{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7"
            },
            {
              "fixed": "fc0089f82c3e36060c2c79156bc2018bfb16b56b"
            },
            {
              "fixed": "5d4f3d0f64f1016cb78b400a70b67df91fac99b5"
            },
            {
              "fixed": "c494a11da45ad7ec9b0ff216c3e3ace351193bb6"
            },
            {
              "fixed": "3afca89fae501dbd7421e1777b5b8f033b1d98d0"
            },
            {
              "fixed": "5c209299b0113e289e238fa5f2e8f00c59f76060"
            },
            {
              "fixed": "82f6dcea46cf5de65c4ba7283f7c7b34de4a324d"
            },
            {
              "fixed": "240c71a2aea36a1a4210f911a1c32ea88777e8e4"
            },
            {
              "fixed": "88ebadbf0deefdaccdab868b44ff70a0a257f473"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.4.0"
            },
            {
              "fixed": "5.10.258"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.141"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.91"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.33"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53294.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: mailbox-test: don't 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.",
  "id": "CVE-2026-53294",
  "modified": "2026-07-09T03:51:58.547089615Z",
  "published": "2026-06-26T19:40:52.927Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/240c71a2aea36a1a4210f911a1c32ea88777e8e4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3afca89fae501dbd7421e1777b5b8f033b1d98d0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5c209299b0113e289e238fa5f2e8f00c59f76060"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5d4f3d0f64f1016cb78b400a70b67df91fac99b5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/82f6dcea46cf5de65c4ba7283f7c7b34de4a324d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/88ebadbf0deefdaccdab868b44ff70a0a257f473"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c494a11da45ad7ec9b0ff216c3e3ace351193bb6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fc0089f82c3e36060c2c79156bc2018bfb16b56b"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53294.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53294"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "mailbox: mailbox-test: don't free the reused channel"
}