Vulnerability-Lookup

CVE-2026-53294 (GCVE-0-2026-53294)

Vulnerability from cvelistv5 – Published: 2026-06-26 19:40 – Updated: 2026-06-26 19:40

Title

mailbox: mailbox-test: don't free the reused channel

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.

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/fc0089f82c3e36060…
https://git.kernel.org/stable/c/5d4f3d0f64f1016cb…
https://git.kernel.org/stable/c/c494a11da45ad7ec9…
https://git.kernel.org/stable/c/3afca89fae501dbd7…
https://git.kernel.org/stable/c/5c209299b0113e289…
https://git.kernel.org/stable/c/82f6dcea46cf5de65…
https://git.kernel.org/stable/c/240c71a2aea36a1a4…
https://git.kernel.org/stable/c/88ebadbf0deefdacc…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < fc0089f82c3e36060c2c79156bc2018bfb16b56b (git) Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < 5d4f3d0f64f1016cb78b400a70b67df91fac99b5 (git) Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < c494a11da45ad7ec9b0ff216c3e3ace351193bb6 (git) Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < 3afca89fae501dbd7421e1777b5b8f033b1d98d0 (git) Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < 5c209299b0113e289e238fa5f2e8f00c59f76060 (git) Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < 82f6dcea46cf5de65c4ba7283f7c7b34de4a324d (git) Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < 240c71a2aea36a1a4210f911a1c32ea88777e8e4 (git) Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < 88ebadbf0deefdaccdab868b44ff70a0a257f473 (git)
Linux	Linux	Affected: 4.4 Unaffected: 0 , < 4.4 (semver) Unaffected: 5.10.258 , ≤ 5.10.* (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.141 , ≤ 6.6.* (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "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": [
            {
              "lessThan": "fc0089f82c3e36060c2c79156bc2018bfb16b56b",
              "status": "affected",
              "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
              "versionType": "git"
            },
            {
              "lessThan": "5d4f3d0f64f1016cb78b400a70b67df91fac99b5",
              "status": "affected",
              "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
              "versionType": "git"
            },
            {
              "lessThan": "c494a11da45ad7ec9b0ff216c3e3ace351193bb6",
              "status": "affected",
              "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
              "versionType": "git"
            },
            {
              "lessThan": "3afca89fae501dbd7421e1777b5b8f033b1d98d0",
              "status": "affected",
              "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
              "versionType": "git"
            },
            {
              "lessThan": "5c209299b0113e289e238fa5f2e8f00c59f76060",
              "status": "affected",
              "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
              "versionType": "git"
            },
            {
              "lessThan": "82f6dcea46cf5de65c4ba7283f7c7b34de4a324d",
              "status": "affected",
              "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
              "versionType": "git"
            },
            {
              "lessThan": "240c71a2aea36a1a4210f911a1c32ea88777e8e4",
              "status": "affected",
              "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
              "versionType": "git"
            },
            {
              "lessThan": "88ebadbf0deefdaccdab868b44ff70a0a257f473",
              "status": "affected",
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "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",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.141",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.91",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.33",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.10",
                  "versionStartIncluding": "4.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "4.4",
                  "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",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-53294",
      "date": "2026-07-04",
      "epss": "0.00177",
      "percentile": "0.0743"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-53294\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-06-26T20:17:22.310\",\"lastModified\":\"2026-06-30T14:44:27.313\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"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.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/mailbox/mailbox-test.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"8ea4484d0c2bb4e2152261943fa1a3522654b1c7\",\"lessThan\":\"fc0089f82c3e36060c2c79156bc2018bfb16b56b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8ea4484d0c2bb4e2152261943fa1a3522654b1c7\",\"lessThan\":\"5d4f3d0f64f1016cb78b400a70b67df91fac99b5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8ea4484d0c2bb4e2152261943fa1a3522654b1c7\",\"lessThan\":\"c494a11da45ad7ec9b0ff216c3e3ace351193bb6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8ea4484d0c2bb4e2152261943fa1a3522654b1c7\",\"lessThan\":\"3afca89fae501dbd7421e1777b5b8f033b1d98d0\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8ea4484d0c2bb4e2152261943fa1a3522654b1c7\",\"lessThan\":\"5c209299b0113e289e238fa5f2e8f00c59f76060\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8ea4484d0c2bb4e2152261943fa1a3522654b1c7\",\"lessThan\":\"82f6dcea46cf5de65c4ba7283f7c7b34de4a324d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8ea4484d0c2bb4e2152261943fa1a3522654b1c7\",\"lessThan\":\"240c71a2aea36a1a4210f911a1c32ea88777e8e4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"8ea4484d0c2bb4e2152261943fa1a3522654b1c7\",\"lessThan\":\"88ebadbf0deefdaccdab868b44ff70a0a257f473\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/mailbox/mailbox-test.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.4\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.4\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.258\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.209\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.175\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.141\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.91\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.33\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0.10\",\"lessThanOrEqual\":\"7.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/240c71a2aea36a1a4210f911a1c32ea88777e8e4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3afca89fae501dbd7421e1777b5b8f033b1d98d0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5c209299b0113e289e238fa5f2e8f00c59f76060\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5d4f3d0f64f1016cb78b400a70b67df91fac99b5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/82f6dcea46cf5de65c4ba7283f7c7b34de4a324d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/88ebadbf0deefdaccdab868b44ff70a0a257f473\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c494a11da45ad7ec9b0ff216c3e3ace351193bb6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fc0089f82c3e36060c2c79156bc2018bfb16b56b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}

FKIE_CVE-2026-53294

Vulnerability from fkie_nvd - Published: 2026-06-26 20:17 - Updated: 2026-06-30 14:44

Severity

Summary

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/240c71a2aea36a1a4210f911a1c32ea88777e8e4
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3afca89fae501dbd7421e1777b5b8f033b1d98d0
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5c209299b0113e289e238fa5f2e8f00c59f76060
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5d4f3d0f64f1016cb78b400a70b67df91fac99b5
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/82f6dcea46cf5de65c4ba7283f7c7b34de4a324d
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/88ebadbf0deefdaccdab868b44ff70a0a257f473
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c494a11da45ad7ec9b0ff216c3e3ace351193bb6
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/fc0089f82c3e36060c2c79156bc2018bfb16b56b

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "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": [
            {
              "lessThan": "fc0089f82c3e36060c2c79156bc2018bfb16b56b",
              "status": "affected",
              "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
              "versionType": "git"
            },
            {
              "lessThan": "5d4f3d0f64f1016cb78b400a70b67df91fac99b5",
              "status": "affected",
              "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
              "versionType": "git"
            },
            {
              "lessThan": "c494a11da45ad7ec9b0ff216c3e3ace351193bb6",
              "status": "affected",
              "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
              "versionType": "git"
            },
            {
              "lessThan": "3afca89fae501dbd7421e1777b5b8f033b1d98d0",
              "status": "affected",
              "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
              "versionType": "git"
            },
            {
              "lessThan": "5c209299b0113e289e238fa5f2e8f00c59f76060",
              "status": "affected",
              "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
              "versionType": "git"
            },
            {
              "lessThan": "82f6dcea46cf5de65c4ba7283f7c7b34de4a324d",
              "status": "affected",
              "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
              "versionType": "git"
            },
            {
              "lessThan": "240c71a2aea36a1a4210f911a1c32ea88777e8e4",
              "status": "affected",
              "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
              "versionType": "git"
            },
            {
              "lessThan": "88ebadbf0deefdaccdab868b44ff70a0a257f473",
              "status": "affected",
              "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "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"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-53294",
  "lastModified": "2026-06-30T14:44:27.313",
  "metrics": {},
  "published": "2026-06-26T20:17:22.310",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/240c71a2aea36a1a4210f911a1c32ea88777e8e4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3afca89fae501dbd7421e1777b5b8f033b1d98d0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5c209299b0113e289e238fa5f2e8f00c59f76060"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5d4f3d0f64f1016cb78b400a70b67df91fac99b5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/82f6dcea46cf5de65c4ba7283f7c7b34de4a324d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/88ebadbf0deefdaccdab868b44ff70a0a257f473"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c494a11da45ad7ec9b0ff216c3e3ace351193bb6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fc0089f82c3e36060c2c79156bc2018bfb16b56b"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

GHSA-GRHQ-RQC2-RHJR

Vulnerability from github – Published: 2026-06-26 21:32 – Updated: 2026-06-26 21:32

Details

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.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-53294"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-26T20:17:22Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-grhq-rqc2-rhjr",
  "modified": "2026-06-26T21:32:17Z",
  "published": "2026-06-26T21:32:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53294"
    },
    {
      "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"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

MSRC_CVE-2026-53294

Vulnerability from csaf_microsoft - Published: 2026-06-02 00:00 - Updated: 2026-07-03 01:09

Summary

mailbox: mailbox-test: don't free the reused channel

Notes

Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

CVE-2026-53294

Affected products

Known not affected 1 product

Product	Identifier	Version	Remediation
Unresolved product id: 17084-1		—

References

4 references

URL	Category
https://msrc.microsoft.com/csaf/vex/2026/msrc_cve…	self
https://support.microsoft.com/lifecycle	external
https://www.first.org/cvss	external
https://msrc.microsoft.com/csaf/vex/2026/msrc_cve…	self

JSON

To clipboard

{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2026-53294 mailbox: mailbox-test: don\u0027t free the reused channel - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-53294.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "mailbox: mailbox-test: don\u0027t free the reused channel",
    "tracking": {
      "current_release_date": "2026-07-03T01:09:02.000Z",
      "generator": {
        "date": "2026-07-03T07:14:17.477Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2026-53294",
      "initial_release_date": "2026-06-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-06-28T01:03:58.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2026-06-29T14:49:20.000Z",
          "legacy_version": "2",
          "number": "2",
          "summary": "Information published."
        },
        {
          "date": "2026-07-03T01:09:02.000Z",
          "legacy_version": "3",
          "number": "3",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "17084"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "category": "product_name",
            "name": "azl3 kernel 0:6.6.139.1-1.azl3",
            "product": {
              "name": "azl3 kernel 0:6.6.139.1-1.azl3",
              "product_id": "1"
            }
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 kernel 0:6.6.139.1-1.azl3 as a component of Azure Linux 3.0",
          "product_id": "17084-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "17084"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-53294",
      "flags": [
        {
          "label": "vulnerable_code_not_present",
          "product_ids": [
            "17084-1"
          ]
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Linux",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "known_not_affected": [
          "17084-1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-53294 mailbox: mailbox-test: don\u0027t free the reused channel - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-53294.json"
        }
      ],
      "title": "mailbox: mailbox-test: don\u0027t free the reused channel"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2026-53294 (GCVE-0-2026-53294)

FKIE_CVE-2026-53294

GHSA-GRHQ-RQC2-RHJR

MSRC_CVE-2026-53294

Tags

Sightings

Nomenclature