{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98948", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.382Z", "datePublished": "2026-10-23T12:19:08.043Z", "dateUpdated": "2026-10-23T12:19:08.043Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-23T12:19:08.043Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmlxsw: spectrum_flower: Fix port range register leak in tmplt_create()\n\nmlxsw_sp_flower_tmplt_create() parses a flow_cls_offload template\ninto a stack-local struct mlxsw_sp_acl_rule_info purely to compute\nrulei.values.elusage. Parsing can acquire port range registers via\nmlxsw_sp_flower_parse_ports_range(), but since this rulei never goes\nthrough mlxsw_sp_acl_rulei_destroy(), those registers were never\nreleased, including through chain template deletion.\n\nFactor out of mlxsw_sp_acl_rulei_destroy() the code to actually\nrelease the necessary resources and call from\nmlxsw_sp_flower_tmplt_create() to plug the leak.\n\nThe issue was found during a review of Wentao Liang's patch referenced\nbelow."}], "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.h", "drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c", "drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c"], "versions": [{"version": "fe22f7410527c2077223b5fd0fc0458db912f0db", "lessThan": "41ad5bcf0219aaebf8ffb052c5e8177479330cde", "status": "affected", "versionType": "git"}, {"version": "fe22f7410527c2077223b5fd0fc0458db912f0db", "lessThan": "c8e934287debb29c6ded86b21e49fc72e186d15e", "status": "affected", "versionType": "git"}, {"version": "fe22f7410527c2077223b5fd0fc0458db912f0db", "lessThan": "3938430f0237c59ca08d6a366e7657b2b7f8d0bb", "status": "affected", "versionType": "git"}, {"version": "fe22f7410527c2077223b5fd0fc0458db912f0db", "lessThan": "4eaf1285b5c1e42f80e47f9fe0d391e70418db02", "status": "affected", "versionType": "git"}, {"version": "fe22f7410527c2077223b5fd0fc0458db912f0db", "lessThan": "7ea07afb230f1342ab0f9365edd0aae137f425d3", "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.h", "drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c", "drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c"], "versions": [{"version": "6.6", "status": "affected"}, {"version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.113", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.11", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.12.113"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.18.57"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "7.2.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/41ad5bcf0219aaebf8ffb052c5e8177479330cde"}, {"url": "https://git.kernel.org/stable/c/c8e934287debb29c6ded86b21e49fc72e186d15e"}, {"url": "https://git.kernel.org/stable/c/3938430f0237c59ca08d6a366e7657b2b7f8d0bb"}, {"url": "https://git.kernel.org/stable/c/4eaf1285b5c1e42f80e47f9fe0d391e70418db02"}, {"url": "https://git.kernel.org/stable/c/7ea07afb230f1342ab0f9365edd0aae137f425d3"}], "title": "mlxsw: spectrum_flower: Fix port range register leak in tmplt_create()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/mellanox/mlxsw/spectrum.h", "drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c", "drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "41ad5bcf0219aaebf8ffb052c5e8177479330cde", "status": "affected", "version": "fe22f7410527c2077223b5fd0fc0458db912f0db", "versionType": "git"}, {"lessThan": "c8e934287debb29c6ded86b21e49fc72e186d15e", "status": "affected", "version": "fe22f7410527c2077223b5fd0fc0458db912f0db", "versionType": "git"}, {"lessThan": "3938430f0237c59ca08d6a366e7657b2b7f8d0bb", "status": "affected", "version": "fe22f7410527c2077223b5fd0fc0458db912f0db", "versionType": "git"}, {"lessThan": "4eaf1285b5c1e42f80e47f9fe0d391e70418db02", "status": "affected", "version": "fe22f7410527c2077223b5fd0fc0458db912f0db", "versionType": "git"}, {"lessThan": "7ea07afb230f1342ab0f9365edd0aae137f425d3", "status": "affected", "version": "fe22f7410527c2077223b5fd0fc0458db912f0db", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/mellanox/mlxsw/spectrum.h", "drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c", "drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.6"}, {"lessThan": "6.6", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.113", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.57", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.11", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "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: spectrum_flower: Fix port range register leak in tmplt_create()\n\nmlxsw_sp_flower_tmplt_create() parses a flow_cls_offload template\ninto a stack-local struct mlxsw_sp_acl_rule_info purely to compute\nrulei.values.elusage. Parsing can acquire port range registers via\nmlxsw_sp_flower_parse_ports_range(), but since this rulei never goes\nthrough mlxsw_sp_acl_rulei_destroy(), those registers were never\nreleased, including through chain template deletion.\n\nFactor out of mlxsw_sp_acl_rulei_destroy() the code to actually\nrelease the necessary resources and call from\nmlxsw_sp_flower_tmplt_create() to plug the leak.\n\nThe issue was found during a review of Wentao Liang's patch referenced\nbelow."}], "id": "CVE-2026-98948", "lastModified": "2026-10-23T13:17:15.893", "metrics": {}, "published": "2026-10-23T13:17:15.893", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3938430f0237c59ca08d6a366e7657b2b7f8d0bb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/41ad5bcf0219aaebf8ffb052c5e8177479330cde"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4eaf1285b5c1e42f80e47f9fe0d391e70418db02"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7ea07afb230f1342ab0f9365edd0aae137f425d3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c8e934287debb29c6ded86b21e49fc72e186d15e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

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