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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-53238 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/07a18f5c90dd3d586b73242f5a5bbf0a72f2fdc6 kernel.org
https://git.kernel.org/stable/c/0c4bb32ad7fdc2dc6a8050f41eb04d4bda56b6c8 kernel.org
https://git.kernel.org/stable/c/672f0f3b8f875ffe6525a37847eafa7648c4c0c6 kernel.org
https://git.kernel.org/stable/c/71c52da13c3737493b42d20d9f33de34e03b3156 kernel.org
https://git.kernel.org/stable/c/95bda3eac0b1454c2cee98d58d9ba6dd8391e843 kernel.org
https://git.kernel.org/stable/c/975a84fd741440853380d37465b6e226cf47254c kernel.org
https://git.kernel.org/stable/c/9772589b57e44aedc240211c5c3f7a684a034d3a kernel.org
https://git.kernel.org/stable/c/ccfe292a966079c61ea68a2da303b2a336170993 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-53238
NVD Published Date:
06/25/2026
NVD Last Modified:
06/25/2026
Source:
kernel.org