CVE-2026-68256
- Source
- https://cve.org/CVERecord?id=CVE-2026-68256
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68256.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-68256
- Downstream
- Published
- 2026-08-10T12:01:26Z
- Modified
- 2026-08-18T03:31:17Z
- Summary
- drm/amd/display: detect_link_and_local_sink: DP alt mode timeout path leaks prev_sink reference
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: detect_link_and_local_sink: DP alt mode timeout path leaks prev_sink reference
prev_sink is unconditionally retained via dc_sink_retain at function entry, but the DP alt mode timeout path inside SIGNAL_TYPE_DISPLAY_PORT returns false without releasing prev_sink. All other return paths in the function correctly call dc_sink_release(prev_sink), making this the only missing cleanup.
(cherry picked from commit 45510cf662dcf46b5d8926d454f338809f107b9d)
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68256.json" }- References
-
- https://git.kernel.org/stable/c/4ee77643e6194f2deb62fe62f04396f9825e27d8
- https://git.kernel.org/stable/c/58ea24dd96848626039296e9e8510270ec8dc4bf
- https://git.kernel.org/stable/c/a59e493567d18ef3858be9368acd132a01ebfa09
- https://git.kernel.org/stable/c/a6e14b976be48eebd8769cb5b883a6af7fc5ade1
- https://git.kernel.org/stable/c/f9922828a4ebd26286fbe0286cc61695e7d9b07b
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68256.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-68256
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced54618888d1ea7a26f8bccfb89e3c2420350c8047Fixedf9922828a4ebd26286fbe0286cc61695e7d9b07bFixeda59e493567d18ef3858be9368acd132a01ebfa09Fixed4ee77643e6194f2deb62fe62f04396f9825e27d8Fixed58ea24dd96848626039296e9e8510270ec8dc4bfFixeda6e14b976be48eebd8769cb5b883a6af7fc5ade1