Vulnerability CVE-2024-26938
Published: 2024-05-01

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)

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