Vulnerability-Lookup

GHSA-H624-59G3-97R5

Vulnerability from github – Published: 2026-06-26 21:32 – Updated: 2026-07-08 06:31

Details

In the Linux kernel, the following vulnerability has been resolved:

mailbox: mailbox-test: free channels on probe error

On probe error, free the previously obtained channels. This not only prevents a leak, but also UAF scenarios because the client structure will be removed nonetheless because it was allocated with devm.

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-53296"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-26T20:17:22Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: mailbox-test: free channels on probe error\n\nOn probe error, free the previously obtained channels. This not only\nprevents a leak, but also UAF scenarios because the client structure\nwill be removed nonetheless because it was allocated with devm.",
  "id": "GHSA-h624-59g3-97r5",
  "modified": "2026-07-08T06:31:35Z",
  "published": "2026-06-26T21:32:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53296"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/02beb178e2e159daeb8f992d7abb16a37da31664"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0ad8c4a03a358de7811ba1ab8cbd1fe76ad0ff6b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/15c4cc3850cfe1b973eb7b63c02314b267f06a64"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/187069ccc3474516af32350e20d7e449160fa6de"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6c6ce2ccb4fcf1617fec83f91b21aa0265f30701"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/742001919653e7313b4e91780c5d108be1692365"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/81c9e7e4030e71391ab479c4c6e17b64802577aa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c02053a9055d5fdfd32432287cca8958db1d5bc5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-53296 (GCVE-0-2026-53296)

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

Title

mailbox: mailbox-test: free channels on probe error

Summary

In the Linux kernel, the following vulnerability has been resolved: mailbox: mailbox-test: free channels on probe error On probe error, free the previously obtained channels. This not only prevents a leak, but also UAF scenarios because the client structure will be removed nonetheless because it was allocated with devm.

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/0ad8c4a03a358de78…
https://git.kernel.org/stable/c/15c4cc3850cfe1b97…
https://git.kernel.org/stable/c/187069ccc3474516a…
https://git.kernel.org/stable/c/81c9e7e4030e71391…
https://git.kernel.org/stable/c/6c6ce2ccb4fcf1617…
https://git.kernel.org/stable/c/742001919653e7313…
https://git.kernel.org/stable/c/02beb178e2e159dae…
https://git.kernel.org/stable/c/c02053a9055d5fdfd…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < 0ad8c4a03a358de7811ba1ab8cbd1fe76ad0ff6b (git) Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < 15c4cc3850cfe1b973eb7b63c02314b267f06a64 (git) Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < 187069ccc3474516af32350e20d7e449160fa6de (git) Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < 81c9e7e4030e71391ab479c4c6e17b64802577aa (git) Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < 6c6ce2ccb4fcf1617fec83f91b21aa0265f30701 (git) Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < 742001919653e7313b4e91780c5d108be1692365 (git) Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < 02beb178e2e159daeb8f992d7abb16a37da31664 (git) Affected: 8ea4484d0c2bb4e2152261943fa1a3522654b1c7 , < c02053a9055d5fdfd32432287cca8958db1d5bc5 (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)

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JSON

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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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              "versionType": "git"
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            },
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            },
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          "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": [
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          "nodes": [
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                },
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: mailbox-test: free channels on probe error\n\nOn probe error, free the previously obtained channels. This not only\nprevents a leak, but also UAF scenarios because the client structure\nwill be removed nonetheless because it was allocated with devm."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-26T19:40:54.341Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "cveId": "CVE-2026-53296",
    "datePublished": "2026-06-26T19:40:54.341Z",
    "dateReserved": "2026-06-09T07:44:35.396Z",
    "dateUpdated": "2026-06-26T19:40:54.341Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

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

GHSA-H624-59G3-97R5

CVE-2026-53296 (GCVE-0-2026-53296)

Tags

Sightings

Nomenclature