfs/bnode.c:162 hfs_brec_remove+0x8d9/0xa60 fs/hfs/brec.c:225 CPU: 1 UID: 0 PID: 7483 Comm: syz.7.391 Not tainted 6.15.0-rc3-syzkaller-00094-g02ddfb981de8 #0 PREEMPT(undef) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 =====================================================