What’s Vulnerable › Vulnerabilities

CVE-2024-40924: drm/i915/dpt: Make DPT object unshrinkable

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-12 · updated 2026-08-04

Description

In the Linux kernel, the following vulnerability has been resolved: drm/i915/dpt: Make DPT object unshrinkable In some scenarios, the DPT object gets shrunk but the actual framebuffer did not and thus its still there on the DPT's vm->bound_list. Then it tries to rewrite the PTEs via a stale CPU mapping. This causes panic. [vsyrjala: Add TODO comment] (cherry picked from commit 51064d471c53dcc8eddd2333c3f1c1d9131ba36c)

Affected products

• Linux kernel: from 6.0 before 6.1.95; from 6.2 before 6.6.35; from 6.7 before 6.9.6; 6.10-rc1 — fixed in 6.1.95, 6.6.35, 6.9.6

How to fix

Upgrade to a fixed version: Linux kernel 6.1.95, 6.6.35, 6.9.6. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/327280149066f0e5f2e50356b5823f76dabfe86e
• https://git.kernel.org/stable/c/43e2b37e2ab660c3565d4cff27922bc70e79c3f1
• https://git.kernel.org/stable/c/7a9883be3b98673333eec65c4a21cc18e60292eb
• https://git.kernel.org/stable/c/a2552020fb714ff357182c3c179abfac2289f84d
• https://git.kernel.org/stable/c/327280149066f0e5f2e50356b5823f76dabfe86e
• https://git.kernel.org/stable/c/43e2b37e2ab660c3565d4cff27922bc70e79c3f1
• https://git.kernel.org/stable/c/7a9883be3b98673333eec65c4a21cc18e60292eb
• https://git.kernel.org/stable/c/a2552020fb714ff357182c3c179abfac2289f84d
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

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