CVE-2026-68240High· 8.8▾ TwilightIn 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 …
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= f70da6f99d4f40c5f481c92e3b65d5e36eaa6dc9 < e8362523fd1b61712f7d996802f9b5dee545c7e6Linux >= f70da6f99d4f40c5f481c92e3b65d5e36eaa6dc9 < 72e4fca5529e45b5beebad79d804de442f632324Linux >= f70da6f99d4f40c5f481c92e3b65d5e36eaa6dc9 < 7f708f51e3955bda0d77a0b67ab9bea6c97fea99Linux 6.18Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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