netfilter: nf_nat: unregister and release hooks on error
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_nat: unregister and release hooks on error If nf_hook_entries_insert_raw() fails, the NAT hooks get never released, resulting in a memleak. Postpone setting nat_proto_net->nat_hook_ops when the hooks are registered to simplify the error path to decide whether the nat hooks need unwinding.
CVE-2026-98321
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-2026-98321
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": "1cd472bf036ca038e783ef5f058f54e45b7e8180",
"lessThan": "79084567cd082fb4482e1ea457580e7d6504dd99",
"versionType": "git"
},
{
"status": "affected",
"version": "1cd472bf036ca038e783ef5f058f54e45b7e8180",
"lessThan": "df80342f4bfc023ad7d6703df5e27f583ff0cb8d",
"versionType": "git"
},
{
"status": "affected",
"version": "1cd472bf036ca038e783ef5f058f54e45b7e8180",
"lessThan": "cbdd39ce42530a193c56beb206a3356cb6d01016",
"versionType": "git"
}
],
"programFiles": [
"net/netfilter/nf_nat_core.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.18"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.18",
"versionType": "semver"
},
{
"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/netfilter/nf_nat_core.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98321
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38400 · Revision 1
- Added to Heist Feed
- Publisher date