CVE-2025-38079

HighCVSS 7.8/10Last modified Jul 30, 2026

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-415

Affected software

VendorProductVersions
LinuxLinux>= fe869cdb89c95d060c77eea20204d6c91f233b53, < 5bff312b59b3f2a54ff504e4f4e47272b64f3633; >= fe869cdb89c95d060c77eea20204d6c91f233b53, < bf7bba75b91539e93615f560893a599c1e1c98bf; >= fe869cdb89c95d060c77eea20204d6c91f233b53, < c3059d58f79fdfb2201249c2741514e34562b547; >= fe869cdb89c95d060c77eea20204d6c91f233b53, < f0f3d09f53534ea385d55ced408f2b67059b16e4; >= fe869cdb89c95d060c77eea20204d6c91f233b53, < 134daaba93193df9e988524b5cd2f52d15eb1993; >= fe869cdb89c95d060c77eea20204d6c91f233b53, < 2f45a8d64fb4ed4830a4b3273834ecd6ca504896; >= fe869cdb89c95d060c77eea20204d6c91f233b53, < 0346f4b742345d1c733c977f3a7aef5a6419a967; >= fe869cdb89c95d060c77eea20204d6c91f233b53, < b2df03ed4052e97126267e8c13ad4204ea6ba9b6
LinuxLinux2.6.38
SiemensSIMATIC S7-1500 CPU 1518-4 PN/DP MFP>= V3.1.5, < *
SiemensSIMATIC S7-1500 CPU 1518-4 PN/DP MFP>= V3.1.5, < *
SiemensSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP>= V3.1.5, < *
SiemensSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP>= V3.1.5, < *
SiemensSIPLUS S7-1500 CPU 1518-4 PN/DP MFP>= V3.1.5, < *

References

Timeline

Published
Jun 18, 2025
Last modified
Jul 30, 2026
NVD status
Modified

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CVE-2025-38079: High severity, CVSS 7.8 | Vulnix