CVE-2026-53294

🗓️ 26 Jun 2026 19:40:52Reported by LinuxType

Linux kernel mailbox-test fix: avoid double free by not freeing reused channel aliased RX to TX.

Reporter	Title	Published	Views	Family All 5
ATTACKERKB	CVE-2026-53294	26 Jun 202619:40	–	attackerkb
Cvelist	CVE-2026-53294 mailbox: mailbox-test: don't free the reused channel	26 Jun 202619:40	–	cvelist
EUVD	EUVD-2026-39899	26 Jun 202619:40	–	euvd
NVD	CVE-2026-53294	26 Jun 202620:17	–	nvd
Positive Technologies	PT-2026-52933	26 Jun 202600:00	–	ptsecurity

Vulners

CNA

Node

linux linux_kernelRange4.4–5.10.258

linux linux_kernelRange5.11.0–5.15.209

linux linux_kernelRange5.16.0–6.1.175

linux linux_kernelRange6.2.0–6.6.141

linux linux_kernelRange6.7.0–6.12.91

linux linux_kernelRange6.13.0–6.18.33

linux linux_kernelRange6.19.0–7.0.10

linux linux_kernelRange7.1.0≥

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/mailbox/mailbox-test.c"
    ],
    "versions": [
      {
        "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
        "lessThan": "fc0089f82c3e36060c2c79156bc2018bfb16b56b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
        "lessThan": "5d4f3d0f64f1016cb78b400a70b67df91fac99b5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
        "lessThan": "c494a11da45ad7ec9b0ff216c3e3ace351193bb6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
        "lessThan": "3afca89fae501dbd7421e1777b5b8f033b1d98d0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
        "lessThan": "5c209299b0113e289e238fa5f2e8f00c59f76060",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
        "lessThan": "82f6dcea46cf5de65c4ba7283f7c7b34de4a324d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
        "lessThan": "240c71a2aea36a1a4210f911a1c32ea88777e8e4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7",
        "lessThan": "88ebadbf0deefdaccdab868b44ff70a0a257f473",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/mailbox/mailbox-test.c"
    ],
    "versions": [
      {
        "version": "4.4",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.4",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.258",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.209",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.175",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.141",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.91",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.33",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.10",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/c494a11da45ad7ec9b0ff216c3e3ace351193bb6
git	www.git.kernel.org/stable/c/240c71a2aea36a1a4210f911a1c32ea88777e8e4
git	www.git.kernel.org/stable/c/fc0089f82c3e36060c2c79156bc2018bfb16b56b
git	www.git.kernel.org/stable/c/5d4f3d0f64f1016cb78b400a70b67df91fac99b5
git	www.git.kernel.org/stable/c/82f6dcea46cf5de65c4ba7283f7c7b34de4a324d
git	www.git.kernel.org/stable/c/3afca89fae501dbd7421e1777b5b8f033b1d98d0
git	www.git.kernel.org/stable/c/5c209299b0113e289e238fa5f2e8f00c59f76060
git	www.git.kernel.org/stable/c/88ebadbf0deefdaccdab868b44ff70a0a257f473

26 Jun 2026 20:17Current

5.8Medium risk

Vulners AI Score5.8