CVE-2026-72308

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72308", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.918Z", "datePublished": "2026-08-15T05:55:25.260Z", "dateUpdated": "2026-08-23T12:47:14.564Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-23T12:47:14.564Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmlxsw: fix refcount leak in mlxsw_sp_port_lag_join()\n\nWhen mlxsw_sp_port_lag_index_get() fails, mlxsw_sp_port_lag_join()\nreturns an error without releasing the lag reference obtained by\nthe earlier mlxsw_sp_lag_get(). All other error paths in the\nfunction jump to the cleanup label that ends with\nmlxsw_sp_lag_put(), so this is a single missed release.\n\nFix the leak by replacing the bare 'return err' with a goto to the\nexisting error cleanup label, which will drop the reference safely."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/mellanox/mlxsw/spectrum.c"], "versions": [{"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "lessThan": "3fbeaa8ecd144ad593f9fa1ab4b40a780ad3700b", "status": "affected", "versionType": "git"}, {"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "lessThan": "99ff5b0083eae6f774360c4ea6874604e6c9b553", "status": "affected", "versionType": "git"}, {"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "lessThan": "9bf2d6eea26a226f8ebab7baea6f2b018f914560", "status": "affected", "versionType": "git"}, {"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "lessThan": "8b3350eacd9df0597bfe36a594df7b9def0b3edf", "status": "affected", "versionType": "git"}, {"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "lessThan": "1cf8a1af42b1f12a30b7abd34fe4fc23b3170e7e", "status": "affected", "versionType": "git"}, {"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "lessThan": "2d8b3c3e129973a51ae924bdcf6993a76b828814", "status": "affected", "versionType": "git"}, {"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "lessThan": "cab468c3c03f4bcd7530ce2783a4140da14efb7b", "status": "affected", "versionType": "git"}, {"version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "lessThan": "41c8c1d65b32beacd8d916a22457b4f6e47f45af", "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/mellanox/mlxsw/spectrum.c"], "versions": [{"version": "4.5", "status": "affected"}, {"version": "0", "lessThan": "4.5", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.266", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.217", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.184", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "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": "4.5", "versionEndExcluding": "5.10.266"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "5.15.217"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "6.1.184"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.5", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/3fbeaa8ecd144ad593f9fa1ab4b40a780ad3700b"}, {"url": "https://git.kernel.org/stable/c/99ff5b0083eae6f774360c4ea6874604e6c9b553"}, {"url": "https://git.kernel.org/stable/c/9bf2d6eea26a226f8ebab7baea6f2b018f914560"}, {"url": "https://git.kernel.org/stable/c/8b3350eacd9df0597bfe36a594df7b9def0b3edf"}, {"url": "https://git.kernel.org/stable/c/1cf8a1af42b1f12a30b7abd34fe4fc23b3170e7e"}, {"url": "https://git.kernel.org/stable/c/2d8b3c3e129973a51ae924bdcf6993a76b828814"}, {"url": "https://git.kernel.org/stable/c/cab468c3c03f4bcd7530ce2783a4140da14efb7b"}, {"url": "https://git.kernel.org/stable/c/41c8c1d65b32beacd8d916a22457b4f6e47f45af"}], "title": "mlxsw: fix refcount leak in mlxsw_sp_port_lag_join()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/mellanox/mlxsw/spectrum.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "3fbeaa8ecd144ad593f9fa1ab4b40a780ad3700b", "status": "affected", "version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "versionType": "git"}, {"lessThan": "99ff5b0083eae6f774360c4ea6874604e6c9b553", "status": "affected", "version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "versionType": "git"}, {"lessThan": "9bf2d6eea26a226f8ebab7baea6f2b018f914560", "status": "affected", "version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "versionType": "git"}, {"lessThan": "8b3350eacd9df0597bfe36a594df7b9def0b3edf", "status": "affected", "version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "versionType": "git"}, {"lessThan": "1cf8a1af42b1f12a30b7abd34fe4fc23b3170e7e", "status": "affected", "version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "versionType": "git"}, {"lessThan": "2d8b3c3e129973a51ae924bdcf6993a76b828814", "status": "affected", "version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "versionType": "git"}, {"lessThan": "cab468c3c03f4bcd7530ce2783a4140da14efb7b", "status": "affected", "version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "versionType": "git"}, {"lessThan": "41c8c1d65b32beacd8d916a22457b4f6e47f45af", "status": "affected", "version": "0d65fc13042fce6a2d6de58ff0dc9531e8523c07", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/mellanox/mlxsw/spectrum.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.5"}, {"lessThan": "4.5", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.266", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.217", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.184", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "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\nmlxsw: fix refcount leak in mlxsw_sp_port_lag_join()\n\nWhen mlxsw_sp_port_lag_index_get() fails, mlxsw_sp_port_lag_join()\nreturns an error without releasing the lag reference obtained by\nthe earlier mlxsw_sp_lag_get(). All other error paths in the\nfunction jump to the cleanup label that ends with\nmlxsw_sp_lag_put(), so this is a single missed release.\n\nFix the leak by replacing the bare 'return err' with a goto to the\nexisting error cleanup label, which will drop the reference safely."}], "id": "CVE-2026-72308", "lastModified": "2026-08-23T13:16:43.340", "metrics": {}, "published": "2026-08-15T06:22:03.570", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1cf8a1af42b1f12a30b7abd34fe4fc23b3170e7e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2d8b3c3e129973a51ae924bdcf6993a76b828814"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3fbeaa8ecd144ad593f9fa1ab4b40a780ad3700b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/41c8c1d65b32beacd8d916a22457b4f6e47f45af"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8b3350eacd9df0597bfe36a594df7b9def0b3edf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/99ff5b0083eae6f774360c4ea6874604e6c9b553"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9bf2d6eea26a226f8ebab7baea6f2b018f914560"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cab468c3c03f4bcd7530ce2783a4140da14efb7b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: mlxsw: fix refcount leak in mlxsw_sp_port_lag_join()", "id": "2516246", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516246"}, "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-911", "details": ["A flaw was found in the `mlxsw` driver of the Linux kernel. This vulnerability occurs when the `mlxsw_sp_port_lag_join()` function fails to properly release a network resource reference, leading to a reference count leak. Over time, this leak could exhaust system resources, potentially resulting in a denial of service (DoS) for affected systems."], "name": "CVE-2026-72308", "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": "Out of support scope", "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": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72308\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72308\nhttps://lore.kernel.org/linux-cve-announce/2026081504-CVE-2026-72308-c2fb@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0d65fc13042fce6a2d6de58ff0dc9531e8523c07,8b3350eacd9df0597bfe36a594df7b9def0b3edf)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0d65fc13042fce6a2d6de58ff0dc9531e8523c07,1cf8a1af42b1f12a30b7abd34fe4fc23b3170e7e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0d65fc13042fce6a2d6de58ff0dc9531e8523c07,2d8b3c3e129973a51ae924bdcf6993a76b828814)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0d65fc13042fce6a2d6de58ff0dc9531e8523c07,cab468c3c03f4bcd7530ce2783a4140da14efb7b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[0d65fc13042fce6a2d6de58ff0dc9531e8523c07,41c8c1d65b32beacd8d916a22457b4f6e47f45af)"}}], "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": "4.5"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.145,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.97,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.40,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1.5,7.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "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": "2026-08-15T10:30:05.218704+00:00", "updated": "2026-08-18T04:45:04.395677+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}