5.5

CVE-2024-47704: drm/amd/display: Check link_res->hpo_dp_link_enc before using it

Modified
AliasesUBUNTU-CVE-2024-47704DEBIAN-CVE-2024-47704
Published 21-10-2024Last modified 12-05-2026

Vulnerability summary

CVE-2024-47704 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 11% 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 (NVD)
EPSS score
0.21%
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 30 · Related 28
DLA-4328-1DSA-6009-1MGASA-2024-0344MGASA-2024-0345OPENSUSE-SU-2024:14500-1OPENSUSE-SU-2025:14705-1

Timeline

  1. 21-10-2024
    PublishedVulnerability first disclosed.
  2. 12-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check link_res->hpo_dp_link_enc before using it [WHAT & HOW] Functions dp_enable_link_phy and dp_disable_link_phy can pass link_res without initializing hpo_dp_link_enc and it is necessary to check for null before dereferencing. This fixes 2 FORWARD_NULL issues reported by Coverity.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.21% 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.

Ubuntu134 products
  • linuxAll versions (No fix recorded) | < 6.8.0-54.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1023.25
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, < 8c22a62288194f072eb3a51045b700fce1c18d9e | ≥ 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, < be2ca7a2c1561390d28bf2f92654d819659ba510 | ≥ 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, < 530e29452b955c30cf2102fa4d07420dc6e0c953 | ≥ 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, < 0508a4e95ac1aefd851ceb97ea050d8abb93262c | ≥ 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, < 0beca868cde8742240cd0038141c30482d2b7eb8 | 4.15
  • linux_kernel< 6.6.55 | ≥ 6.7, < 6.10.14 | ≥ 6.11, < 6.11.2
Debian1 product
  • linux< 6.1.153-1 | < 6.11.2-1

3 vendors · 137 products

References

27 links
Show all 27 references