{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53295", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.396Z", "datePublished": "2026-06-26T19:40:53.670Z", "dateUpdated": "2026-06-26T19:40:53.670Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-26T19:40:53.670Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: add sanity check for channel array\n\nFail gracefully if there is no channel array attached to the mailbox\ncontroller. Otherwise the later dereference will cause an OOPS which\nmight not be seen because mailbox controllers might instantiate very\nearly. Remove the comment explaining the obvious while here."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mailbox/mailbox.c"], "versions": [{"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "5cc3300fab262b26c28bc2fc06df693410c3840b", "status": "affected", "versionType": "git"}, {"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "0f11444271110d9b5bc6316a153c6431abda899c", "status": "affected", "versionType": "git"}, {"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "d44872a569b8fbacde457ff2587a775e5004bb79", "status": "affected", "versionType": "git"}, {"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "14aed0d4e58389cc6a88acf8610b12d3e476272b", "status": "affected", "versionType": "git"}, {"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "6362c4a7d7e21e68cd9aa04df7cde16befba3a4b", "status": "affected", "versionType": "git"}, {"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "9dd7489943324298bb0f385495795a82f1dd6507", "status": "affected", "versionType": "git"}, {"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "37792091ab28ba030fd8d61184c47d4d51294170", "status": "affected", "versionType": "git"}, {"version": "2b6d83e2b8b7de82331a6a1dcd64b51020a6031c", "lessThan": "c1aad75595fb67edc7fda8af249d3b886efa1be9", "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.c"], "versions": [{"version": "3.18", "status": "affected"}, {"version": "0", "lessThan": "3.18", "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": "3.18", "versionEndExcluding": "5.10.258"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "5.15.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.6.141"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.12.91"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/5cc3300fab262b26c28bc2fc06df693410c3840b"}, {"url": "https://git.kernel.org/stable/c/0f11444271110d9b5bc6316a153c6431abda899c"}, {"url": "https://git.kernel.org/stable/c/d44872a569b8fbacde457ff2587a775e5004bb79"}, {"url": "https://git.kernel.org/stable/c/14aed0d4e58389cc6a88acf8610b12d3e476272b"}, {"url": "https://git.kernel.org/stable/c/6362c4a7d7e21e68cd9aa04df7cde16befba3a4b"}, {"url": "https://git.kernel.org/stable/c/9dd7489943324298bb0f385495795a82f1dd6507"}, {"url": "https://git.kernel.org/stable/c/37792091ab28ba030fd8d61184c47d4d51294170"}, {"url": "https://git.kernel.org/stable/c/c1aad75595fb67edc7fda8af249d3b886efa1be9"}], "title": "mailbox: add sanity check for channel array", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: mailbox: add sanity check for channel array", "id": "2493759", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2493759"}, "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-166", "details": ["A flaw was found in the Linux kernel's mailbox component. This vulnerability arises from an insufficient sanity check for the channel array. When a mailbox controller is initialized without an attached channel array, a subsequent operation can lead to a null pointer dereference, causing a kernel crash. This could result in a denial of service for the affected system."], "name": "CVE-2026-53295", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "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-2026-53295\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53295\nhttps://lore.kernel.org/linux-cve-announce/2026062617-CVE-2026-53295-770b@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,5cc3300fab262b26c28bc2fc06df693410c3840b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,0f11444271110d9b5bc6316a153c6431abda899c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,d44872a569b8fbacde457ff2587a775e5004bb79)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,14aed0d4e58389cc6a88acf8610b12d3e476272b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,6362c4a7d7e21e68cd9aa04df7cde16befba3a4b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,9dd7489943324298bb0f385495795a82f1dd6507)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,37792091ab28ba030fd8d61184c47d4d51294170)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b6d83e2b8b7de82331a6a1dcd64b51020a6031c,c1aad75595fb67edc7fda8af249d3b886efa1be9)"}}], "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": "3.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,3.18)"}}, {"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": "[7.1,*]"}}], "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": "2026-06-26T22:30:04.062915+00:00", "updated": "2026-06-29T15:30:05.218907+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}