# CVE-2024-26912: linux: In the Linux kernel, the following vulnerability has been resolved:  drm/nouveau: fix several DMA buffer leaks  Nouve...

CVE-2024-26912 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-26912, released April 17, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-26912
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0019
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 17, 2024

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.7.7-1 | [DEBIAN-CVE-2024-26912](https://patchblox.com/security/data/fix/linux/debian-cve-2024-26912.md) | Apr 17, 2024 |
| Linux | linux Debian 14 | 6.7.7-1 | [DEBIAN-CVE-2024-26912](https://patchblox.com/security/data/fix/linux/debian-cve-2024-26912.md) | Apr 17, 2024 |

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