{"cve":"CVE-2026-68256","nvd":{"published":"2026-08-10T13:20:14.250","modified":"2026-08-17T05:18:27.913","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: detect_link_and_local_sink: DP alt mode timeout path leaks prev_sink reference\n\nprev_sink is unconditionally retained via dc_sink_retain at function\n  entry, but the DP alt mode timeout path inside SIGNAL_TYPE_DISPLAY_PORT\n  returns false without releasing prev_sink. All other return paths in the\n  function correctly call dc_sink_release(prev_sink), making this the only\n  missing cleanup.\n\n(cherry picked from commit 45510cf662dcf46b5d8926d454f338809f107b9d)","cvss_v4":null,"cvss_v3":null,"cwes":[],"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"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:47:54.990491175+00:00"},"epss":{"cve":"CVE-2026-68256","score":0.00175,"percentile":0.07022,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}