CVE-2026-98948mlxsw: spectrum_flower: Fix port range register leak in tmplt_create()
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 94% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In 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.
Timeline
ID reserved
By Linux
- 28 days later
· 28 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected fe22f7410527c2077223b5fd0fc0458db912f0db – < 41ad5bcf0219aaebf8ffb052c5e8177479330cde
- affected fe22f7410527c2077223b5fd0fc0458db912f0db – < c8e934287debb29c6ded86b21e49fc72e186d15e
- affected fe22f7410527c2077223b5fd0fc0458db912f0db – < 3938430f0237c59ca08d6a366e7657b2b7f8d0bb
- affected fe22f7410527c2077223b5fd0fc0458db912f0db – < 4eaf1285b5c1e42f80e47f9fe0d391e70418db02
- affected fe22f7410527c2077223b5fd0fc0458db912f0db – < 7ea07afb230f1342ab0f9365edd0aae137f425d3
- affected 6.6
- unaffected < 6.6
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.113 – ≤ 6.12.*
- unaffected 6.18.57 – ≤ 6.18.*
- unaffected 7.2.11 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References5
- https://git.kernel.org/stable/c/41ad5bcf0219aaebf8ffb052c5e8177479330cde (opens in a new tab)
- https://git.kernel.org/stable/c/c8e934287debb29c6ded86b21e49fc72e186d15e (opens in a new tab)
- https://git.kernel.org/stable/c/3938430f0237c59ca08d6a366e7657b2b7f8d0bb (opens in a new tab)
- https://git.kernel.org/stable/c/4eaf1285b5c1e42f80e47f9fe0d391e70418db02 (opens in a new tab)
- https://git.kernel.org/stable/c/7ea07afb230f1342ab0f9365edd0aae137f425d3 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-108922 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-98948)Record last updated .