Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 176fdcbddfd288408ce8571c1760ad618d962096 before 6190d4c08897d748dd25f0b78267a90aa1694e15; affected 176fdcbddfd288408ce8571c1760ad618d962096 before 042b5f83841fbf7ce39474412db3b5e4765a7ea7 |
| Linux / Linux | affected 6.7; unaffected 0 before 6.7; unaffected 6.7.6 through 6.7.*; unaffected 6.8 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/6190d4c08897d748dd25f0b78267a90aa1694e15
- https://git.kernel.org/stable/c/042b5f83841fbf7ce39474412db3b5e4765a7ea7
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.