{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68301", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.380Z", "datePublished": "2026-08-10T12:02:35.155Z", "dateUpdated": "2026-08-10T12:02:35.155Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-10T12:02:35.155Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hsr: fix memory leak on slave unregistration by removing synced VLANs\n\nWhen an HSR master device is brought UP, it auto-adds VLAN 0 via\nvlan_vid0_add(), which propagates VID 0 to its slave devices (slave A and B).\n\nIf a slave device is later unregistered while HSR is active (e.g., during\nnetns cleanup or interface destruction), hsr_del_port() is called to\ndetach the slave port from the HSR master. However, hsr_del_port() currently\ndoes not delete the VLAN IDs that were synced to the slave device by HSR.\n\nAs a result, the slave device retains a refcount on VID 0 (and any other\nsynced VLANs). When the slave device is destroyed, its vlan_info /\nvlan_vid_info structure remains allocated, leading to a memory leak.\n\nFix this by calling vlan_vids_del_by_dev(port->dev, master->dev) in\nhsr_del_port() before unlinking slave A or slave B ports, matching the\npropagation logic in hsr_ndo_vlan_rx_add_vid() / hsr_ndo_vlan_rx_kill_vid()\nand the cleanup behavior in bonding and team drivers."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/hsr/hsr_slave.c"], "versions": [{"version": "72dbae1f2f2159395089405c6c54632f2613f1be", "lessThan": "f72c312af6c7897ab0f8a2b5a63f917a207a4143", "status": "affected", "versionType": "git"}, {"version": "c707d2c5541d2bb94131968ad5dfeb06427a1dba", "lessThan": "21d48408479a17eb65568a765930adea37e4d804", "status": "affected", "versionType": "git"}, {"version": "1a8a63a5305e95519de6f941922dfcd8179f82e5", "lessThan": "b5ded444621b6180df9f3d4e07045fc1fc1e8cd9", "status": "affected", "versionType": "git"}, {"version": "1a8a63a5305e95519de6f941922dfcd8179f82e5", "lessThan": "ae995b8002d3af134560a706c0e111a89e26317c", "status": "affected", "versionType": "git"}, {"version": "1a8a63a5305e95519de6f941922dfcd8179f82e5", "lessThan": "dcf15eaf5641812f1cfc5e96537380132a7da89d", "status": "affected", "versionType": "git"}, {"version": "1100242709d5644856131a9dd25d32672ebe7357", "status": "affected", "versionType": "git"}, {"version": "a2accc07bdcfb0c7ab2cacdca6a1fe8267816efa", "status": "affected", "versionType": "git"}, {"version": "6.6.107", "lessThan": "6.6.148", "status": "affected", "versionType": "semver"}, {"version": "6.12.48", "lessThan": "6.12.101", "status": "affected", "versionType": "semver"}, {"version": "5.15.194", "lessThan": "5.16", "status": "affected", "versionType": "semver"}, {"version": "6.1.153", "lessThan": "6.2", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/hsr/hsr_slave.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "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-rc5", "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": "6.6.107", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.48", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.2-rc5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.194"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.153"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f72c312af6c7897ab0f8a2b5a63f917a207a4143"}, {"url": "https://git.kernel.org/stable/c/21d48408479a17eb65568a765930adea37e4d804"}, {"url": "https://git.kernel.org/stable/c/b5ded444621b6180df9f3d4e07045fc1fc1e8cd9"}, {"url": "https://git.kernel.org/stable/c/ae995b8002d3af134560a706c0e111a89e26317c"}, {"url": "https://git.kernel.org/stable/c/dcf15eaf5641812f1cfc5e96537380132a7da89d"}], "title": "net: hsr: fix memory leak on slave unregistration by removing synced VLANs", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[72dbae1f2f2159395089405c6c54632f2613f1be,f72c312af6c7897ab0f8a2b5a63f917a207a4143)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c707d2c5541d2bb94131968ad5dfeb06427a1dba,21d48408479a17eb65568a765930adea37e4d804)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1a8a63a5305e95519de6f941922dfcd8179f82e5,b5ded444621b6180df9f3d4e07045fc1fc1e8cd9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1a8a63a5305e95519de6f941922dfcd8179f82e5,ae995b8002d3af134560a706c0e111a89e26317c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1a8a63a5305e95519de6f941922dfcd8179f82e5,dcf15eaf5641812f1cfc5e96537380132a7da89d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "1100242709d5644856131a9dd25d32672ebe7357"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "a2accc07bdcfb0c7ab2cacdca6a1fe8267816efa"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.107,6.6.148)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.12.48,6.12.101)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[5.15.194,5.16)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[6.1.153,6.2)"}}], "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": "6.13"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.13)"}}, {"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": "[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": "2026-08-10T15:15:04.692793+00:00", "updated": "2026-08-10T21:00:03.943645+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-401"]}