CVE-2026-72256
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
netfilter: xt_cluster: reject template conntracks in hash match
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_cluster: reject template conntracks in hash match xt_cluster_mt() treats any non-NULL nf_ct_get() result as a fully initialized conntrack and passes it to xt_cluster_hash(). This causes a state confusion bug when the raw table CT target attaches a template conntrack to skb->_nfct before normal conntrack processing. Templates carry IPS_TEMPLATE status but do not have a valid tuple for hashing yet, so xt_cluster_hash() can hit its WARN_ON() path on the zeroed l3num field. Reject template conntracks before hashing them. This matches existing netfilter handling for template objects and avoids hashing incomplete conntrack state.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0269ea4937343536ec7e85649932bc8c9686ea78 | affected | git | 4558bd7b47c7be82dffd837f27be8ea3ecee557d | Unavailable | None listed |
| 0269ea4937343536ec7e85649932bc8c9686ea78 | affected | git | d5f9d050b0b267227c1f02f11021872c7768a9cc | Unavailable | None listed |
| 0269ea4937343536ec7e85649932bc8c9686ea78 | affected | git | 4cb8b5f586e41c187942291cc0938006077fa79e | Unavailable | None listed |
| 0269ea4937343536ec7e85649932bc8c9686ea78 | affected | git | fac2fdac3baad9ffd12b3b0bba4374d4b3585d54 | Unavailable | None listed |
| 0269ea4937343536ec7e85649932bc8c9686ea78 | affected | git | 13ea4f86cf738c74be2146886ac261988a631e62 | Unavailable | None listed |
| 0269ea4937343536ec7e85649932bc8c9686ea78 | affected | git | 07f9ddbf5e799c24a3a52ec9bd7b729a6f6d69d5 | Unavailable | None listed |
| 0269ea4937343536ec7e85649932bc8c9686ea78 | affected | git | 5b2d4f0010018a7aa3495aa1dbf1b7a34011e7aa | Unavailable | None listed |
| 0269ea4937343536ec7e85649932bc8c9686ea78 | affected | git | 5feba91006ec92da57acc1cc2e34df623b98541e | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.30 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.30 | Unavailable | None listed |
| 5.10.261 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.212 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.178 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.97 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.40 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.5 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |