Description
In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix several DMA buffer leaks Nouveau manages GSP-RM DMA buffers with nvkm_gsp_mem objects. Several of these buffers are never dealloced. Some of them can be deallocated right after GSP-RM is initialized, but the rest need to stay until the driver unloads. Also futher bullet-proof these objects by poisoning the buffer and clearing the nvkm_gsp_mem object when it is deallocated. Poisoning the buffer should trigger an error (or crash) from GSP-RM if it tries to access the buffer after we've deallocated it, because we were wrong about when it is safe to deallocate. Finally, change the mem->size field to a size_t because that's the same type that dma_alloc_coherent expects.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
176fdcbddfd288408ce8571c1760ad618d962096 to < 6190d4c08897d748dd25f0b78267a90aa1694e15affected176fdcbddfd288408ce8571c1760ad618d962096 to < 042b5f83841fbf7ce39474412db3b5e4765a7ea7affected
Linux Linux
Default version status: affected
6.7affected0 to < 6.7unaffected6.7.6 to ≤ 6.7.*unaffected6.8 to ≤ *unaffected