{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53222", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.392Z", "datePublished": "2026-06-25T08:39:23.934Z", "dateUpdated": "2026-06-25T08:39:23.934Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-25T08:39:23.934Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nptp: ocp: fix resource freeing order\n\nCommit a60fc3294a37 (\"ptp: rework ptp_clock_unregister() to disable\nevents\") added a call to ptp_disable_all_events() which changes the\nconfiguration of pins if they support EXTTS events. In ptp_ocp_detach()\npins resources are freed before ptp_clock_unregister() and it leads to\nuse-after-free during driver removal. Fix it by changing the order of\nfree/unregister calls. To avoid irq handler running on the other core\nwhile ptp device unregistering, call synchronize_irq() after HW is\nconfigured to stop producing irqs and no irqs are in-flight."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/ptp/ptp_ocp.c"], "versions": [{"version": "a60fc3294a377204664b5484e4a487fa124155da", "lessThan": "aa03698bb28d3be5ee180adb185395054b342b04", "status": "affected", "versionType": "git"}, {"version": "a60fc3294a377204664b5484e4a487fa124155da", "lessThan": "627366c51145a07f675b1800fb5ea2ec960bd900", "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/ptp/ptp_ocp.c"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.13", "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": "6.18", "versionEndExcluding": "7.0.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/aa03698bb28d3be5ee180adb185395054b342b04"}, {"url": "https://git.kernel.org/stable/c/627366c51145a07f675b1800fb5ea2ec960bd900"}], "title": "ptp: ocp: fix resource freeing order", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{}

{"created": "2026-06-25T11:30:06.464449+00:00", "title": "Use-After-Free in Linux Kernel PTP OC Driver During Removal", "updated": "2026-06-25T11:30:06.464455+00:00", "vendors": [], "weaknesses": ["CWE-416"]}