sctp: detect and prevent references to a freed transport in sendmsg

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PT-2019-4661 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 5.4.2 Description: The issue is related to the io uring feature in the Linux kernel, which can lead to requests being executed with UID 0 and full capabilities, even when initiated by an unprivileged user. This...