Null Pointer Dereference in Linux Kernel Network Module

CVE-2022-50409

What is CVE-2022-50409?

A vulnerability exists in the Linux kernel's network module, where a dead socket is improperly accessed, leading to a NULL pointer dereference. This occurs when one thread attempts to wait for memory on a socket that has been released by another thread. The issue arises specifically during the handling of socket events, where insufficient checks on socket states allow the access of invalid memory locations. This vulnerability not only affects network operations but could also lead to crashes or unintended behavior in applications relying on the kernel's networking stack. Update your Linux kernel to the latest version to mitigate this risk.

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