Strix
63.3K

CVE-2026-80915

Unknown

Last modified

CVE-2026-80915 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix DPT allocation paths. Remove the fallback for VRAM to system memory, I tested it and that doesn't work at all, only a black screen with pipe fault errors were observed. On systems with media GT, extra latency is added when accessing stolen memory when the GT is in MC6. Since we additionally aren't counting how much memory is used for stolen and we could in theory fill up the entire stolen area with DPT's, avoid using stolen and only use the default memory region. Using stolen may also result in random system hangs under load. (cherry picked from commit a196406a3831291598fe8e73245914f7acffdfe0).

Description

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix DPT allocation paths. Remove the fallback for VRAM to system memory, I tested it and that doesn't work at all, only a black screen with pipe fault errors were observed. On systems with media GT, extra latency is added when accessing stolen memory when the GT is in MC6. Since we additionally aren't counting how much memory is used for stolen and we could in theory fill up the entire stolen area with DPT's, avoid using stolen and only use the default memory region. Using stolen may also result in random system hangs under load. (cherry picked from commit a196406a3831291598fe8e73245914f7acffdfe0)

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 775d0adc01a55fe0458139330415d86bb3533efe, < 491c499295fb0b90308b230b0a1075dcdf7f4d12; >= 775d0adc01a55fe0458139330415d86bb3533efe, < f03415030579163f791c978741af7f1f2f6510b7; >= 775d0adc01a55fe0458139330415d86bb3533efe, < c457e2c845ccbf2224386029f3da4937ba424db0; >= 775d0adc01a55fe0458139330415d86bb3533efe, < fc648757908304aedbad74f74bf58192aec383db; 4854ac2f88e2168ee4da2b152c6711772a8149aa; >= 6.11.3, < 6.12
LinuxLinux6.12

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-80915?
In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix DPT allocation paths. Remove the fallback for VRAM to system memory, I tested it and that doesn't work at all, only a black screen with pipe fault errors were observed. On systems with media GT, extra latency is added when accessing stolen memory when the GT is in MC6. Since we additionally aren't counting how much memory is used for stolen and we could in theory fill up the entire stolen area with DPT's, avoid using stolen and only use the default memory region. Using stolen may also result in random system hangs under load. (cherry picked from commit a196406a3831291598fe8e73245914f7acffdfe0)
How severe is CVE-2026-80915?
Severity scoring for CVE-2026-80915 is pending analysis.
How do I fix CVE-2026-80915?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

View all 2026CVEs →

Are you affected by CVE-2026-80915?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST