5.5

CVE-2024-26662: drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()'

Modified
AliasesUBUNTU-CVE-2024-26662DEBIAN-CVE-2024-26662
Published 02-04-2024Last modified 30-10-2026

Vulnerability summary

CVE-2024-26662 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 13.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.22%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 5
RHSA-2024:9315USN-6895-1USN-6895-2USN-6895-3USN-6895-4USN-6900-1

Timeline

  1. 02-04-2024
    PublishedVulnerability first disclosed.
  2. 30-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()' 'panel_cntl' structure used to control the display panel could be null, dereferencing it could lead to a null pointer access. Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn21/dcn21_hwseq.c:269 dcn21_set_backlight_level() error: we previously assumed 'panel_cntl' could be null (see line 250)

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.22% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu105 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 474ac4a875ca6fea3fc5183d3ad22ef7523dca53, < 94a506cbfd1bd4817502bed097e24cbab23cfce3 | ≥ 474ac4a875ca6fea3fc5183d3ad22ef7523dca53, < 2e150ccea13129eb048679114808eb9770443e4d | ≥ 474ac4a875ca6fea3fc5183d3ad22ef7523dca53, < 0c863cab0e9173f8b6c7bc328bee3b8625f131b5 | ≥ 474ac4a875ca6fea3fc5183d3ad22ef7523dca53, < e96fddb32931d007db12b1fce9b5e8e4c080401b | 5.9
  • linux_kernel≥ 5.9, < 6.6.17 | ≥ 6.7, < 6.7.5 | 6.8:rc1 | 6.8:rc2 | 6.8:rc3
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.7.7-1

3 vendors · 108 products

References

13 links
Show all 13 references