loop6: 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:5128 do_renameat2+0x175e/0x1d70 fs/namei.c:5277 __do_sys_renameat2 fs/namei.c:5311 [inline] __se_sys_renameat2 fs/namei.c:5308 [inline] __x64_sys_renameat2+0x15d/0x210 fs/namei.c:5308 x64_sys_call+0x3733/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:317 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 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: 9254 Comm: syz.6.1007 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 =====================================================