CVE-2026-72156: Linux kernel · fpga: microchip-spi: fix zero header_size OOB read in mpf_ops_parse_header()
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 7.0.0-1014.14~24.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 12:55 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 7.0.0-1014.14~24.04.1, 7.0.0-1017.17~24.04.1, 7.0.0-1016.16~24.04.1 +11
Exploitation evidence
Disclosed: evidence found.
CVE published 15 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available and should be applied to affected Linux kernel versions to resolve this vulnerability. The fix returns an error when header_size is zero, preventing the out-of-bounds read. Users should update to patched kernel versions as listed in the affected versions. No additional mitigation is indicated by the vendor advisory.
Description
A vulnerability in the Linux kernel's FPGA microchip-spi driver was fixed to address an out-of-bounds read caused by a zero header_size value in the mpf_ops_parse_header() function. This flaw could cause the function to read memory before the start of a buffer, which is not mitigated by buffer size adjustments. The issue has been resolved by returning an error when header_size is zero. Multiple specific Linux kernel versions are affected. A patch is available to fix this vulnerability.
References
- nvd.nist.gov/vuln/detail/CVE-2026-72156 (opens in a new tab)
- git.kernel.org/stable/c/0d3766fecd9b2db39a18b48021c15c522997ec25 (opens in a new tab)
- git.kernel.org/stable/c/3da8eaf5469eda2353b72038d644fabddb848ce1 (opens in a new tab)
- git.kernel.org/stable/c/43a1974da6bc7ce8f4d1dc1d03d56997428c29c3 (opens in a new tab)
- git.kernel.org/stable/c/a1baee24df72ec8fd1d6925c1d5162ffff4ee3bf (opens in a new tab)
- git.kernel.org/stable/c/c9ef79e34bc1eac4fd59051e5c7b96a74e59d46f (opens in a new tab)
- git.kernel.org/stable/c/e45ec24d8e986d79a8e07f49a816c414ad283622 (opens in a new tab)
- ubuntu.com/security/CVE-2026-72156 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72156 (opens in a new tab)
- git.kernel.org/linus/43a1974da6bc7ce8f4d1dc1d03d56997428c29c3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8889-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-3 (opens in a new tab)