CVE-2026-74423: Linux kernel · accel/amdxdna: Fix leak when pinning ubuf pages
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, 17:16 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% 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 for the affected Linux kernel versions that fixes the resource leak by properly unpinning partially pinned pages before returning failure. Users should apply the official kernel updates corresponding to their affected versions to remediate this vulnerability. No additional mitigation steps are required beyond applying the patch.
Description
A vulnerability in the Linux kernel's accel/amdxdna component caused a resource leak when pin_user_pages_fast() returned fewer pages than requested. The pages that were successfully pinned were not released properly, leading to a leak. This issue has been fixed by ensuring that any partially pinned pages are unpinned before the function returns failure. The vulnerability affects multiple specific Linux kernel versions and has a medium severity rating. A patch is available to address this issue.
References
- nvd.nist.gov/vuln/detail/CVE-2026-74423 (opens in a new tab)
- git.kernel.org/stable/c/5b24e0903c58cdfd8ebfecb6ac5c5bacfd06e4e7 (opens in a new tab)
- git.kernel.org/stable/c/68dc52f308a17c3103a349f722dd5dea32c50a88 (opens in a new tab)
- git.kernel.org/stable/c/d946347edc4f0a7b846325323d77e936a4c90d0f (opens in a new tab)
- ubuntu.com/security/CVE-2026-74423 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-74423 (opens in a new tab)
- git.kernel.org/linus/d946347edc4f0a7b846325323d77e936a4c90d0f (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)