CVE-2026-90286 (CVSS 8.8)

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx6: Use PFP on the compute queues too On GFX6, the compute rings use the same CP path as the graphics ring. The only difference is that they don't support draw commands. (As opposed to GFX7 and newer which have a separate command parser that is called MEC for compute queues.) This means that we have to take into consideration that the PFP also exists on compute queues on GFX6: Use PFP for register writes on both graphics and compute queues. In the pipeline sync, use the PFP to wait for the previous fence (and not the ME) to prevent the PFP from starting to execute the next submission while the ME is still in the previous submission. After a VM flush, emit PFP_SYNC_ME on compute queues as well.

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CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0018

Probability of exploitation

0.07%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/2aa869c6b23e0b1b7f39f762618852811d75deb9 https://git.kernel.org/stable/c/60f20946cd318518ddc2c0da12103c666b2b9564 https://git.kernel.org/stable/c/8d752f1bb73fabe5a425acbf5c767c0fe68bf3c5 https://git.kernel.org/stable/c/b5d1d3e4519dc8f1b55d6b236848bed67b11a2e8 https://git.kernel.org/stable/c/e1d3018e3621c90cec070b6915836ae129656663 https://git.kernel.org/stable/c/e399e9d7e291ccbeba6560fb8278c8d2aa744521 https://git.kernel.org/stable/c/f37211b9c01433f0bbb4709d25df7a0257cf915b https://git.kernel.org/stable/c/fbabc39b4f0fc771b00525ffd448be6a84355048

Frequently Asked Questions

What is CVE-2026-90286? +

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx6: Use PFP on the compute queues too On GFX6, the compute rings use the same CP path as the graphics ring. The only difference is that they don't support draw commands. (As opposed to GFX7 and newer which have a separate command parser that is called MEC for compute queues.) This means that we have to take into consideration that the PFP also exists on compute queues on GFX6: Use PFP for register writes on both graphics and compute queues. In the pipeline sync, use the PFP to wait for the previous fence (and not the ME) to prevent the PFP from starting to execute the next submission while the ME is still in the previous submission. After a VM flush, emit PFP_SYNC_ME on compute queues as well. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-90286? +

CVE-2026-90286 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0018, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-90286? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

CVE-2026-90286