7.8

CVE-2023-52921: drm/amdgpu: fix possible UAF in amdgpu_cs_pass1()

Modified
AliasesUBUNTU-CVE-2023-52921DEBIAN-CVE-2023-52921
Published 19-11-2024Last modified 05-08-2026

Vulnerability summary

CVE-2023-52921 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 14% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.23%
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 11 · Related 11
SUSE-SU-2024:4314-1SUSE-SU-2024:4315-1SUSE-SU-2024:4316-1SUSE-SU-2024:4318-1SUSE-SU-2024:4364-1SUSE-SU-2024:4376-1

Timeline

  1. 19-11-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix possible UAF in amdgpu_cs_pass1() Since the gang_size check is outside of chunk parsing loop, we need to reset i before we free the chunk data. Suggested by Ye Zhang (@VAR10CK) of Baidu Security.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.23% 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.

Ubuntu77 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
  • linux-aws-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ 2ebf61f2cfb9a11bc17db30df3e675a4cd7418d3, < e08e9dd09809b16f8f8cee8c466841b33d24ed96 | ≥ 2ebf61f2cfb9a11bc17db30df3e675a4cd7418d3, < 90e065677e0362a777b9db97ea21d43a39211399 | 6.2
  • linux_kernel< 6.1.46 | ≥ 6.2, < 6.4.11 | 6.5:rc1 | 6.5:rc2 | 6.5:rc3 | 6.5:rc4 | 6.5:rc5
Debian1 product
  • linux< 6.4.11-1

3 vendors · 80 products

References

7 links