CVE-2026-98003: Linux kernel · iommu/amd: Do not reallocate GA log buffers on resume
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 17:16 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Sep 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 has been implemented in the Linux kernel to prevent reallocation of GA log buffers on resume and to clear pointers properly. Users should apply the updated kernel versions containing this fix. No additional mitigation is indicated by the vendor advisory.
Description
A vulnerability in the Linux kernel's iommu/amd component related to GA log buffer reallocation on resume has been resolved. The issue involved unconditional reassignment of GA log pointers on every resume, causing memory leaks and improper use of GFP_KERNEL allocation in a context where interrupts are disabled. The fix prevents reallocation if buffers are already allocated and clears pointers on free to avoid dangling references.
References
- ubuntu.com/security/CVE-2026-98003 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98003 (opens in a new tab)
- git.kernel.org/stable/c/94458b80d3b203c1c9e2c98aa7319b7713e006c0 (opens in a new tab)
- git.kernel.org/stable/c/b6be275d19cee01f8f1f08a2ff18337103d05d40 (opens in a new tab)
- git.kernel.org/stable/c/00a7dd64888d6dd72110b40e2824a088cf7b7386 (opens in a new tab)