CVE-2026-68256: Linux

Описание

Оригинално описание

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)

Засегнати продукти

• Linux Linux: 54618888d1ea7a26f8bccfb89e3c2420350c8047 преди f9922828a4ebd26286fbe0286cc61695e7d9b07b; 54618888d1ea7a26f8bccfb89e3c2420350c8047 преди a59e493567d18ef3858be9368acd132a01ebfa09; 54618888d1ea7a26f8bccfb89e3c2420350c8047 преди 4ee77643e6194f2deb62fe62f04396f9825e27d8; 54618888d1ea7a26f8bccfb89e3c2420350c8047 преди 58ea24dd96848626039296e9e8510270ec8dc4bf; 54618888d1ea7a26f8bccfb89e3c2420350c8047 преди a6e14b976be48eebd8769cb5b883a6af7fc5ade1
• Linux Linux: 6.3; преди 6.3; 6.6.148 до 6.6.*; 6.12.101 до 6.12.*; 6.18.42 до 6.18.*; 7.1.6 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-68256
• https://nvd.nist.gov/vuln/detail/CVE-2026-68256
• 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