CVE-2026-68303
- Source
- https://cve.org/CVERecord?id=CVE-2026-68303
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68303.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-68303
- Downstream
- Published
- 2026-08-10T12:02:37.512Z
- Modified
- 2026-08-12T04:18:47.685243295Z
- Summary
- drm/vc4: hvs/v3d: Fix null dereference in unbind
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/vc4: hvs/v3d: Fix null dereference in unbind
The hvs and v3d drivers use devgetdrvdata(master) in their unbind functions. Since the vc4-drm gets removed before its dependent drivers (vc4hvs/vc4v3d) the vc4hvsunbind/vc4v3dunbind functions try to get drvdata of its master and fails with a null dereference error.
Use the data pointer passed to the unbind functions directly instead of devgetdrvdata(master). This avoids using potentially freed memory.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68303.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/261f0a3f0ac03248284f5116d3258f89c9642215
- https://git.kernel.org/stable/c/7dc3680b7ffe01add3e9299fde8471d2dd53a8ae
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68303.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-68303
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git