CVE-2026-53294 (GCVE-0-2026-53294)
Vulnerability from cvelistv5
Published
2026-06-26 19:40
Modified
2026-06-26 19:40
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mailbox: mailbox-test: don't free the reused channel The RX channel can be aliased to the TX channel if it has a different MMIO. This special case needs to be handled when freeing the channels otherwise a double-free occurs.
References
Impacted products
Vendor Product Version
Linux Linux Version: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7
Version: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7
Version: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7
Version: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7
Version: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7
Version: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7
Version: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7
Version: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/mailbox/mailbox-test.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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              "versionType": "git"
            },
            {
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              "versionType": "git"
            },
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            }
          ]
        },
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          "product": "Linux",
          "programFiles": [
            "drivers/mailbox/mailbox-test.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.4"
            },
            {
              "lessThan": "4.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.141",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.91",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.258",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.209",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.175",
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                  "vulnerable": true
                },
                {
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                {
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                },
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                  "versionEndExcluding": "7.1",
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: mailbox-test: don\u0027t free the reused channel\n\nThe RX channel can be aliased to the TX channel if it has a different\nMMIO. This special case needs to be handled when freeing the channels\notherwise a double-free occurs."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-26T19:40:52.927Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fc0089f82c3e36060c2c79156bc2018bfb16b56b"
        },
        {
          "url": "https://git.kernel.org/stable/c/5d4f3d0f64f1016cb78b400a70b67df91fac99b5"
        },
        {
          "url": "https://git.kernel.org/stable/c/c494a11da45ad7ec9b0ff216c3e3ace351193bb6"
        },
        {
          "url": "https://git.kernel.org/stable/c/3afca89fae501dbd7421e1777b5b8f033b1d98d0"
        },
        {
          "url": "https://git.kernel.org/stable/c/5c209299b0113e289e238fa5f2e8f00c59f76060"
        },
        {
          "url": "https://git.kernel.org/stable/c/82f6dcea46cf5de65c4ba7283f7c7b34de4a324d"
        },
        {
          "url": "https://git.kernel.org/stable/c/240c71a2aea36a1a4210f911a1c32ea88777e8e4"
        },
        {
          "url": "https://git.kernel.org/stable/c/88ebadbf0deefdaccdab868b44ff70a0a257f473"
        }
      ],
      "title": "mailbox: mailbox-test: don\u0027t free the reused channel",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53294",
    "datePublished": "2026-06-26T19:40:52.927Z",
    "dateReserved": "2026-06-09T07:44:35.396Z",
    "dateUpdated": "2026-06-26T19:40:52.927Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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