CVE-2024-35970

Name of the Vulnerable Software and Affected Versions: Linux kernel (affected versions not specified)

Description: The issue is related to the wrong handling of OOB skb in the manage oob() function. When recvmsg() is called without MSG OOB, manage oob() is called to check if the peeked skb is OOB skb. In such a case, manage oob() pops it out of the receive queue but does not clear unix sock(sk)->oob skb. This is wrong in terms of uAPI. The problem can be triggered by sending a file descriptor to itself as OOB data and trying to receive normal data, but finally recv() fails due to async close(). To avoid these issues, we must clear unix sk(sk)->oob skb when dequeuing it from the recv queue.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.