# CVE-2026-68240: linux: In the Linux kernel, the following vulnerability has been resolved:  drm/gpusvm: publish dpagemap early to avoid devi...

CVE-2026-68240 is fixed in linux on 1 platform by DEBIAN-CVE-2026-68240 (version 7.1.6-1), released August 11, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-68240
- Priority: High
- CVSS: 8.8 (high)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 10, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  drm/gpusvm: publish dpagemap early to avoid device mapping leak on error  drm_gpusvm_get_pages() only stored the local dpagemap into svm_pages->dpagemap on the success path. If a later page failed (e.g. -EOPNOTSUPP when ctx->allow_mixed is false) and jumped to err_unmap, svm_pages->dpagemap was still NULL, so __drm_gpusvm_unmap_pages() skipped device_unmap() and leaked the device mappings already created.  Assign svm_pages->dpagemap when the first device page is mapped so the err_unmap path can device_unmap() those mappings.  This issue was found by Sashiko AI review.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.1.6-1 | [DEBIAN-CVE-2026-68240](https://patchblox.com/security/data/fix/linux/debian-cve-2026-68240.md) | Aug 11, 2026 |

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Data as of 2026-11-08T13:06:02Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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