CVE-2026-99004: Linux kernel · drm/imagination: Size page table preallocation by device address
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 28 Oct 2026, 01:58 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 26.10linuxpkg:deb/ubuntu/linux?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10linux-oraclepkg:deb/ubuntu/linux-oracle?arch=source&distro=stonkingOther 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 has been implemented in the Linux kernel. Users should apply the updated kernel versions that include the corrected page table preallocation logic to prevent out of memory conditions caused by this issue.
Description
A vulnerability in the Linux kernel's drm/imagination driver caused incorrect sizing of page table preallocation by device address. The flaw led to over-allocation of MMU pages when a mapping crossed a page table boundary, potentially exhausting system memory and causing an out of memory panic. This issue has been fixed by correcting the calculation of the page table size to avoid underflow and excessive allocation.
References
- ubuntu.com/security/CVE-2026-99004 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-99004 (opens in a new tab)
- git.kernel.org/stable/c/51b56bad96fd20127034f660b337c00317c65151 (opens in a new tab)
- git.kernel.org/stable/c/789f290b2e81d42820bddcb4010ffbc2ae2ded54 (opens in a new tab)
- git.kernel.org/stable/c/7f73da0facf864fe796371ebaccacb1fee678aaf (opens in a new tab)
- git.kernel.org/stable/c/f9b215b3e37a5047c406545de51bf8a2aeb4cd1c (opens in a new tab)