CVE-2026-46231 (GCVE-0-2026-46231)
Vulnerability from cvelistv5 – Published: 2026-05-28 09:40 – Updated: 2026-06-14 18:04
VLAI
EPSS
VEX
Title
batman-adv: bla: put backbone reference on failed claim hash insert
Summary
In the Linux kernel, the following vulnerability has been resolved:
batman-adv: bla: put backbone reference on failed claim hash insert
When batadv_bla_add_claim() fails to insert a new claim into the hash, it
leaked a reference to the backbone_gw for which the claim was intended.
Call batadv_backbone_gw_put() on the error path to release the reference
and avoid leaking the backbone_gw object.
Severity
5.5 (Medium)
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
3db0decf1185357d6ab2256d0dede1ca9efda03d , < 6c8b68a7ed667a63aa603ba4d3a7088be143007e
(git)
Affected: 3db0decf1185357d6ab2256d0dede1ca9efda03d , < 769f413d374ff2b6ff6d8d8c37b4c1178e6cdf14 (git) Affected: 3db0decf1185357d6ab2256d0dede1ca9efda03d , < 2888c9a154123db0254ae4fb9bea570c7e1f2e06 (git) Affected: 3db0decf1185357d6ab2256d0dede1ca9efda03d , < 65419eb4259a26a3cd3f56fa0e3b3c113bf8c256 (git) Affected: 3db0decf1185357d6ab2256d0dede1ca9efda03d , < fd0ca034c1e71ca7613cde9dd892836b2c2831bd (git) Affected: 3db0decf1185357d6ab2256d0dede1ca9efda03d , < 0baf4b659cdc7305cf685b5a5d60f9e3816ab5d0 (git) Affected: 3db0decf1185357d6ab2256d0dede1ca9efda03d , < 7cccf4eb4f96d3c3af91a00b7a9caa652439542e (git) Affected: 3db0decf1185357d6ab2256d0dede1ca9efda03d , < ba9d20ee9076dac32c371116bacbe72480eb356c (git) Affected: 3fdd337ac0b277a1f40aa73b35283520f426e517 (git) Affected: 485eedfabc2aefac8f09f98a82ba1c1e3e202a6d (git) Affected: 3.16.39 , < 3.17 (semver) Affected: 4.4.217 , < 4.5 (semver) |
guessed | |
| Linux | Linux |
Affected:
4.7
Unaffected: 0 , < 4.7 (semver) Unaffected: 5.10.258 , ≤ 5.10.* (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.90 , ≤ 6.12.* (semver) Unaffected: 6.18.32 , ≤ 6.18.* (semver) Unaffected: 7.0.9 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
guessed |
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"url": "https://git.kernel.org/stable/c/2888c9a154123db0254ae4fb9bea570c7e1f2e06"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/65419eb4259a26a3cd3f56fa0e3b3c113bf8c256"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/6c8b68a7ed667a63aa603ba4d3a7088be143007e"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/769f413d374ff2b6ff6d8d8c37b4c1178e6cdf14"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/7cccf4eb4f96d3c3af91a00b7a9caa652439542e"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/ba9d20ee9076dac32c371116bacbe72480eb356c"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/fd0ca034c1e71ca7613cde9dd892836b2c2831bd"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "None",
"current_release_date": "2026-06-28T07:41:41+00:00",
"cve": "CVE-2026-46231",
"id": "CVE-2026-46231",
"initial_release_date": "2026-05-28T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: batman-adv: bla: put backbone reference on failed claim hash insert",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46231.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-10-01T01:06:43Z",
"cve": "CVE-2026-46231",
"id": "CVE-2026-46231",
"initial_release_date": "2026-05-29T01:14:40Z",
"product_status:known_affected": "537",
"product_status:known_not_affected": "64",
"product_status:recommended": "254",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-46231",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46231.json",
"version": "14"
}
}
}
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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