What’s Vulnerable › Vulnerabilities

CVE-2024-26938: drm/i915/bios: Tolerate devdata==NULL in intel_bios_encoder_supports_dp_dual_mode()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-01 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: drm/i915/bios: Tolerate devdata==NULL in intel_bios_encoder_supports_dp_dual_mode() If we have no VBT, or the VBT didn't declare the encoder in question, we won't have the 'devdata' for the encoder. Instead of oopsing just bail early. We won't be able to tell whether the port is DP++ or not, but so be it. (cherry picked from commit 26410896206342c8a80d2b027923e9ee7d33b733)

Affected products

• Linux kernel: before 6.1.84; from 6.2 before 6.6.24; from 6.7 before 6.7.12; from 6.8 before 6.8.3; 6.9-rc1 — fixed in 6.1.84, 6.6.24, 6.7.12, 6.8.3

How to fix

Upgrade to a fixed version: Linux kernel 6.1.84, 6.6.24, 6.7.12, 6.8.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/32e39bab59934bfd3f37097d4dd85ac5eb0fd549
• https://git.kernel.org/stable/c/94cf2fb6feccd625e5b4e23e1b70f39a206f82ac
• https://git.kernel.org/stable/c/a891add409e3bc381f4f68c2ce9d953f1865cb1f
• https://git.kernel.org/stable/c/f4bbac954d8f9ab214ea1d4f385de4fa6bd92dd0
• https://git.kernel.org/stable/c/32e39bab59934bfd3f37097d4dd85ac5eb0fd549
• https://git.kernel.org/stable/c/72e4d3fb72e9f0f016946158a7d95304832768e6
• https://git.kernel.org/stable/c/94cf2fb6feccd625e5b4e23e1b70f39a206f82ac
• https://git.kernel.org/stable/c/a891add409e3bc381f4f68c2ce9d953f1865cb1f
• https://git.kernel.org/stable/c/f4bbac954d8f9ab214ea1d4f385de4fa6bd92dd0

Get alerted when CVE-2024-26938 or the next vulnerability affects your stack