Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
0269ea4937343536ec7e85649932bc8c9686ea78 to < 4558bd7b47c7be82dffd837f27be8ea3ecee557daffected0269ea4937343536ec7e85649932bc8c9686ea78 to < d5f9d050b0b267227c1f02f11021872c7768a9ccaffected0269ea4937343536ec7e85649932bc8c9686ea78 to < 4cb8b5f586e41c187942291cc0938006077fa79eaffected0269ea4937343536ec7e85649932bc8c9686ea78 to < fac2fdac3baad9ffd12b3b0bba4374d4b3585d54affected0269ea4937343536ec7e85649932bc8c9686ea78 to < 13ea4f86cf738c74be2146886ac261988a631e62affected0269ea4937343536ec7e85649932bc8c9686ea78 to < 07f9ddbf5e799c24a3a52ec9bd7b729a6f6d69d5affected0269ea4937343536ec7e85649932bc8c9686ea78 to < 5b2d4f0010018a7aa3495aa1dbf1b7a34011e7aaaffected0269ea4937343536ec7e85649932bc8c9686ea78 to < 5feba91006ec92da57acc1cc2e34df623b98541eaffected
Linux Linux
Default version status: affected
2.6.30affected0 to < 2.6.30unaffected5.10.261 to ≤ 5.10.*unaffected5.15.212 to ≤ 5.15.*unaffected6.1.178 to ≤ 6.1.*unaffected6.6.145 to ≤ 6.6.*unaffected6.12.97 to ≤ 6.12.*unaffected6.18.40 to ≤ 6.18.*unaffected7.1.5 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/4558bd7b47c7be82dffd837f27be8ea3ecee557d ↗
- https://git.kernel.org/stable/c/d5f9d050b0b267227c1f02f11021872c7768a9cc ↗
- https://git.kernel.org/stable/c/4cb8b5f586e41c187942291cc0938006077fa79e ↗
- https://git.kernel.org/stable/c/fac2fdac3baad9ffd12b3b0bba4374d4b3585d54 ↗
- https://git.kernel.org/stable/c/13ea4f86cf738c74be2146886ac261988a631e62 ↗
- https://git.kernel.org/stable/c/07f9ddbf5e799c24a3a52ec9bd7b729a6f6d69d5 ↗
- https://git.kernel.org/stable/c/5b2d4f0010018a7aa3495aa1dbf1b7a34011e7aa ↗
- https://git.kernel.org/stable/c/5feba91006ec92da57acc1cc2e34df623b98541e ↗