CVE-2024-35818

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

Description The issue is related to the removal of explicit invocations of mmiowb() in drivers, which may cause problems with MMIO writes between CPUs using lock-free synchronization. The mmio in radeon ring commit() is protected by a mutex rather than a spinlock, but in the mutex fastpath, it behaves similar to a spinlock. To resolve this, the io aw() hook is defined as mmiowb() in the architectural code. Without this fix, errors occur when running glxgears on weak ordering architectures like LoongArch, including GPU lockups and failed scheduling of IB.

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