{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53296", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.396Z", "datePublished": "2026-06-26T19:40:54.341Z", "dateUpdated": "2026-06-26T19:40:54.341Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-26T19:40:54.341Z"}, "descriptions": [{"lang": "en", "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."}], "affected": [{"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": "0ad8c4a03a358de7811ba1ab8cbd1fe76ad0ff6b", "status": "affected", "versionType": "git"}, {"version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7", "lessThan": "15c4cc3850cfe1b973eb7b63c02314b267f06a64", "status": "affected", "versionType": "git"}, {"version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7", "lessThan": "187069ccc3474516af32350e20d7e449160fa6de", "status": "affected", "versionType": "git"}, {"version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7", "lessThan": "81c9e7e4030e71391ab479c4c6e17b64802577aa", "status": "affected", "versionType": "git"}, {"version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7", "lessThan": "6c6ce2ccb4fcf1617fec83f91b21aa0265f30701", "status": "affected", "versionType": "git"}, {"version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7", "lessThan": "742001919653e7313b4e91780c5d108be1692365", "status": "affected", "versionType": "git"}, {"version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7", "lessThan": "02beb178e2e159daeb8f992d7abb16a37da31664", "status": "affected", "versionType": "git"}, {"version": "8ea4484d0c2bb4e2152261943fa1a3522654b1c7", "lessThan": "c02053a9055d5fdfd32432287cca8958db1d5bc5", "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"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "5.10.258"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "5.15.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "6.6.141"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "6.12.91"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0ad8c4a03a358de7811ba1ab8cbd1fe76ad0ff6b"}, {"url": "https://git.kernel.org/stable/c/15c4cc3850cfe1b973eb7b63c02314b267f06a64"}, {"url": "https://git.kernel.org/stable/c/187069ccc3474516af32350e20d7e449160fa6de"}, {"url": "https://git.kernel.org/stable/c/81c9e7e4030e71391ab479c4c6e17b64802577aa"}, {"url": "https://git.kernel.org/stable/c/6c6ce2ccb4fcf1617fec83f91b21aa0265f30701"}, {"url": "https://git.kernel.org/stable/c/742001919653e7313b4e91780c5d108be1692365"}, {"url": "https://git.kernel.org/stable/c/02beb178e2e159daeb8f992d7abb16a37da31664"}, {"url": "https://git.kernel.org/stable/c/c02053a9055d5fdfd32432287cca8958db1d5bc5"}], "title": "mailbox: mailbox-test: free channels on probe error", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{}

{"bugzilla": {"description": "kernel: mailbox: mailbox-test: free channels on probe error", "id": "2493734", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2493734"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["A flaw was found in the Linux kernel, specifically within the mailbox-test component. This vulnerability occurs when channels are not correctly released during a probe error, leading to a memory leak and a Use-After-Free (UAF) condition. A Use-After-Free (UAF) is a memory corruption vulnerability that allows an attacker to potentially execute arbitrary code or cause a denial of service by manipulating freed memory. This issue could be exploited by a local attacker."], "name": "CVE-2026-53296", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53296\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53296\nhttps://lore.kernel.org/linux-cve-announce/2026062618-CVE-2026-53296-fd81@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8ea4484d0c2bb4e2152261943fa1a3522654b1c7,0ad8c4a03a358de7811ba1ab8cbd1fe76ad0ff6b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8ea4484d0c2bb4e2152261943fa1a3522654b1c7,15c4cc3850cfe1b973eb7b63c02314b267f06a64)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8ea4484d0c2bb4e2152261943fa1a3522654b1c7,187069ccc3474516af32350e20d7e449160fa6de)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8ea4484d0c2bb4e2152261943fa1a3522654b1c7,81c9e7e4030e71391ab479c4c6e17b64802577aa)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8ea4484d0c2bb4e2152261943fa1a3522654b1c7,6c6ce2ccb4fcf1617fec83f91b21aa0265f30701)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8ea4484d0c2bb4e2152261943fa1a3522654b1c7,742001919653e7313b4e91780c5d108be1692365)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8ea4484d0c2bb4e2152261943fa1a3522654b1c7,02beb178e2e159daeb8f992d7abb16a37da31664)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8ea4484d0c2bb4e2152261943fa1a3522654b1c7,c02053a9055d5fdfd32432287cca8958db1d5bc5)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.4,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.4)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.10.258,5.10.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.15.209,5.15.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.175,6.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.141,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.91,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.33,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0.10,7.0.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-06-26T23:15:08.928120+00:00", "updated": "2026-06-29T16:30:17.111443+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}