7.8

CVE-2024-38545: linux Use After Free

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2024-38545DEBIAN-CVE-2024-38545
Published 19-06-2024Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2024-38545 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15.5% 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
0.25%
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 29 · Related 27
MGASA-2024-0263MGASA-2024-0266SUSE-SU-2024:2360-1SUSE-SU-2024:2362-1SUSE-SU-2024:2365-1SUSE-SU-2024:2372-1

Timeline

  1. 19-06-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix UAF for cq async event The refcount of CQ is not protected by locks. When CQ asynchronous events and CQ destruction are concurrent, CQ may have been released, which will cause UAF. Use the xa_lock() to protect the CQ refcount.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

0.00 pp

From 0.25% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.25%

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

Ubuntu127 products
  • linuxAll versions (No fix recorded) | < 5.15.0-127.137 | < 6.8.0-40.40
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1073.79 | < 6.8.0-1013.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 9a4435375cd151e07c0c38fa601b00115986091b, < 330c825e66ef65278e4ebe57fd49c1d6f3f4e34e | ≥ 9a4435375cd151e07c0c38fa601b00115986091b, < 763780ef0336a973e933e40e919339381732dcaf | ≥ 9a4435375cd151e07c0c38fa601b00115986091b, < 63da190eeb5c9d849b71f457b15b308c94cbaf08 | ≥ 9a4435375cd151e07c0c38fa601b00115986091b, < 39d26cf46306bdc7ae809ecfdbfeff5aa1098911 | ≥ 9a4435375cd151e07c0c38fa601b00115986091b, < 37a7559dc1358a8d300437e99ed8ecdab0671507 | ≥ 9a4435375cd151e07c0c38fa601b00115986091b, < a942ec2745ca864cd8512142100e4027dc306a42 | 4.9
  • linux_kernel≥ 4.9, < 5.15.168 | ≥ 5.16, < 6.1.93 | ≥ 6.2, < 6.6.33 | ≥ 6.7, < 6.8.12 | ≥ 6.9, < 6.9.3
Debian1 product
  • linux< 6.1.94-1 | < 6.8.12-1

3 vendors · 130 products

References

23 links
Show all 23 references