{"api_version":"1","generated_at":"2026-10-24T12:30:31+00:00","cve":"CVE-2026-98948","urls":{"html":"https://cve.report/CVE-2026-98948","api":"https://cve.report/api/cve/CVE-2026-98948.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98948","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98948"},"summary":{"title":"mlxsw: spectrum_flower: Fix port range register leak in tmplt_create()","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-23 13:17:15","updated_at":"2026-10-23 13:17:15"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/c8e934287debb29c6ded86b21e49fc72e186d15e","name":"https://git.kernel.org/stable/c/c8e934287debb29c6ded86b21e49fc72e186d15e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4eaf1285b5c1e42f80e47f9fe0d391e70418db02","name":"https://git.kernel.org/stable/c/4eaf1285b5c1e42f80e47f9fe0d391e70418db02","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3938430f0237c59ca08d6a366e7657b2b7f8d0bb","name":"https://git.kernel.org/stable/c/3938430f0237c59ca08d6a366e7657b2b7f8d0bb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/41ad5bcf0219aaebf8ffb052c5e8177479330cde","name":"https://git.kernel.org/stable/c/41ad5bcf0219aaebf8ffb052c5e8177479330cde","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7ea07afb230f1342ab0f9365edd0aae137f425d3","name":"https://git.kernel.org/stable/c/7ea07afb230f1342ab0f9365edd0aae137f425d3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98948","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98948","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fe22f7410527c2077223b5fd0fc0458db912f0db 41ad5bcf0219aaebf8ffb052c5e8177479330cde git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fe22f7410527c2077223b5fd0fc0458db912f0db c8e934287debb29c6ded86b21e49fc72e186d15e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fe22f7410527c2077223b5fd0fc0458db912f0db 3938430f0237c59ca08d6a366e7657b2b7f8d0bb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fe22f7410527c2077223b5fd0fc0458db912f0db 4eaf1285b5c1e42f80e47f9fe0d391e70418db02 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fe22f7410527c2077223b5fd0fc0458db912f0db 7ea07afb230f1342ab0f9365edd0aae137f425d3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.6","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.160 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.113 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.57 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.11 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"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"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.160","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.113","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.57","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.11","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"6.6","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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."}],"providerMetadata":{"dateUpdated":"2026-10-23T12:19:08.043Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98948","datePublished":"2026-10-23T12:19:08.043Z","dateReserved":"2026-09-25T10:25:14.382Z","dateUpdated":"2026-10-23T12:19:08.043Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-23 13:17:15","lastModifiedDate":"2026-10-23 13:17:15","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98948","Ordinal":"1","Title":"mlxsw: spectrum_flower: Fix port range register leak in tmplt_cr","CVE":"CVE-2026-98948","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98948","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"mlxsw: spectrum_flower: Fix port range register leak in tmplt_cr"}]}}}