loop4: 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+0x30e/0x4c0 fs/hfs/bnode.c:172 hfs_bnode_read_u8 fs/hfs/bnode.c:54 [inline] hfs_bnode_dump+0x30e/0x4c0 fs/hfs/bnode.c:172 hfs_brec_remove+0x868/0x9a0 fs/hfs/brec.c:225 hfs_cat_move+0xfc9/0x12e0 fs/hfs/catalog.c:364 hfs_rename+0x344/0x500 fs/hfs/dir.c:299 vfs_rename+0x1d9d/0x2280 fs/namei.c:5086 do_renameat2+0x1577/0x1b80 fs/namei.c:5235 __do_sys_rename fs/namei.c:5282 [inline] __se_sys_rename fs/namei.c:5280 [inline] __ia32_sys_rename+0xd8/0x130 fs/namei.c:5280 ia32_sys_call+0x3e2c/0x41f0 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:-1 [inline] hfs_bnode_dump+0x3c5/0x4c0 fs/hfs/bnode.c:156 hfs_brec_remove+0x868/0x9a0 fs/hfs/brec.c:225 CPU: 0 UID: 0 PID: 8153 Comm: syz.4.533 Not tainted 6.15.0-rc2-syzkaller #0 PREEMPT(undef) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 =====================================================