Memory Management Flaw in Linux Kernel's ath12k Module

CVE-2025-39750

What is CVE-2025-39750?

A memory management flaw exists within the ath12k module of the Linux kernel, where errors during the setup of a transmission identifier (TID) can result in an unallocated TID being processed. Specifically, if the initialization process fails and increments the TID count before confirming allocation, it may lead to the deletion of unallocated TIDs. This oversight could cause system crashes or unauthorized access to memory regions. A fix has been implemented to ensure correct decrementing of the TID during cleanup, safeguarding the system against these potential stability issues.

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