fpga: microchip-spi: fix zero header_size OOB read in mpf_ops_parse_header()
Summary
| CVE | CVE-2026-72156 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-15 06:21:33 UTC |
| Updated | 2026-08-17 06:18:15 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: fpga: microchip-spi: fix zero header_size OOB read in mpf_ops_parse_header() mpf_ops_parse_header() reads header_size from the bitstream at MPF_HEADER_SIZE_OFFSET (24). When header_size is zero, the expression *(buf + header_size - 1) reads one byte before the buffer start. Since initial_header_size is set to 71 in mpf_ops, the fpga-mgr core guarantees the buffer is large enough to reach MPF_HEADER_SIZE_OFFSET. The only real gap is the zero header_size case, which cannot be resolved by providing a larger buffer, so return -EINVAL. |
Risk And Classification
EPSS: 0.002050000 probability, percentile 0.108850000 (date 2026-08-17)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 5f8d4a9008307e0bf210906948953386935d361c e45ec24d8e986d79a8e07f49a816c414ad283622 git | Not specified |
| CNA | Linux | Linux | affected 5f8d4a9008307e0bf210906948953386935d361c 0d3766fecd9b2db39a18b48021c15c522997ec25 git | Not specified |
| CNA | Linux | Linux | affected 5f8d4a9008307e0bf210906948953386935d361c a1baee24df72ec8fd1d6925c1d5162ffff4ee3bf git | Not specified |
| CNA | Linux | Linux | affected 5f8d4a9008307e0bf210906948953386935d361c c9ef79e34bc1eac4fd59051e5c7b96a74e59d46f git | Not specified |
| CNA | Linux | Linux | affected 5f8d4a9008307e0bf210906948953386935d361c 3da8eaf5469eda2353b72038d644fabddb848ce1 git | Not specified |
| CNA | Linux | Linux | affected 5f8d4a9008307e0bf210906948953386935d361c 43a1974da6bc7ce8f4d1dc1d03d56997428c29c3 git | Not specified |
| CNA | Linux | Linux | affected 6.0 | Not specified |
| CNA | Linux | Linux | unaffected 6.0 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.178 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.145 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.97 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.40 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1.5 7.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/3da8eaf5469eda2353b72038d644fabddb848ce1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/0d3766fecd9b2db39a18b48021c15c522997ec25 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/c9ef79e34bc1eac4fd59051e5c7b96a74e59d46f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/43a1974da6bc7ce8f4d1dc1d03d56997428c29c3 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/e45ec24d8e986d79a8e07f49a816c414ad283622 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/a1baee24df72ec8fd1d6925c1d5162ffff4ee3bf | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.