CVE-2026-80915

drm/xe: Fix DPT allocation paths.

N/A

Published: September 9, 2026 at 04:13 PM UTC

Updated: September 9, 2026 at 05:37 PM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

N/A

Exploit prediction

EPSS 0.2%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v ≥ 6.11.36.11.3 ≤ v < 6.126.12 ≤ v < 6.12.1066.12 ≤ v < 6.18.476.12 ≤ v < 7.1.116.12 ≤ v < 7.24854ac2f88e2168ee4da2b152c6711772a8149aa6.11.3 6.12775d0adc01a55fe0458139330415d86bb3533efe

Vendor states this is fixed in 491c499295fb0b90308b230b0a1075dcdf7f4d12 (fixed)

Vendor states this is fixed in c457e2c845ccbf2224386029f3da4937ba424db0 (fixed)

Vendor states this is fixed in f03415030579163f791c978741af7f1f2f6510b7 (fixed)

Vendor states this is fixed in fc648757908304aedbad74f74bf58192aec383db (fixed)

Vendor states this is fixed in 6.12 (unaffected)

Vendor states this is fixed in 6.12.106 (unaffected)

Vendor states this is fixed in 6.18.47 (unaffected)

Vendor states this is fixed in 7.1.11 (unaffected)

Vendor states this is fixed in 7.2 (unaffected)