CVE-2026-98886: Linux kernel · drm/gma500: return errors from Oaktrail HDMI I2C reads
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 28 Oct 2026, 01:29 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 23 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.
Description
In the Linux kernel, the following vulnerability has been resolved: drm/gma500: return errors from Oaktrail HDMI I2C reads xfer_read() waits for the HDMI I2C transaction to reach I2C_TRANSACTION_DONE, but it ignores both timeout and signal returns from wait_for_completion_interruptible_timeout(). If the interrupt never advances the transaction state, the loop can wait forever. Return -ETIMEDOUT when the completion wait expires, propagate interrupted waits, and make the I2C master_xfer callback return the first transfer error instead of reporting a successful message count.
References
- ubuntu.com/security/CVE-2026-98886 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98886 (opens in a new tab)
- git.kernel.org/stable/c/09a950950e7e4e74e021e60941c8e816ef1b4f71 (opens in a new tab)
- git.kernel.org/stable/c/15c6d7f7127a53b7312232178ecf03e5850161d2 (opens in a new tab)
- git.kernel.org/stable/c/898d209157fe2a245f7d9fe28c5921037d8b5033 (opens in a new tab)
- git.kernel.org/stable/c/8add43887cca1fe11a0ded62199ce726901d3f20 (opens in a new tab)
- git.kernel.org/stable/c/9b5ce5c496efd20c1c662cedba88465d39ec1f93 (opens in a new tab)
- git.kernel.org/stable/c/c268df0653ab07bafc3d191e74ea097e3d9b9e69 (opens in a new tab)
- git.kernel.org/stable/c/f85e8224bd4e1a0939cbfe13a6220fbddf61127c (opens in a new tab)