CVE-2026-74421: Linux kernel · drm/rockchip: dw_dp: 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, 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 that switches the encoder structure allocation from device-managed to DRM-managed memory, preventing use-after-free. Users should apply the official Linux kernel updates that include this fix. The vendor advisory confirms the availability of this fix.
Description
A use-after-free vulnerability was identified and resolved in the Linux kernel's Rockchip DRM driver. The issue arises because the driver's internal encoder structure was allocated with device-managed memory but accessed after it was freed during cleanup, leading to potential memory corruption. The fix involved switching the allocation to a DRM-managed method to ensure the structure remains valid during encoder cleanup. Multiple specific Linux kernel versions are affected. A patch is available to address this vulnerability.
References
- nvd.nist.gov/vuln/detail/CVE-2026-74421 (opens in a new tab)
- git.kernel.org/stable/c/0d60b835bca42f0f790689dd47819ed881a92ccc (opens in a new tab)
- git.kernel.org/stable/c/6b0b92d1110eccccbd5ba2949bd2b9fb6ea5fc12 (opens in a new tab)
- git.kernel.org/stable/c/ed9da8d23020352ad24c528db09b5acdd78b81fd (opens in a new tab)
- ubuntu.com/security/CVE-2026-74421 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-74421 (opens in a new tab)
- git.kernel.org/linus/ed9da8d23020352ad24c528db09b5acdd78b81fd (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)