CVE-2026-90286: Linux kernel · drm/amdgpu/gfx6: Use PFP on the compute queues too
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 8.8 High.
Data as of 26 Oct 2026, 13:47 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 17 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 for this vulnerability has been released in updated Linux kernel versions for the linux-azure distribution. Users should apply the official kernel updates that include this fix. Since this is not a cloud service, remediation depends on applying the vendor-provided patches. Patch status is confirmed by the presence of fixed versions listed in the affectedVersions field.
Description
A vulnerability in the Linux kernel's drm/amdgpu/gfx6 component has been resolved. The issue involves improper handling of the PFP (Prefetch Parser) on compute queues for GFX6 hardware, which share the same CP path as graphics rings but lack draw command support. The fix ensures that PFP is used for register writes on both graphics and compute queues and that pipeline synchronization properly waits on the PFP to prevent execution overlap. This addresses synchronization issues that could lead to security impacts.
References
- nvd.nist.gov/vuln/detail/CVE-2026-90286 (opens in a new tab)
- git.kernel.org/stable/c/2aa869c6b23e0b1b7f39f762618852811d75deb9 (opens in a new tab)
- git.kernel.org/stable/c/60f20946cd318518ddc2c0da12103c666b2b9564 (opens in a new tab)
- git.kernel.org/stable/c/8d752f1bb73fabe5a425acbf5c767c0fe68bf3c5 (opens in a new tab)
- git.kernel.org/stable/c/b5d1d3e4519dc8f1b55d6b236848bed67b11a2e8 (opens in a new tab)
- git.kernel.org/stable/c/e1d3018e3621c90cec070b6915836ae129656663 (opens in a new tab)
- git.kernel.org/stable/c/e399e9d7e291ccbeba6560fb8278c8d2aa744521 (opens in a new tab)
- git.kernel.org/stable/c/f37211b9c01433f0bbb4709d25df7a0257cf915b (opens in a new tab)
- git.kernel.org/stable/c/fbabc39b4f0fc771b00525ffd448be6a84355048 (opens in a new tab)
- ubuntu.com/security/CVE-2026-90286 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-90286 (opens in a new tab)
- git.kernel.org/linus/60f20946cd318518ddc2c0da12103c666b2b9564 (opens in a new tab)