# CVE-2026-98518: linux: In the Linux kernel, the following vulnerability has been resolved:  drm/nouveau/dmem: pin VRAM for the whole registe...

CVE-2026-98518 is fixed in linux on 1 platform by DEBIAN-CVE-2026-98518 (version 7.2.9-1), released October 19, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-98518
- Priority: High
- CVSS: 7.0 (high)
- EPSS: 0.0013
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 18, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  drm/nouveau/dmem: pin VRAM for the whole registered range  Commit c32287471077 ("gpu/drm/nouveau: enable THP support for GPU memory migration") grew the device-private region that nouveau_dmem_chunk_alloc() registers from DMEM_CHUNK_SIZE to DMEM_CHUNK_SIZE * NR_CHUNKS, but left the VRAM buffer object backing that region at DMEM_CHUNK_SIZE.  nouveau_dmem_page_addr() returns chunk->bo->offset plus the page's offset within the registered region, so every page past the first chunk resolves to VRAM outside the buffer object.  Size the buffer object to the region it backs.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.2.9-1 | [DEBIAN-CVE-2026-98518](https://patchblox.com/security/data/fix/linux/debian-cve-2026-98518.md) | Oct 19, 2026 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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