CVE-2025-22063 (GCVE-0-2025-22063)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2026-05-11 21:11
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: netlabel: Fix NULL pointer exception caused by CALIPSO on IPv4 sockets When calling netlbl_conn_setattr(), addr->sa_family is used to determine the function behavior. If sk is an IPv4 socket, but the connect function is called with an IPv6 address, the function calipso_sock_setattr() is triggered. Inside this function, the following code is executed: sk_fullsock(__sk) ? inet_sk(__sk)->pinet6 : NULL; Since sk is an IPv4 socket, pinet6 is NULL, leading to a null pointer dereference. This patch fixes the issue by checking if inet6_sk(sk) returns a NULL pointer before accessing pinet6.
References
Impacted products
Vendor Product Version
Linux Linux Version: ceba1832b1b2da0149c51de62a847c00bca1677a
Version: ceba1832b1b2da0149c51de62a847c00bca1677a
Version: ceba1832b1b2da0149c51de62a847c00bca1677a
Version: ceba1832b1b2da0149c51de62a847c00bca1677a
Version: ceba1832b1b2da0149c51de62a847c00bca1677a
Version: ceba1832b1b2da0149c51de62a847c00bca1677a
Version: ceba1832b1b2da0149c51de62a847c00bca1677a
Version: ceba1832b1b2da0149c51de62a847c00bca1677a
Version: ceba1832b1b2da0149c51de62a847c00bca1677a
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