In the Linux kernel, the following vulnerability has been resolved:
hfs/hfsplus: zero-initialize buffer in hfsbnoderead
hfsbnoderead() can return early without writing to the output buffer when isbnodeoffsetvalid() fails or when checkandcorrectrequested_ length() corrects the length to zero. Callers such as hfsbnoderead_ u16() and hfsbnoderead_u8() pass stack-allocated buffers and use the result unconditionally, leading to KMSAN uninit-value reports.
Rather than initializing at each individual call site, zero the buffer at the start of hfsbnoderead() before any validation checks. This ensures all callers in both hfs and hfsplus get a deterministic zero value regardless of which early-return path is taken.
{
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64360.json"
}