CVE-2026-68410 (GCVE-0-2026-68410)
Vulnerability from cvelistv5 – Published: 2026-08-10 12:04 – Updated: 2026-08-19 16:35
VLAI
EPSS
VEX
Title
wifi: libertas: fix memory leak in helper_firmware_cb()
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: libertas: fix memory leak in helper_firmware_cb()
helper_firmware_cb() neglects to free the single-stage firmware image
after a successful async load, leading to a memory leak in the USB
firmware-download path.
Fix this memory leak by calling release_firmware() immediately after
lbs_fw_loaded() returns.
The bug was first flagged by an experimental analysis tool we are
developing for kernel memory-management bugs while analyzing
v6.13-rc1. The tool is still under development and is not yet publicly
available. Manual inspection confirms that the bug is still present in
the current wireless tree.
An x86_64 allyesconfig build showed no new warnings. As we do not have
compatible Libertas USB hardware for exercising this firmware-download
path, no runtime testing was able to be performed.
Severity
No CVSS data available.
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
1dfba3060fe7ee03ccec25a91d35085142dfc295 , < 6c1f54a04813676c5a2150d99331c8d21f199374
(git)
Affected: 1dfba3060fe7ee03ccec25a91d35085142dfc295 , < 7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06 (git) Affected: 1dfba3060fe7ee03ccec25a91d35085142dfc295 , < ce829286f4935f1eb6b5dcb64da02910ce149c76 (git) Affected: 1dfba3060fe7ee03ccec25a91d35085142dfc295 , < d497b7566e74920acfe283dd6b2cbf1682890796 (git) Affected: 1dfba3060fe7ee03ccec25a91d35085142dfc295 , < eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c (git) Affected: 1dfba3060fe7ee03ccec25a91d35085142dfc295 , < 6cda91bbb8dc3d22ef0323008a12dcf73a5129da (git) Affected: 1dfba3060fe7ee03ccec25a91d35085142dfc295 , < 644640cde2fb216e6567de5eee780a38dbc95928 (git) Affected: 1dfba3060fe7ee03ccec25a91d35085142dfc295 , < 63c2391deefb31e1b801b7f32bd502ca4808639b (git) |
guessed | |
| Linux | Linux |
Affected:
3.13
Unaffected: 0 , < 3.13 (semver) Unaffected: 5.10.265 , ≤ 5.10.* (semver) Unaffected: 5.15.216 , ≤ 5.15.* (semver) Unaffected: 6.1.183 , ≤ 6.1.* (semver) Unaffected: 6.6.148 , ≤ 6.6.* (semver) Unaffected: 6.12.101 , ≤ 6.12.* (semver) Unaffected: 6.18.42 , ≤ 6.18.* (semver) Unaffected: 7.1.6 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
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"product": "Linux",
"programFiles": [
"drivers/net/wireless/marvell/libertas/firmware.c"
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"vendor": "Linux",
"versions": [
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"version": "3.13"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "5.10.265",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.216",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.183",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.148",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.101",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.18.42",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.265",
"versionStartIncluding": "3.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.216",
"versionStartIncluding": "3.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.183",
"versionStartIncluding": "3.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.101",
"versionStartIncluding": "3.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.42",
"versionStartIncluding": "3.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1.6",
"versionStartIncluding": "3.13",
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{
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}
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas: fix memory leak in helper_firmware_cb()\n\nhelper_firmware_cb() neglects to free the single-stage firmware image\nafter a successful async load, leading to a memory leak in the USB\nfirmware-download path.\n\nFix this memory leak by calling release_firmware() immediately after\nlbs_fw_loaded() returns.\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable. Manual inspection confirms that the bug is still present in\nthe current wireless tree.\n\nAn x86_64 allyesconfig build showed no new warnings. As we do not have\ncompatible Libertas USB hardware for exercising this firmware-download\npath, no runtime testing was able to be performed."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T16:35:04.634Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/6c1f54a04813676c5a2150d99331c8d21f199374"
},
{
"url": "https://git.kernel.org/stable/c/7f28722b3e4e0c8d49c859fea4a9b1fa13b5ae06"
},
{
"url": "https://git.kernel.org/stable/c/ce829286f4935f1eb6b5dcb64da02910ce149c76"
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{
"url": "https://git.kernel.org/stable/c/d497b7566e74920acfe283dd6b2cbf1682890796"
},
{
"url": "https://git.kernel.org/stable/c/eaeb1d74a47fc4864f2c754c0b9d654a9b7dc55c"
},
{
"url": "https://git.kernel.org/stable/c/6cda91bbb8dc3d22ef0323008a12dcf73a5129da"
},
{
"url": "https://git.kernel.org/stable/c/644640cde2fb216e6567de5eee780a38dbc95928"
},
{
"url": "https://git.kernel.org/stable/c/63c2391deefb31e1b801b7f32bd502ca4808639b"
}
],
"title": "wifi: libertas: fix memory leak in helper_firmware_cb()",
"x_generator": {
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}
}
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"cveId": "CVE-2026-68410",
"datePublished": "2026-08-10T12:04:30.194Z",
"dateReserved": "2026-07-30T09:28:09.390Z",
"dateUpdated": "2026-08-19T16:35:04.634Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
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"vulnerability-lookup:meta": {
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"date": "2026-09-30",
"epss": "0.0022",
"percentile": "0.11234"
},
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],
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"vendor": "Linux",
"versions": [
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"version": "3.13"
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{
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"version": "0",
"versionType": "semver"
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{
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{
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},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.183",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.148",
"versionType": "semver"
},
{
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"version": "6.12.101",
"versionType": "semver"
},
{
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{
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"version": "7.1.6",
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},
{
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"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas: fix memory leak in helper_firmware_cb()\n\nhelper_firmware_cb() neglects to free the single-stage firmware image\nafter a successful async load, leading to a memory leak in the USB\nfirmware-download path.\n\nFix this memory leak by calling release_firmware() immediately after\nlbs_fw_loaded() returns.\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable. Manual inspection confirms that the bug is still present in\nthe current wireless tree.\n\nAn x86_64 allyesconfig build showed no new warnings. As we do not have\ncompatible Libertas USB hardware for exercising this firmware-download\npath, no runtime testing was able to be performed."
}
],
"id": "CVE-2026-68410",
"lastModified": "2026-08-19T17:20:48.683",
"metrics": {},
"published": "2026-08-10T13:20:34.660",
"references": [
{
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"url": "https://git.kernel.org/stable/c/63c2391deefb31e1b801b7f32bd502ca4808639b"
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}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-08-31T11:27:28+00:00",
"cve": "CVE-2026-68410",
"id": "CVE-2026-68410",
"initial_release_date": "2026-08-10T00:00:00+00:00",
"product_status:known_affected": "1",
"product_status:known_not_affected": "276",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: wifi: libertas: fix memory leak in helper_firmware_cb()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68410.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2026-09-23T00:19:58Z",
"cve": "CVE-2026-68410",
"id": "CVE-2026-68410",
"initial_release_date": "2026-08-11T23:46:17Z",
"product_status:first_fixed": "68",
"product_status:known_affected": "617",
"product_status:known_not_affected": "60",
"product_status:recommended": "130",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-68410",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-68410.json",
"version": "11"
}
}
}
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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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