CVE-2026-53140: Linux kernel · drm/v3d: Fix vaddr leak when indirect CSD has zeroed workgroups
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium · fixed in 6.8.0-1066.69~22.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.8.0-1066.69~22.04.1, 6.8.0-1070.78~22.04.1, 6.8.0-1068.75~22.04.1 +38
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 25 Jun 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 has been released in linux-hwe-edge kernel versions 6.8.0-1064.67~22.04.1 and later. Users should upgrade to these fixed versions to remediate the vulnerability. No additional mitigation actions are required as the issue is resolved by the official fix.
Description
A vulnerability in the Linux kernel's drm/v3d subsystem caused a virtual address (vaddr) leak when indirect compute shader dispatch (CSD) had zeroed workgroups. The function responsible for mapping buffers failed to release these mappings if any workgroup count was zero, leading to a resource leak. This issue has been fixed by ensuring the cleanup path is always executed. The vulnerability affects multiple versions of the linux-hwe-edge kernel and has been addressed in fixed versions starting from 6.8.0-1064.67~22.04.1 and later. The CVSS score is 5.5 (medium severity) with an impact on availability. No known exploits in the wild have been reported.
References
- ubuntu.com/security/CVE-2026-53140 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-53140 (opens in a new tab)
- git.kernel.org/linus/ae7676952790f421c40918e2586a2c9f12a682b6 (opens in a new tab)
- git.kernel.org/stable/c/0b59d0946913a0df7d1a033013e259e9b6a76546 (opens in a new tab)
- git.kernel.org/stable/c/60ebeb23eaf3d7fd2e0551fe304309305e31d424 (opens in a new tab)
- git.kernel.org/stable/c/90b629269088a9fe24a02c032be9f08357f47873 (opens in a new tab)
- git.kernel.org/stable/c/ae7676952790f421c40918e2586a2c9f12a682b6 (opens in a new tab)
- ubuntu.com/security/notices/USN-8726-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8727-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8728-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8760-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8726-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8726-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8800-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8760-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8728-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8726-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-8728-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8903-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8905-1 (opens in a new tab)