CVE-2025-38079 (GCVE-0-2025-38079)
Vulnerability from cvelistv5 – Published: 2025-06-18 09:33 – Updated: 2026-08-05 11:59
VLAI
EPSS
VEX
Title
crypto: algif_hash - fix double free in hash_accept
Summary
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.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:41 UTC
Assigner
References
11 references
Impacted products
5 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
fe869cdb89c95d060c77eea20204d6c91f233b53 , < 5bff312b59b3f2a54ff504e4f4e47272b64f3633
(git)
Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < bf7bba75b91539e93615f560893a599c1e1c98bf (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < c3059d58f79fdfb2201249c2741514e34562b547 (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < f0f3d09f53534ea385d55ced408f2b67059b16e4 (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < 134daaba93193df9e988524b5cd2f52d15eb1993 (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < 2f45a8d64fb4ed4830a4b3273834ecd6ca504896 (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < 0346f4b742345d1c733c977f3a7aef5a6419a967 (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < b2df03ed4052e97126267e8c13ad4204ea6ba9b6 (git) |
guessed | |
| Linux | Linux |
Affected:
2.6.38
Unaffected: 0 , < 2.6.38 (semver) Unaffected: 5.4.294 , ≤ 5.4.* (semver) Unaffected: 5.10.238 , ≤ 5.10.* (semver) Unaffected: 5.15.185 , ≤ 5.15.* (semver) Unaffected: 6.1.141 , ≤ 6.1.* (semver) Unaffected: 6.6.93 , ≤ 6.6.* (semver) Unaffected: 6.12.31 , ≤ 6.12.* (semver) Unaffected: 6.14.9 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix) |
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
guessed | |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
guessed |
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"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-07-30T09:18:42+00:00",
"cve": "CVE-2025-38079",
"id": "CVE-2025-38079",
"initial_release_date": "2025-06-18T00:00:00+00:00",
"product_status:fixed": "1801",
"product_status:known_affected": "22",
"product_status:known_not_affected": "17",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: crypto: algif_hash - fix double free in hash_accept",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38079.json",
"version": "3"
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"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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