Answer in brief
CVE-2026-68256 records a Unknown severity vulnerability in drm/amd/display: detect_link_and_local_sink: DP alt mode timeout path leaks prev_sink reference. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=54618888d1ea7a26f8bccfb89e3c2420350c8047 <f9922828a4ebd26286fbe0286cc61695e7d9b07b || >=54618888d1ea7a26f8bccfb89e3c2420350c8047 <a59e493567d18ef3858be9368acd132a01ebfa09 || >=54618888d1ea7a26f8bccfb89e3c2420350c8047 <4ee77643e6194f2deb62fe62f04396f9825e27d8 || >=54618888d1ea7a26f8bccfb89e3c2420350c8047 <58ea24dd96848626039296e9e8510270ec8dc4bf || >=54618888d1ea7a26f8bccfb89e3c2420350c8047 <a6e14b976be48eebd8769cb5b883a6af7fc5ade1 | f9922828a4ebd26286fbe0286cc61695e7d9b07b, a59e493567d18ef3858be9368acd132a01ebfa09, 4ee77643e6194f2deb62fe62f04396f9825e27d8, 58ea24dd96848626039296e9e8510270ec8dc4bf, a6e14b976be48eebd8769cb5b883a6af7fc5ade1 |
| Linux/Linuxgeneric | 6.3 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
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)
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-68256 records a Unknown severity vulnerability in drm/amd/display: detect_link_and_local_sink: DP alt mode timeout path leaks prev_sink reference. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=54618888d1ea7a26f8bccfb89e3c2420350c8047 <f9922828a4ebd26286fbe0286cc61695e7d9b07b || >=54618888d1ea7a26f8bccfb89e3c2420350c8047 <a59e493567d18ef3858be9368acd132a01ebfa09 || >=54618888d1ea7a26f8bccfb89e3c2420350c8047 <4ee77643e6194f2deb62fe62f04396f9825e27d8 || >=54618888d1ea7a26f8bccfb89e3c2420350c8047 <58ea24dd96848626039296e9e8510270ec8dc4bf || >=54618888d1ea7a26f8bccfb89e3c2420350c8047 <a6e14b976be48eebd8769cb5b883a6af7fc5ade1 | f9922828a4ebd26286fbe0286cc61695e7d9b07b, a59e493567d18ef3858be9368acd132a01ebfa09, 4ee77643e6194f2deb62fe62f04396f9825e27d8, 58ea24dd96848626039296e9e8510270ec8dc4bf, a6e14b976be48eebd8769cb5b883a6af7fc5ade1 |
| Linux/Linuxgeneric | 6.3 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
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)
Quoted source text, attributed separately from HOL analysis.