CVE-2025-38079

crypto: algif_hash - fix double free in hash_accept

State: Published
Severity: 7.8 High
Published: Jun 18, 2025
Updated: Oct 15, 2026
Reserved: Apr 16, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	fe869cdb89c95d060c77eea20204d6c91f233b53 to before 5bff312b59b3f2a54ff504e4f4e47272b64f3633Affected fe869cdb89c95d060c77eea20204d6c91f233b53 to before bf7bba75b91539e93615f560893a599c1e1c98bfAffected fe869cdb89c95d060c77eea20204d6c91f233b53 to before c3059d58f79fdfb2201249c2741514e34562b547Affected fe869cdb89c95d060c77eea20204d6c91f233b53 to before f0f3d09f53534ea385d55ced408f2b67059b16e4Affected fe869cdb89c95d060c77eea20204d6c91f233b53 to before 134daaba93193df9e988524b5cd2f52d15eb1993Affected fe869cdb89c95d060c77eea20204d6c91f233b53 to before 2f45a8d64fb4ed4830a4b3273834ecd6ca504896Affected fe869cdb89c95d060c77eea20204d6c91f233b53 to before 0346f4b742345d1c733c977f3a7aef5a6419a967Affected fe869cdb89c95d060c77eea20204d6c91f233b53 to before b2df03ed4052e97126267e8c13ad4204ea6ba9b6Affected
LinuxLinux	2.6.38Affected before 2.6.38Not affected 5.4.294 through 5.4.Not affected 5.10.238 through 5.10.Not affected 5.15.185 through 5.15.Not affected 6.1.141 through 6.1.Not affected 6.6.93 through 6.6.Not affected 6.12.31 through 6.12.Not affected 6.14.9 through 6.14.*Not affected 6.15 and laterNot affected

Product

Versions

LinuxLinux

fe869cdb89c95d060c77eea20204d6c91f233b53 to before 5bff312b59b3f2a54ff504e4f4e47272b64f3633Affected
fe869cdb89c95d060c77eea20204d6c91f233b53 to before bf7bba75b91539e93615f560893a599c1e1c98bfAffected
fe869cdb89c95d060c77eea20204d6c91f233b53 to before c3059d58f79fdfb2201249c2741514e34562b547Affected
fe869cdb89c95d060c77eea20204d6c91f233b53 to before f0f3d09f53534ea385d55ced408f2b67059b16e4Affected
fe869cdb89c95d060c77eea20204d6c91f233b53 to before 134daaba93193df9e988524b5cd2f52d15eb1993Affected
fe869cdb89c95d060c77eea20204d6c91f233b53 to before 2f45a8d64fb4ed4830a4b3273834ecd6ca504896Affected
fe869cdb89c95d060c77eea20204d6c91f233b53 to before 0346f4b742345d1c733c977f3a7aef5a6419a967Affected
fe869cdb89c95d060c77eea20204d6c91f233b53 to before b2df03ed4052e97126267e8c13ad4204ea6ba9b6Affected

LinuxLinux

2.6.38Affected
before 2.6.38Not affected
5.4.294 through 5.4.*Not affected
5.10.238 through 5.10.*Not affected
5.15.185 through 5.15.*Not affected
6.1.141 through 6.1.*Not affected
6.6.93 through 6.6.*Not affected
6.12.31 through 6.12.*Not affected
6.14.9 through 6.14.*Not affected
6.15 and laterNot affected

References

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