CVE-2024-49909: drm/amd/display: Add NULL check for function pointer in dcn32_set_output_transfer_func
Vulnerability summary
CVE-2024-49909 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.9% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 27 · Related 28Timeline
- 21-10-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
15%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.24% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu103 products
- linux< 6.8.0-54.56
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 6.8.0-1023.25
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 235c67634230b0f9ad8c0185272fed36c892b1c4, < e087c9738ee1cdeebde346f4dfc819e5f7057e90 | ≥ 235c67634230b0f9ad8c0185272fed36c892b1c4, < f38b09ba6a335c511eb27920bb9bb4a1b2c20084 | ≥ 235c67634230b0f9ad8c0185272fed36c892b1c4, < 496486950c3d2aebf46a3be300296ac091da7a2d | ≥ 235c67634230b0f9ad8c0185272fed36c892b1c4, < 5298270bdabe97be5b8236e544c9e936415fe1f2 | ≥ 235c67634230b0f9ad8c0185272fed36c892b1c4, < 28574b08c70e56d34d6f6379326a860b96749051 | 6.0
- linux_kernel< 6.10.14 | ≥ 6.11, < 6.11.3
Debian1 product
- linux< 6.1.123-1 | < 6.11.4-1
3 vendors · 106 products
