CVE-2026-68333

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68333", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.383Z", "datePublished": "2026-08-10T12:03:09.524Z", "dateUpdated": "2026-08-19T16:33:30.627Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-19T16:33:30.627Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-switch: put MAC endpoint device on disconnect\n\nfsl_mc_get_endpoint() returns the MAC endpoint device with a reference\ntaken through device_find_child(). The switch port connect path stores\nthat device in mac->mc_dev and keeps it for the lifetime of the connected\nMAC object.\n\nHowever, the disconnect path only closes the MAC and frees the dpaa2_mac\nobject. It does not drop the endpoint device reference stored in\nmac->mc_dev, so every successful connect leaks that device reference when\nthe MAC is later disconnected.\n\nDrop the endpoint device reference before freeing the dpaa2_mac object."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c"], "versions": [{"version": "84cba72956fddf29ba666f885c39ed147024c125", "lessThan": "196f7301537814bef0f5915f87cd73d6d1235c19", "status": "affected", "versionType": "git"}, {"version": "84cba72956fddf29ba666f885c39ed147024c125", "lessThan": "0e9a6811eb6198ab17538cd01fa155d133b238ed", "status": "affected", "versionType": "git"}, {"version": "84cba72956fddf29ba666f885c39ed147024c125", "lessThan": "1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38", "status": "affected", "versionType": "git"}, {"version": "84cba72956fddf29ba666f885c39ed147024c125", "lessThan": "680eecc850d36a280df9780496bc603fec17b2d6", "status": "affected", "versionType": "git"}, {"version": "84cba72956fddf29ba666f885c39ed147024c125", "lessThan": "26ac2d3602347f0377fbcd5214bc28a9d735ae68", "status": "affected", "versionType": "git"}, {"version": "84cba72956fddf29ba666f885c39ed147024c125", "lessThan": "c27694ff6748e08fcd2fdba89018439d75b8198f", "status": "affected", "versionType": "git"}, {"version": "84cba72956fddf29ba666f885c39ed147024c125", "lessThan": "4c1eabbef7a1707635652e956e39db1269c3af2b", "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/net/ethernet/freescale/dpaa2/dpaa2-switch.c"], "versions": [{"version": "5.15", "status": "affected"}, {"version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.216", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.183", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "5.15", "versionEndExcluding": "5.15.216"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.1.183"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/196f7301537814bef0f5915f87cd73d6d1235c19"}, {"url": "https://git.kernel.org/stable/c/0e9a6811eb6198ab17538cd01fa155d133b238ed"}, {"url": "https://git.kernel.org/stable/c/1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38"}, {"url": "https://git.kernel.org/stable/c/680eecc850d36a280df9780496bc603fec17b2d6"}, {"url": "https://git.kernel.org/stable/c/26ac2d3602347f0377fbcd5214bc28a9d735ae68"}, {"url": "https://git.kernel.org/stable/c/c27694ff6748e08fcd2fdba89018439d75b8198f"}, {"url": "https://git.kernel.org/stable/c/4c1eabbef7a1707635652e956e39db1269c3af2b"}], "title": "dpaa2-switch: put MAC endpoint device on disconnect", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "196f7301537814bef0f5915f87cd73d6d1235c19", "status": "affected", "version": "84cba72956fddf29ba666f885c39ed147024c125", "versionType": "git"}, {"lessThan": "0e9a6811eb6198ab17538cd01fa155d133b238ed", "status": "affected", "version": "84cba72956fddf29ba666f885c39ed147024c125", "versionType": "git"}, {"lessThan": "1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38", "status": "affected", "version": "84cba72956fddf29ba666f885c39ed147024c125", "versionType": "git"}, {"lessThan": "680eecc850d36a280df9780496bc603fec17b2d6", "status": "affected", "version": "84cba72956fddf29ba666f885c39ed147024c125", "versionType": "git"}, {"lessThan": "26ac2d3602347f0377fbcd5214bc28a9d735ae68", "status": "affected", "version": "84cba72956fddf29ba666f885c39ed147024c125", "versionType": "git"}, {"lessThan": "c27694ff6748e08fcd2fdba89018439d75b8198f", "status": "affected", "version": "84cba72956fddf29ba666f885c39ed147024c125", "versionType": "git"}, {"lessThan": "4c1eabbef7a1707635652e956e39db1269c3af2b", "status": "affected", "version": "84cba72956fddf29ba666f885c39ed147024c125", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.15"}, {"lessThan": "5.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.216", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.183", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-switch: put MAC endpoint device on disconnect\n\nfsl_mc_get_endpoint() returns the MAC endpoint device with a reference\ntaken through device_find_child(). The switch port connect path stores\nthat device in mac->mc_dev and keeps it for the lifetime of the connected\nMAC object.\n\nHowever, the disconnect path only closes the MAC and frees the dpaa2_mac\nobject. It does not drop the endpoint device reference stored in\nmac->mc_dev, so every successful connect leaks that device reference when\nthe MAC is later disconnected.\n\nDrop the endpoint device reference before freeing the dpaa2_mac object."}], "id": "CVE-2026-68333", "lastModified": "2026-08-19T17:20:43.370", "metrics": {}, "published": "2026-08-10T13:20:23.637", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0e9a6811eb6198ab17538cd01fa155d133b238ed"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/196f7301537814bef0f5915f87cd73d6d1235c19"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/26ac2d3602347f0377fbcd5214bc28a9d735ae68"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4c1eabbef7a1707635652e956e39db1269c3af2b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/680eecc850d36a280df9780496bc603fec17b2d6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c27694ff6748e08fcd2fdba89018439d75b8198f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: dpaa2-switch device reference leak on MAC disconnect", "id": "2513195", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513195"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndpaa2-switch: put MAC endpoint device on disconnect\nfsl_mc_get_endpoint() returns the MAC endpoint device with a reference\ntaken through device_find_child(). The switch port connect path stores\nthat device in mac->mc_dev and keeps it for the lifetime of the connected\nMAC object.\nHowever, the disconnect path only closes the MAC and frees the dpaa2_mac\nobject. It does not drop the endpoint device reference stored in\nmac->mc_dev, so every successful connect leaks that device reference when\nthe MAC is later disconnected.\nDrop the endpoint device reference before freeing the dpaa2_mac object.", "A flaw was found in the `dpaa2-switch` component of the Linux kernel. When a MAC (Media Access Control) object is disconnected, the system fails to release a reference to the associated MAC endpoint device. This oversight causes a device reference to leak with every successful connection and subsequent disconnection, potentially leading to resource exhaustion over time."], "name": "CVE-2026-68333", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T12:03:09Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68333\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68333\nhttps://git.kernel.org/stable/c/1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38\nhttps://git.kernel.org/stable/c/26ac2d3602347f0377fbcd5214bc28a9d735ae68\nhttps://git.kernel.org/stable/c/4c1eabbef7a1707635652e956e39db1269c3af2b\nhttps://git.kernel.org/stable/c/680eecc850d36a280df9780496bc603fec17b2d6\nhttps://git.kernel.org/stable/c/c27694ff6748e08fcd2fdba89018439d75b8198f"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[84cba72956fddf29ba666f885c39ed147024c125,1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[84cba72956fddf29ba666f885c39ed147024c125,680eecc850d36a280df9780496bc603fec17b2d6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[84cba72956fddf29ba666f885c39ed147024c125,26ac2d3602347f0377fbcd5214bc28a9d735ae68)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[84cba72956fddf29ba666f885c39ed147024c125,c27694ff6748e08fcd2fdba89018439d75b8198f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[84cba72956fddf29ba666f885c39ed147024c125,4c1eabbef7a1707635652e956e39db1269c3af2b)"}}], "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": "[5.15,5.15]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.15)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc5,*]"}}], "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": "2026-08-10T17:00:03.762879+00:00", "updated": "2026-08-13T06:30:05.409812+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}