7.8

CVE-2023-53316: linux Use After Free

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2023-53316DEBIAN-CVE-2023-53316
Published 16-09-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2023-53316 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.2% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 14 · Related 14
SUSE-SU-2025:03600-1SUSE-SU-2025:03615-1SUSE-SU-2025:03628-1SUSE-SU-2025:03634-1SUSE-SU-2025:20851-1SUSE-SU-2025:20861-1

Timeline

  1. 16-09-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dp: Free resources after unregistering them The DP component's unbind operation walks through the submodules to unregister and clean things up. But if the unbind happens because the DP controller itself is being removed, all the memory for those submodules has just been freed. Change the order of these operations to avoid the many use-after-free that otherwise happens in this code path. Patchwork: https://patchwork.freedesktop.org/patch/542166/

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

0.00 pp

From 0.16% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu108 products
  • linux< 5.15.0-86.96
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1047.52
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ c943b4948b5848fc0e07f875edbd35a973879e22, < c67a55f7cc8d767d624235bf1bcd0947e56abe0f | ≥ c943b4948b5848fc0e07f875edbd35a973879e22, < 3c3f3d35f5e05c468b048eb42a4f8c62c6655692 | ≥ c943b4948b5848fc0e07f875edbd35a973879e22, < 4e9f1a2367aea7d61f6781213e25313cd983b0d7 | ≥ c943b4948b5848fc0e07f875edbd35a973879e22, < 5c3278db06e332fdc14f3f297499fb88ded264d2 | ≥ c943b4948b5848fc0e07f875edbd35a973879e22, < ca47d0dc00968358c136a1847cfed550cedfd1b5 | ≥ c943b4948b5848fc0e07f875edbd35a973879e22, < fa0048a4b1fa7a50c8b0e514f5b428abdf69a6f8 | 5.10
  • linux_kernel≥ 5.10, < 5.10.188 | ≥ 5.11, < 5.15.121 | ≥ 5.16, < 6.1.39 | ≥ 6.2, < 6.3.13 | ≥ 6.4, < 6.4.4
Debian1 product
  • linux< 6.1.52-1 | < 6.4.4-1

3 vendors · 111 products

References

10 links