CVE-2026-74393: Linux kernel · drm/syncobj: Fix memory leak in drm_syncobj_find_fence()
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 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-hwe-edge kernel versions. Users and administrators should apply the official kernel updates that include the fix for this memory leak. No additional mitigation steps are indicated by the vendor advisory.
Description
A memory leak vulnerability in the Linux kernel's drm/syncobj subsystem was fixed. The issue was caused by drm_syncobj_find_fence() not properly handling references, leading to memory leaks. This was addressed by correcting the reference management in drm_syncobj_find_fence(). The vulnerability affects specific versions of the linux-hwe-edge kernel. A patch is available to resolve this issue.
References
- nvd.nist.gov/vuln/detail/CVE-2026-74393 (opens in a new tab)
- git.kernel.org/stable/c/5c5994a1204743fa55e4c198ed93a6c36f21cd1f (opens in a new tab)
- git.kernel.org/stable/c/7471006cd854d159723344be809e8287a2d75502 (opens in a new tab)
- git.kernel.org/stable/c/e245f3491bf30a758786a4424854f61fee472308 (opens in a new tab)
- git.kernel.org/stable/c/e5b93bd6fdb92aa5e4689715d7e8487d9ce66a38 (opens in a new tab)
- ubuntu.com/security/CVE-2026-74393 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-74393 (opens in a new tab)
- git.kernel.org/linus/e5b93bd6fdb92aa5e4689715d7e8487d9ce66a38 (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)