mlxsw: spectrum_flower: Fix port range register leak in tmplt_create()
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.
CVE-2026-98948
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98948
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "fe22f7410527c2077223b5fd0fc0458db912f0db",
"lessThan": "41ad5bcf0219aaebf8ffb052c5e8177479330cde",
"versionType": "git"
},
{
"status": "affected",
"version": "fe22f7410527c2077223b5fd0fc0458db912f0db",
"lessThan": "c8e934287debb29c6ded86b21e49fc72e186d15e",
"versionType": "git"
},
{
"status": "affected",
"version": "fe22f7410527c2077223b5fd0fc0458db912f0db",
"lessThan": "3938430f0237c59ca08d6a366e7657b2b7f8d0bb",
"versionType": "git"
},
{
"status": "affected",
"version": "fe22f7410527c2077223b5fd0fc0458db912f0db",
"lessThan": "4eaf1285b5c1e42f80e47f9fe0d391e70418db02",
"versionType": "git"
},
{
"status": "affected",
"version": "fe22f7410527c2077223b5fd0fc0458db912f0db",
"lessThan": "7ea07afb230f1342ab0f9365edd0aae137f425d3",
"versionType": "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"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.6",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.113",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.11",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/mellanox/mlxsw/spectrum.h",
"drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c",
"drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98948
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #52804 · Revision 1
- Added to Heist Feed
- Publisher date