===================================================== 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:178 hfs_bnode_read_u8 fs/hfs/bnode.c:54 [inline] hfs_bnode_dump+0x30e/0x4c0 fs/hfs/bnode.c:178 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:5121 do_renameat2+0x1874/0x1d70 fs/namei.c:5270 __do_sys_rename fs/namei.c:5317 [inline] __se_sys_rename fs/namei.c:5315 [inline] __x64_sys_rename+0xe8/0x140 fs/namei.c:5315 x64_sys_call+0x3a1e/0x3c80 arch/x86/include/generated/asm/syscalls_64.h:83 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x1b0 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:-1 [inline] hfs_bnode_dump+0x3c5/0x4c0 fs/hfs/bnode.c:162 hfs_brec_remove+0x868/0x9a0 fs/hfs/brec.c:225 CPU: 1 UID: 0 PID: 6170 Comm: syz.0.65 Not tainted 6.15.0-rc3-syzkaller-00001-g9d7a0577c9db #0 PREEMPT(undef) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 =====================================================