7.8

CVE-2025-38079: crypto: algif_hash - fix double free in hash_accept

Modified
AliasesRHSA-2025:14986RHSA-2025:14987UBUNTU-CVE-2025-38079
Published 18-06-2025Last modified 15-10-2026

Vulnerability summary

CVE-2025-38079 is a high (CVSS 7.8) Double Free vulnerability in debian debian_linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 12% 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
0.21%
0%100%
Low · +0.01 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 131 · Related 114
DLA-4327-1DLA-4328-1DSA-5973-1LSN-0122-1RHSA-2025:12752RHSA-2025:12753

Showing 100 of 131.

Timeline

  1. 18-06-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: algif_hash - fix double free in hash_accept If accept(2) is called on socket type algif_hash with MSG_MORE flag set and crypto_ahash_import fails, sk2 is freed. However, it is also freed in af_alg_release, leading to slab-use-after-free error.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

Increase +0.01 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.

Ubuntu145 products
  • linuxAll versions (No fix recorded) | < 5.15.0-152.162 | < 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1090.97 | < 6.8.0-1046.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Redhat37 products
  • bpftool< 0:3.10.0-1160.138.1.el7
  • bpftool-debuginfo< 0:3.10.0-1160.138.1.el7
  • kernel< 0:3.10.0-1160.138.1.el7
  • kernel-abi-whitelists< 0:3.10.0-1160.138.1.el7
  • kernel-bootwrapper< 0:3.10.0-1160.138.1.el7
Debian2 products
Linux2 products
  • linux≥ fe869cdb89c95d060c77eea20204d6c91f233b53, < 5bff312b59b3f2a54ff504e4f4e47272b64f3633 | ≥ fe869cdb89c95d060c77eea20204d6c91f233b53, < bf7bba75b91539e93615f560893a599c1e1c98bf | ≥ fe869cdb89c95d060c77eea20204d6c91f233b53, < c3059d58f79fdfb2201249c2741514e34562b547 | ≥ fe869cdb89c95d060c77eea20204d6c91f233b53, < f0f3d09f53534ea385d55ced408f2b67059b16e4 | ≥ fe869cdb89c95d060c77eea20204d6c91f233b53, < 134daaba93193df9e988524b5cd2f52d15eb1993 | ≥ fe869cdb89c95d060c77eea20204d6c91f233b53, < 2f45a8d64fb4ed4830a4b3273834ecd6ca504896 | ≥ fe869cdb89c95d060c77eea20204d6c91f233b53, < 0346f4b742345d1c733c977f3a7aef5a6419a967 | ≥ fe869cdb89c95d060c77eea20204d6c91f233b53, < b2df03ed4052e97126267e8c13ad4204ea6ba9b6 | 2.6.38
  • linux_kernel≥ 2.6.38, < 5.4.294 | ≥ 5.5, < 5.10.238 | ≥ 5.11, < 5.15.185 | ≥ 5.16, < 6.1.141 | ≥ 6.2, < 6.6.93 | ≥ 6.7, < 6.12.31 | ≥ 6.13, < 6.14.9 | 6.15:rc1 | 6.15:rc2 | 6.15:rc3 | 6.15:rc4 | 6.15:rc5 | 6.15:rc6 | 6.15:rc7

4 vendors · 186 products

References

55 links
Show all 55 references