CVE-2026-97506: Linux kernel · crypto: ixp4xx – fix buffer chain unwind on allocation failure
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 12:55 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 24 Sep 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
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 fix is available that properly handles allocation failures by terminating partially constructed buffer chains and ensuring cleanup paths free resources correctly. Users should apply the official Linux kernel patches that address this issue in the affected versions listed.
Description
A null-pointer dereference vulnerability in the Linux kernel's crypto ixp4xx driver was fixed. The flaw occurs when dma_pool_alloc() fails during buffer chain construction, leading to dereferencing a NULL pointer. This can cause kernel instability or crashes. The fix ensures proper termination and cleanup of partially constructed buffer chains on allocation failure.
References
- ubuntu.com/security/CVE-2026-97506 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97506 (opens in a new tab)
- git.kernel.org/stable/c/04cb00106ca4d0fa9eca24cadc4eda6036e855c8 (opens in a new tab)
- git.kernel.org/stable/c/028a7f4f3d69e551f6bf9f728d547bbf4cfc707d (opens in a new tab)
- git.kernel.org/stable/c/25056329384010a8672552b134f609601dc4f80e (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-97506 (opens in a new tab)
- git.kernel.org/stable/c/4918b0bd7d2baafb45d87dca9e322137c96005c2 (opens in a new tab)
- git.kernel.org/stable/c/8c37bc8d6a6f77bf9593fb1bcab6c14c7cf02991 (opens in a new tab)
- git.kernel.org/stable/c/d4007867be42d71795b78fa7f8ce7514dda9ca83 (opens in a new tab)