CVE-2026-97495: Linux kernel · drm/amdkfd: Check bounds on allocate_doorbell
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 14:05 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 24 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 applied to the affected Linux kernel versions by adding bounds checking on the doorbell id value in allocate_doorbell. Users should update to patched kernel versions to remediate this vulnerability.
Description
A vulnerability in the Linux kernel's drm/amdkfd component related to the allocate_doorbell function has been resolved. The issue involved a lack of bounds checking on the doorbell id value, which could be set to a specific value used by CRIU. The vulnerability was fixed by ensuring the doorbell id is less than KFD_MAX_NUM_OF_QUEUES_PER_PROCESS. This flaw affected specific Linux kernel versions and has a medium severity rating.
References
- ubuntu.com/security/CVE-2026-97495 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97495 (opens in a new tab)
- git.kernel.org/stable/c/c2c89118c27cbd3adace62c5df19d15b0e96ade1 (opens in a new tab)
- git.kernel.org/stable/c/e0cecd04a4fc4c75e375b91cf53eab5ba2e4ab7f (opens in a new tab)
- git.kernel.org/stable/c/1f087bb8cf9e8797633da35c85435e557ef74d06 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-97495 (opens in a new tab)
- git.kernel.org/stable/c/3d2ddfc9b361b0d38c3ff4804ce42503e4bc97de (opens in a new tab)
- git.kernel.org/stable/c/7e06636260a2d95e3fa181bc337d0eeb812b7a41 (opens in a new tab)