mlxsw: spectrum_flower: Fix port range register leak in tmplt_create()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98948
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-23 13:17:15 UTC
Updated2026-10-23 13:17:15 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum_flower: Fix port range register leak in tmplt_create() mlxsw_sp_flower_tmplt_create() parses a flow_cls_offload template into a stack-local struct mlxsw_sp_acl_rule_info purely to compute rulei.values.elusage. Parsing can acquire port range registers via mlxsw_sp_flower_parse_ports_range(), but since this rulei never goes through mlxsw_sp_acl_rulei_destroy(), those registers were never released, including through chain template deletion. Factor out of mlxsw_sp_acl_rulei_destroy() the code to actually release the necessary resources and call from mlxsw_sp_flower_tmplt_create() to plug the leak. The issue was found during a review of Wentao Liang's patch referenced below.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected fe22f7410527c2077223b5fd0fc0458db912f0db 41ad5bcf0219aaebf8ffb052c5e8177479330cde git Not specified
CNA Linux Linux affected fe22f7410527c2077223b5fd0fc0458db912f0db c8e934287debb29c6ded86b21e49fc72e186d15e git Not specified
CNA Linux Linux affected fe22f7410527c2077223b5fd0fc0458db912f0db 3938430f0237c59ca08d6a366e7657b2b7f8d0bb git Not specified
CNA Linux Linux affected fe22f7410527c2077223b5fd0fc0458db912f0db 4eaf1285b5c1e42f80e47f9fe0d391e70418db02 git Not specified
CNA Linux Linux affected fe22f7410527c2077223b5fd0fc0458db912f0db 7ea07afb230f1342ab0f9365edd0aae137f425d3 git Not specified
CNA Linux Linux affected 6.6 Not specified
CNA Linux Linux unaffected 6.6 semver Not specified
CNA Linux Linux unaffected 6.6.160 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.113 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.57 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.11 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/c8e934287debb29c6ded86b21e49fc72e186d15e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4eaf1285b5c1e42f80e47f9fe0d391e70418db02 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3938430f0237c59ca08d6a366e7657b2b7f8d0bb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/41ad5bcf0219aaebf8ffb052c5e8177479330cde 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7ea07afb230f1342ab0f9365edd0aae137f425d3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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