CVE-2026-74422: Linux kernel · drm/rockchip: inno-hdmi: Switch to drmm_kzalloc()
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, 14:05 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 9% 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
An official patch is available that switches the encoder's internal structure allocation from device-managed to drm-managed memory, preventing use-after-free during cleanup. Users should apply the updated linux-hwe-edge kernel versions containing this fix. No additional mitigation steps are indicated by the vendor advisory.
Description
A use-after-free vulnerability was identified and resolved in the Linux kernel's Rockchip DRM driver, specifically in the inno-hdmi encoder handling. The issue arose because the encoder's internal structure was allocated with device-managed memory (devm_kzalloc) but accessed after it was freed during cleanup, leading to potential use-after-free. The fix involved switching to drm-managed allocation (drmm_kzalloc) to ensure the structure remains valid during encoder cleanup. This vulnerability affects specific versions of the linux-hwe-edge kernel and has been addressed with an official patch.
References
- nvd.nist.gov/vuln/detail/CVE-2026-74422 (opens in a new tab)
- git.kernel.org/stable/c/195ab348af4b2bdf5988f9397059317bb68fd797 (opens in a new tab)
- git.kernel.org/stable/c/3cc50e7f73fcf79f28660b9d91566b13cb62e520 (opens in a new tab)
- ubuntu.com/security/CVE-2026-74422 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-74422 (opens in a new tab)
- git.kernel.org/linus/3cc50e7f73fcf79f28660b9d91566b13cb62e520 (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)