netfilter: xt_CT: drop pending enqueued packets on template removal
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_CT: drop pending enqueued packets on template removal Templates refer to objects that can go away while packets are sitting in nfqueue refer to: - helper, this can be an issue on module removal. - timeout policy, nfnetlink_cttimeout might remove it. The use of templates with zone and event cache filter are safe, since this just copies values. Flush these enqueued packets in case the template rule gets removed.
CVE-2026-23391
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-2026-23391
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": "24de58f465165298aaa8f286b2592f0163706cfe",
"lessThan": "55445134d42b84cb0a272e42c98d233ca65eca83",
"versionType": "git"
},
{
"status": "affected",
"version": "24de58f465165298aaa8f286b2592f0163706cfe",
"lessThan": "cc57506dd66555899560b9c0f24e813f034e12ec",
"versionType": "git"
},
{
"status": "affected",
"version": "24de58f465165298aaa8f286b2592f0163706cfe",
"lessThan": "d2d0bae0c9a2a17b6990a2966f5cdce0813d6256",
"versionType": "git"
},
{
"status": "affected",
"version": "24de58f465165298aaa8f286b2592f0163706cfe",
"lessThan": "63b8097cea1923fe82cd598068d0796da8c015ec",
"versionType": "git"
},
{
"status": "affected",
"version": "24de58f465165298aaa8f286b2592f0163706cfe",
"lessThan": "19a230dec6bb8928e3f96387f9085cf2c79bcef9",
"versionType": "git"
},
{
"status": "affected",
"version": "24de58f465165298aaa8f286b2592f0163706cfe",
"lessThan": "cb549925875fa06dd155e49db4ac2c5044c30f9c",
"versionType": "git"
},
{
"status": "affected",
"version": "24de58f465165298aaa8f286b2592f0163706cfe",
"lessThan": "777d02efe3d630cca4c1b63962cec17c57711325",
"versionType": "git"
},
{
"status": "affected",
"version": "24de58f465165298aaa8f286b2592f0163706cfe",
"lessThan": "f62a218a946b19bb59abdd5361da85fa4606b96b",
"versionType": "git"
}
],
"programFiles": [
"net/netfilter/xt_CT.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.4"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.4",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.253",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.203",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.167",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.130",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.78",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.20",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.10",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/netfilter/xt_CT.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-23391
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #39841 · Revision 1
- Added to Heist Feed
- Publisher date