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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
f70da6f99d4f40c5f481c92e3b65d5e36eaa6dc9 affected < e8362523fd1b61712f7d996802f9b5dee545c7e6
f70da6f99d4f40c5f481c92e3b65d5e36eaa6dc9 affected < 72e4fca5529e45b5beebad79d804de442f632324
f70da6f99d4f40c5f481c92e3b65d5e36eaa6dc9 affected < 7f708f51e3955bda0d77a0b67ab9bea6c97fea99
Linux Linux affected
Version Status Constraints
6.18 affected —
0 unaffected < 6.18
6.18.44 unaffected ≤ 6.18.*
7.1.6 unaffected ≤ 7.1.*
7.2-rc4 unaffected ≤ *

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References
Link Providers
https://git.kernel.org/stable/c/72e4fca5529e45b5beebad79d804de442f632324 cve-icon
https://git.kernel.org/stable/c/7f708f51e3955bda0d77a0b67ab9bea6c97fea99 cve-icon
https://git.kernel.org/stable/c/e8362523fd1b61712f7d996802f9b5dee545c7e6 cve-icon
History

Mon, 10 Aug 2026 12:30:00 +0000

Type Values Removed Values Added
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.
Title drm/gpusvm: publish dpagemap early to avoid device mapping leak on error
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-10T12:01:05.810Z

Reserved: 2026-07-30T09:28:09.376Z

Link: CVE-2026-68240

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

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