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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-68256 Detail

Description

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)


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/4ee77643e6194f2deb62fe62f04396f9825e27d8 kernel.org
https://git.kernel.org/stable/c/58ea24dd96848626039296e9e8510270ec8dc4bf kernel.org
https://git.kernel.org/stable/c/a59e493567d18ef3858be9368acd132a01ebfa09 kernel.org
https://git.kernel.org/stable/c/a6e14b976be48eebd8769cb5b883a6af7fc5ade1 kernel.org
https://git.kernel.org/stable/c/f9922828a4ebd26286fbe0286cc61695e7d9b07b kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-68256
NVD Published Date:
08/10/2026
NVD Last Modified:
08/17/2026
Source:
kernel.org