CVE-2026-90378 (GCVE-0-2026-90378)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:09 – Updated: 2026-09-17 16:09
VLAI
Title
wifi: mt76: mt792x: Fix memory leak in SDIO TX path
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt792x: Fix memory leak in SDIO TX path When tx_prepare_skb() returns an error in the SDIO TX path, the skb is not freed, leading to a memory leak. This can occur when zero-length frames (such as WNM NULL frames) are dropped to prevent potential hardware TX hangs. Fix this by properly releasing the skb with ieee80211_tx_status_ext() when tx_prepare_skb() fails.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b747fa343817fd322b4463dda99d28fc51e19c52 , < b64d196280aff8494ba6fb387e37b18479c99b83 (git)
Affected: b747fa343817fd322b4463dda99d28fc51e19c52 , < 9ef1351209d42b7d96604f2a13d7ea8215a24e07 (git)
Affected: b747fa343817fd322b4463dda99d28fc51e19c52 , < c2c7f16f2c62f79f7c381e500afa7123580742a5 (git)
Affected: b747fa343817fd322b4463dda99d28fc51e19c52 , < 6a8000c76dc34490a2bb321ad1a5f882a2ccab7c (git)
Affected: b747fa343817fd322b4463dda99d28fc51e19c52 , < ddf6a17d8e3d0dbb841c13c10d7c1340a138a80d (git)
Affected: b747fa343817fd322b4463dda99d28fc51e19c52 , < 6a342db7a6502bc6781579145e05d4d4731786ab (git)
Affected: b747fa343817fd322b4463dda99d28fc51e19c52 , < 808f2767d4217a5b96f674288573b9b89d432eed (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.15.221 , ≤ 5.15.* (semver)
Unaffected: 6.1.188 , ≤ 6.1.* (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.52 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/sdio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b64d196280aff8494ba6fb387e37b18479c99b83",
              "status": "affected",
              "version": "b747fa343817fd322b4463dda99d28fc51e19c52",
              "versionType": "git"
            },
            {
              "lessThan": "9ef1351209d42b7d96604f2a13d7ea8215a24e07",
              "status": "affected",
              "version": "b747fa343817fd322b4463dda99d28fc51e19c52",
              "versionType": "git"
            },
            {
              "lessThan": "c2c7f16f2c62f79f7c381e500afa7123580742a5",
              "status": "affected",
              "version": "b747fa343817fd322b4463dda99d28fc51e19c52",
              "versionType": "git"
            },
            {
              "lessThan": "6a8000c76dc34490a2bb321ad1a5f882a2ccab7c",
              "status": "affected",
              "version": "b747fa343817fd322b4463dda99d28fc51e19c52",
              "versionType": "git"
            },
            {
              "lessThan": "ddf6a17d8e3d0dbb841c13c10d7c1340a138a80d",
              "status": "affected",
              "version": "b747fa343817fd322b4463dda99d28fc51e19c52",
              "versionType": "git"
            },
            {
              "lessThan": "6a342db7a6502bc6781579145e05d4d4731786ab",
              "status": "affected",
              "version": "b747fa343817fd322b4463dda99d28fc51e19c52",
              "versionType": "git"
            },
            {
              "lessThan": "808f2767d4217a5b96f674288573b9b89d432eed",
              "status": "affected",
              "version": "b747fa343817fd322b4463dda99d28fc51e19c52",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/sdio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.12"
            },
            {
              "lessThan": "5.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.221",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.188",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.157",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.110",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.52",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt792x: Fix memory leak in SDIO TX path\n\nWhen tx_prepare_skb() returns an error in the SDIO TX path, the\nskb is not freed, leading to a memory leak. This can occur when\nzero-length frames (such as WNM NULL frames) are dropped to prevent\npotential hardware TX hangs.\n\nFix this by properly releasing the skb with ieee80211_tx_status_ext()\nwhen tx_prepare_skb() fails."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:09:16.655Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b64d196280aff8494ba6fb387e37b18479c99b83"
        },
        {
          "url": "https://git.kernel.org/stable/c/9ef1351209d42b7d96604f2a13d7ea8215a24e07"
        },
        {
          "url": "https://git.kernel.org/stable/c/c2c7f16f2c62f79f7c381e500afa7123580742a5"
        },
        {
          "url": "https://git.kernel.org/stable/c/6a8000c76dc34490a2bb321ad1a5f882a2ccab7c"
        },
        {
          "url": "https://git.kernel.org/stable/c/ddf6a17d8e3d0dbb841c13c10d7c1340a138a80d"
        },
        {
          "url": "https://git.kernel.org/stable/c/6a342db7a6502bc6781579145e05d4d4731786ab"
        },
        {
          "url": "https://git.kernel.org/stable/c/808f2767d4217a5b96f674288573b9b89d432eed"
        }
      ],
      "title": "wifi: mt76: mt792x: Fix memory leak in SDIO TX path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90378",
    "datePublished": "2026-09-17T16:09:16.655Z",
    "dateReserved": "2026-09-11T19:38:34.808Z",
    "dateUpdated": "2026-09-17T16:09:16.655Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-90378",
      "date": "2026-09-25",
      "epss": "0.00215",
      "percentile": "0.10572"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/wireless/mediatek/mt76/sdio.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "b64d196280aff8494ba6fb387e37b18479c99b83",
                    "status": "affected",
                    "version": "b747fa343817fd322b4463dda99d28fc51e19c52",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "9ef1351209d42b7d96604f2a13d7ea8215a24e07",
                    "status": "affected",
                    "version": "b747fa343817fd322b4463dda99d28fc51e19c52",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "c2c7f16f2c62f79f7c381e500afa7123580742a5",
                    "status": "affected",
                    "version": "b747fa343817fd322b4463dda99d28fc51e19c52",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "6a8000c76dc34490a2bb321ad1a5f882a2ccab7c",
                    "status": "affected",
                    "version": "b747fa343817fd322b4463dda99d28fc51e19c52",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "ddf6a17d8e3d0dbb841c13c10d7c1340a138a80d",
                    "status": "affected",
                    "version": "b747fa343817fd322b4463dda99d28fc51e19c52",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "6a342db7a6502bc6781579145e05d4d4731786ab",
                    "status": "affected",
                    "version": "b747fa343817fd322b4463dda99d28fc51e19c52",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "808f2767d4217a5b96f674288573b9b89d432eed",
                    "status": "affected",
                    "version": "b747fa343817fd322b4463dda99d28fc51e19c52",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/wireless/mediatek/mt76/sdio.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.12"
                  },
                  {
                    "lessThan": "5.12",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.221",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.188",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.157",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.110",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.52",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.2.*",
                    "status": "unaffected",
                    "version": "7.2.6",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.3-rc1",
                    "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: mt76: mt792x: Fix memory leak in SDIO TX path\n\nWhen tx_prepare_skb() returns an error in the SDIO TX path, the\nskb is not freed, leading to a memory leak. This can occur when\nzero-length frames (such as WNM NULL frames) are dropped to prevent\npotential hardware TX hangs.\n\nFix this by properly releasing the skb with ieee80211_tx_status_ext()\nwhen tx_prepare_skb() fails."
          }
        ],
        "id": "CVE-2026-90378",
        "lastModified": "2026-09-17T17:17:37.040",
        "metrics": {},
        "published": "2026-09-17T17:17:37.040",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/6a342db7a6502bc6781579145e05d4d4731786ab"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/6a8000c76dc34490a2bb321ad1a5f882a2ccab7c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/808f2767d4217a5b96f674288573b9b89d432eed"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/9ef1351209d42b7d96604f2a13d7ea8215a24e07"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/b64d196280aff8494ba6fb387e37b18479c99b83"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/c2c7f16f2c62f79f7c381e500afa7123580742a5"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/ddf6a17d8e3d0dbb841c13c10d7c1340a138a80d"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.



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.