CVE-2026-72388: Linux kernel · drm/panthor: Always use the IRQ-safe variant when acquiring the fence lock
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 this vulnerability. Users should update to the fixed Linux kernel versions that include the IRQ-safe lock acquisition fix in the drm/panthor driver. No additional mitigation steps are indicated by the vendor advisory.
Description
A vulnerability in the Linux kernel's drm/panthor component was resolved by ensuring the use of the IRQ-safe variant when acquiring the fence lock. This change addresses the risk that dma_fence objects, which can be accessed from hardirq context, were not properly protected, potentially leading to concurrency issues. The fix also involved switching to a guard model for lock acquisition. Multiple specific Linux kernel versions are affected. The vulnerability is rated medium severity and a patch is available.
References
- nvd.nist.gov/vuln/detail/CVE-2026-72388 (opens in a new tab)
- git.kernel.org/stable/c/2946aa6c97ac0e0d777baef8c0e6d944da8724a3 (opens in a new tab)
- git.kernel.org/stable/c/778c57d624974e64535ef1c9d9b4d8e5066153f4 (opens in a new tab)
- ubuntu.com/security/CVE-2026-72388 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-72388 (opens in a new tab)
- git.kernel.org/linus/778c57d624974e64535ef1c9d9b4d8e5066153f4 (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)
- git.kernel.org/stable/c/1804a760422a7d75eb6e1fc0638aaff18d1dde88 (opens in a new tab)
- git.kernel.org/stable/c/9de9e8f279de0c299631f530de66c51642eef50a (opens in a new tab)