net/sched: act_api: release tail references on DELACTION failure
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_api: release tail references on DELACTION failure A batched RTM_DELACTION request takes a temporary reference on each action before attempting any deletion. tcf_action_delete() clears each processed slot and drops its temporary reference before attempting the deletion. If deletion fails, tca_action_gd() calls tcf_action_put_many() to release the remaining references, but its tcf_act_for_each_action() iterator stops at the first NULL slot. When a batch stops at an action bound to a filter, this leaks a reference on each subsequent action. A later delete of an unbound action can then return success without removing it from the IDR. Walk the full array in tcf_action_put_many() and skip NULL slots to release the references held on the unprocessed actions.
CVE-2026-98235
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-2026-98235
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": "a0e947c9ccffe47d45aca793d9e7fe4f4494e381",
"lessThan": "9eaba16f1b6ee19b249e6afd82c27f958d441458",
"versionType": "git"
},
{
"status": "affected",
"version": "a0e947c9ccffe47d45aca793d9e7fe4f4494e381",
"lessThan": "1be63e4579af408d596f0f3165faf1a880631d3b",
"versionType": "git"
},
{
"status": "affected",
"version": "a0e947c9ccffe47d45aca793d9e7fe4f4494e381",
"lessThan": "57b477e46ef2df3483f3488cc713c61c4b384aab",
"versionType": "git"
},
{
"status": "affected",
"version": "a0e947c9ccffe47d45aca793d9e7fe4f4494e381",
"lessThan": "6e05e46fa821a5c1b281355f1f622ac76cb6080a",
"versionType": "git"
}
],
"programFiles": [
"net/sched/act_api.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/sched/act_api.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98235
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38315 · Revision 1
- Added to Heist Feed
- Publisher date