CVE-2026-68355 (GCVE-0-2026-68355)
Vulnerability from cvelistv5 – Published: 2026-08-10 12:03 – Updated: 2026-08-19 16:34
VLAI
EPSS
VEX
Title
wifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()
When the first entry in msdu_details has a zero buffer address,
the code accesses msdu_details[i - 1] with i == 0, causing a
buffer underflow.
Fix similarly to ath12k_wifi7_hal_rx_msdu_list_get() by adding
a separate check for i == 0 before the main condition to prevent
the out-of-bounds access.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Severity
No CVSS data available.
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
d5c65159f2895379e11ca13f62feabe93278985d , < 085a5fde5bac29c01059e69399b417e91c0a6c18
(git)
Affected: d5c65159f2895379e11ca13f62feabe93278985d , < 31ea4b175bc3ab430be15834d9ee8a1ce65bee15 (git) Affected: d5c65159f2895379e11ca13f62feabe93278985d , < 20d18a5ec6ec364fcaf0d03af6fc43dcc42c6591 (git) Affected: d5c65159f2895379e11ca13f62feabe93278985d , < 69a6a4f60b2da92c0bdfd9264b8ffe053f51f52a (git) Affected: d5c65159f2895379e11ca13f62feabe93278985d , < 904367381a922aa2dc3e8bd2488e6c9180516c7a (git) Affected: d5c65159f2895379e11ca13f62feabe93278985d , < a154ca3c441a67d36b3a9ea63a4f11b06abe6223 (git) Affected: d5c65159f2895379e11ca13f62feabe93278985d , < 725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5 (git) Affected: d5c65159f2895379e11ca13f62feabe93278985d , < 7f11e70629650ff6ea140984e5ce188b775b2683 (git) |
|
| Linux | Linux |
Affected:
5.6
Unaffected: 0 , < 5.6 (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) |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()\n\nWhen the first entry in msdu_details has a zero buffer address,\nthe code accesses msdu_details[i - 1] with i == 0, causing a\nbuffer underflow.\n\nFix similarly to ath12k_wifi7_hal_rx_msdu_list_get() by adding\na separate check for i == 0 before the main condition to prevent\nthe out-of-bounds access.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
}
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()\n\nWhen the first entry in msdu_details has a zero buffer address,\nthe code accesses msdu_details[i - 1] with i == 0, causing a\nbuffer underflow.\n\nFix similarly to ath12k_wifi7_hal_rx_msdu_list_get() by adding\na separate check for i == 0 before the main condition to prevent\nthe out-of-bounds access.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
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"lastModified": "2026-08-19T17:20:45.190",
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"id": "CVE-2026-68355",
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"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: wifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68355.json",
"version": "3"
},
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"current_release_date": "2026-10-03T00:33:17Z",
"cve": "CVE-2026-68355",
"id": "CVE-2026-68355",
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"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-68355",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-68355.json",
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}
}
}
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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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