CVE-2026-68256drm/amd/display: detect_link_and_local_sink: DP alt mode timeout path leaks prev_sink reference
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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)
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 54618888d1ea7a26f8bccfb89e3c2420350c8047 before f9922828a4ebd26286fbe0286cc61695e7d9b07b; from 54618888d1ea7a26f8bccfb89e3c2420350c8047 before a59e493567d18ef3858be9368acd132a01ebfa09; 54618888d1ea7a26f8bccfb89e3c2420350c8047 builds before 4ee77643e6194f2deb62fe62f04396f9825e27d8; 54618888d1ea7a26f8bccfb89e3c2420350c8047 builds before 58ea24dd96848626039296e9e8510270ec8dc4bf; from 54618888d1ea7a26f8bccfb89e3c2420350c8047 before a6e14b976be48eebd8769cb5b883a6af7fc5ade1 | CNA record |
References
- https://git.kernel.org/stable/c/f9922828a4ebd26286fbe0286cc61695e7d9b07b
- https://git.kernel.org/stable/c/a59e493567d18ef3858be9368acd132a01ebfa09
- https://git.kernel.org/stable/c/4ee77643e6194f2deb62fe62f04396f9825e27d8
- https://git.kernel.org/stable/c/58ea24dd96848626039296e9e8510270ec8dc4bf
- https://git.kernel.org/stable/c/a6e14b976be48eebd8769cb5b883a6af7fc5ade1
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.