CVE-2026-72156: fpga: microchip-spi: fix zero header_size OOB read in mpf_ops_parse_header()
Vulnerability summary
CVE-2026-72156 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 11.9% of scored vulnerabilities.
No CVSS vector published; no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 9 · Related 9Timeline
- 15-08-2026PublishedVulnerability first disclosed.
- 17-08-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
Risk metrics not yet published.
EPSS trend
Probability
0.21%
Chance of exploitation in the next 30 days
Percentile
12%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.21% on 06-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: not stated in public data.
Ubuntu142 products
- linuxAll versions (No fix recorded) | < 6.8.0-147.147 | < 7.0.0-38.38
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 6.8.0-1067.70 | < 7.0.0-1014.14
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian1 product
- linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
Linux1 product
- linux≥ 5f8d4a9008307e0bf210906948953386935d361c, < e45ec24d8e986d79a8e07f49a816c414ad283622 | ≥ 5f8d4a9008307e0bf210906948953386935d361c, < 0d3766fecd9b2db39a18b48021c15c522997ec25 | ≥ 5f8d4a9008307e0bf210906948953386935d361c, < a1baee24df72ec8fd1d6925c1d5162ffff4ee3bf | ≥ 5f8d4a9008307e0bf210906948953386935d361c, < c9ef79e34bc1eac4fd59051e5c7b96a74e59d46f | ≥ 5f8d4a9008307e0bf210906948953386935d361c, < 3da8eaf5469eda2353b72038d644fabddb848ce1 | ≥ 5f8d4a9008307e0bf210906948953386935d361c, < 43a1974da6bc7ce8f4d1dc1d03d56997428c29c3 | 6.0
3 vendors · 144 products
