CVE-2026-98781: Linux kernel · drm/mediatek: Fix pdev reference leak in mtk_drm_bind()
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 28 Oct 2026, 04:28 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 18 Oct 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
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 fix for this vulnerability is available and should be applied by updating to patched kernel versions. Users should upgrade to fixed versions of the Linux kernel where this issue has been resolved. No additional mitigation steps are required beyond applying the official patch.
Description
A reference leak vulnerability exists in the Linux kernel's drm/mediatek driver in the mtk_drm_bind() function. When the device is not the mmsys master, the function takes a reference on the disp-mutex device but returns early without releasing it, causing a reference leak. This issue has been fixed by ensuring the reference is dropped before returning from the non-master path.
References
- ubuntu.com/security/CVE-2026-98781 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98781 (opens in a new tab)
- git.kernel.org/stable/c/cb3e0244514d13507c6048777e1d0277e611cf6c (opens in a new tab)
- git.kernel.org/stable/c/b84f1386d84b3a73f73ebb416a3f97c5d64a8ab3 (opens in a new tab)
- git.kernel.org/stable/c/4a8f9cad0fced77b36b297c67c42730c9cb32ec6 (opens in a new tab)
- git.kernel.org/stable/c/3753e34b73fcbe2a2edbe984614a008a261697ef (opens in a new tab)