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wifi: mt76: mt7915: avoid nss underflow in mt7915_mcu_get_sta_nss

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: avoid nss underflow in mt7915_mcu_get_sta_nss If a peer's VHT/HE MCS map has no supported spatial stream (all fields 0x3), the loop exits with nss == 0 and the function returned (u8)-1 (255), which was then written into the firmware sta_rec_bf beamforming fields. Clamp the result to 0.

Announced Source revision 1
Original source ↗

CVE-2026-90372

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-90372

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "89029a85482cbcf68026a89fc974e8f6898d6b37",
        "lessThan": "2801477c36a19be4f549fe60e54995f03b0ea7b9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "89029a85482cbcf68026a89fc974e8f6898d6b37",
        "lessThan": "38f4d6323bcd65e41a691432eddabd2b03acdeee",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "89029a85482cbcf68026a89fc974e8f6898d6b37",
        "lessThan": "25f753f7f620955a8a51e63e445d8b9076c51396",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "89029a85482cbcf68026a89fc974e8f6898d6b37",
        "lessThan": "e63c6291ecddf94769ab91f9d8cdb6ca939f7fc6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "89029a85482cbcf68026a89fc974e8f6898d6b37",
        "lessThan": "85bd46ab7674b6d357f9a14791352c65fb09eee9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "89029a85482cbcf68026a89fc974e8f6898d6b37",
        "lessThan": "6ce78d04c7ea4b66838941b5a4232dd1ee0e2cc7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "89029a85482cbcf68026a89fc974e8f6898d6b37",
        "lessThan": "ecfd1a07e78c31d81322fb2d81dc468081cc3004",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "89029a85482cbcf68026a89fc974e8f6898d6b37",
        "lessThan": "4a2f4be532e3ea4e2b536e411793a05aaa51af25",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/mediatek/mt76/mt7915/mcu.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.8"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.8",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.52",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/wireless/mediatek/mt76/mt7915/mcu.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-90372

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#36700 · Revision 1
Added to Heist Feed
Publisher date
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