CVE-2026-53238
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)
netlabel: validate unlabeled address and mask attribute lengths
In the Linux kernel, the following vulnerability has been resolved: netlabel: validate unlabeled address and mask attribute lengths netlbl_unlabel_addrinfo_get() used the address attribute length to determine whether the attribute data could be read as an IPv4 or IPv6 address, but did not independently validate the corresponding mask attribute length. A crafted Generic Netlink request could therefore provide a valid IPv4/IPv6 address attribute with a shorter mask attribute, which would later be read as a full struct in_addr or struct in6_addr. NLA_BINARY policy lengths are maximum lengths by default, so use NLA_POLICY_EXACT_LEN() for the unlabeled IPv4/IPv6 address and mask attributes. This rejects short attributes during policy validation and also exposes the exact length requirements through policy introspection.
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) |
|---|---|---|---|---|---|
| 8cc44579d1bd77ba3a32f2cb76fd9669c229c5fd | affected | git | 975a84fd741440853380d37465b6e226cf47254c | Unavailable | None listed |
| 8cc44579d1bd77ba3a32f2cb76fd9669c229c5fd | affected | git | 672f0f3b8f875ffe6525a37847eafa7648c4c0c6 | Unavailable | None listed |
| 8cc44579d1bd77ba3a32f2cb76fd9669c229c5fd | affected | git | 95bda3eac0b1454c2cee98d58d9ba6dd8391e843 | Unavailable | None listed |
| 8cc44579d1bd77ba3a32f2cb76fd9669c229c5fd | affected | git | 07a18f5c90dd3d586b73242f5a5bbf0a72f2fdc6 | Unavailable | None listed |
| 8cc44579d1bd77ba3a32f2cb76fd9669c229c5fd | affected | git | 71c52da13c3737493b42d20d9f33de34e03b3156 | Unavailable | None listed |
| 8cc44579d1bd77ba3a32f2cb76fd9669c229c5fd | affected | git | 0c4bb32ad7fdc2dc6a8050f41eb04d4bda56b6c8 | Unavailable | None listed |
| 8cc44579d1bd77ba3a32f2cb76fd9669c229c5fd | affected | git | ccfe292a966079c61ea68a2da303b2a336170993 | Unavailable | None listed |
| 8cc44579d1bd77ba3a32f2cb76fd9669c229c5fd | affected | git | 9772589b57e44aedc240211c5c3f7a684a034d3a | 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) |
|---|---|---|---|---|---|
| 2.6.25 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.25 | Unavailable | None listed |
| 5.10.259 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.210 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.176 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.143 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.94 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.36 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.13 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |