Linux Kernel Vulnerability Affecting AMD Display Management

CVE-2024-56775

What is CVE-2024-56775?

A vulnerability in the Linux kernel concerning AMD display management was addressed, where the management of plane states lacked proper reference counting. This oversight could lead to memory leaks if the reference count was expected to decrease but was not handled correctly, or it could also lead to double frees and invalid memory accesses when the reference count was expected to increase. The solution involves ensuring that the current reference count is cached and reapplied during plane state restorations, thus enhancing the stability and security of the display management system.

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