CVE-2026-80664
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_nat: reject unsupported target families
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_nat: reject unsupported target families xt_nat SNAT and DNAT target handlers assume IP-family conntrack state is present and can dereference a NULL pointer when instantiated from an unsupported family through nft_compat. A bridge-family compat rule can therefore trigger a NULL-dereference in nf_nat_setup_info(). Reject non-IP families in xt_nat_checkentry() so unsupported targets cannot be installed. Keep NFPROTO_INET allowed for valid inet NAT compat users and leave the runtime fast path unchanged. [ The crash was fixed via 9dbba7e694ec ("netfilter: nft_compat: ebtables emulation must reject non-bridge targets"), so this patch is no longer critical. Nevertheless, NAT is only relevant for ipv4/ipv6, so this extra family check is a good idea in any case. ]
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) |
|---|---|---|---|---|---|
| c7232c9979cba684c50b64c513c4a83c9aa70563 | affected | git | 49abe564391411057a26a9a943c8e17867c3b9b4 | Unavailable | None listed |
| c7232c9979cba684c50b64c513c4a83c9aa70563 | affected | git | 0afc9ad987c0faa80ab5f8d6e7815085ac8dbb82 | Unavailable | None listed |
| c7232c9979cba684c50b64c513c4a83c9aa70563 | affected | git | 4fbc2bac02edabb665beb2aa87ca6f1e1d4c4777 | Unavailable | None listed |
| c7232c9979cba684c50b64c513c4a83c9aa70563 | affected | git | a842dab87cab29f2a5798a47b2dc5e6a449950bf | Unavailable | None listed |
| c7232c9979cba684c50b64c513c4a83c9aa70563 | affected | git | e35c048d7511e9d4c2a537b8a231c49606e97c16 | Unavailable | None listed |
| c7232c9979cba684c50b64c513c4a83c9aa70563 | affected | git | 679ced28a9dc2f6dc679eb05027d779693e60902 | Unavailable | None listed |
| c7232c9979cba684c50b64c513c4a83c9aa70563 | affected | git | ec88fa71c82072e9189983b05b499d3507550271 | Unavailable | None listed |
| c7232c9979cba684c50b64c513c4a83c9aa70563 | affected | git | 5d1a2240935ea47e2673d0ea17fdb058e4dc91dd | 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) |
|---|---|---|---|---|---|
| 3.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.7 | 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 |