What’s Vulnerable › Vulnerabilities
CVE-2024-49909: drm/amd/display: Add NULL check for function pointer in dcn32_set_output_transfer_func
- 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: 2024-10-21 · updated 2026-06-17
- Weakness: CWE-476
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add NULL check for function pointer in dcn32_set_output_transfer_func This commit adds a null check for the set_output_gamma function pointer in the dcn32_set_output_transfer_func function. Previously, set_output_gamma was being checked for null, but then it was being dereferenced without any null check. This could lead to a null pointer dereference if set_output_gamma is null. To fix this, we now ensure that set_output_gamma is not null before dereferencing it. We do this by adding a null check for set_output_gamma before the call to set_output_gamma.
Affected products
- Linux kernel: before 6.10.14; from 6.11 before 6.11.3 — fixed in 6.10.14, 6.11.3
How to fix
Upgrade to a fixed version: Linux kernel 6.10.14, 6.11.3. Check the vendor advisory for mitigations.
References
- https://git.kernel.org/stable/c/28574b08c70e56d34d6f6379326a860b96749051
- https://git.kernel.org/stable/c/496486950c3d2aebf46a3be300296ac091da7a2d
- https://git.kernel.org/stable/c/5298270bdabe97be5b8236e544c9e936415fe1f2
- https://git.kernel.org/stable/c/e087c9738ee1cdeebde346f4dfc819e5f7057e90
- https://git.kernel.org/stable/c/f38b09ba6a335c511eb27920bb9bb4a1b2c20084
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
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