CVE-2026-68240
- Source
- https://cve.org/CVERecord?id=CVE-2026-68240
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68240.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-68240
- Downstream
- Published
- 2026-08-10T12:01:05.810Z
- Modified
- 2026-08-18T03:30:50.211024354Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- drm/gpusvm: publish dpagemap early to avoid device mapping leak on error
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/gpusvm: publish dpagemap early to avoid device mapping leak on error
drmgpusvmgetpages() only stored the local dpagemap into svmpages->dpagemap on the success path. If a later page failed (e.g. -EOPNOTSUPP when ctx->allowmixed is false) and jumped to errunmap, svm_pages->dpagemap was still NULL, so __drmgpusvmunmappages() skipped deviceunmap() and leaked the device mappings already created.
Assign svmpages->dpagemap when the first device page is mapped so the errunmap path can device_unmap() those mappings.
This issue was found by Sashiko AI review.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68240.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/72e4fca5529e45b5beebad79d804de442f632324
- https://git.kernel.org/stable/c/7f708f51e3955bda0d77a0b67ab9bea6c97fea99
- https://git.kernel.org/stable/c/e8362523fd1b61712f7d996802f9b5dee545c7e6
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68240.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-68240
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git