{"id":"CVE-2026-68236","summary":"drm/amd/display: set new_stream to NULL after release","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: set new_stream to NULL after release\n\nIn dm_update_crtc_state(), the skip_modeset path releases new_stream\nvia dc_stream_release() but does not set the pointer to NULL.\n\nIf a later error (e.g., color management failure) triggers the fail\nlabel, the error path calls dc_stream_release() again on the same\ndangling pointer, causing a double release and potential use-after-free.\n\nFix this by setting new_stream to NULL after the initial release.\n\n(cherry picked from commit 99f3af19073b3ddbfd96e789124cce12c4277b28)","modified":"2026-08-14T04:03:56.440916901Z","published":"2026-08-10T12:01:01.114Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68236.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0676fecbb5242aa22c057e78326d6d6041db034c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5182e442e61397d446c36995b8f5676942d35b82"},{"type":"WEB","url":"https://git.kernel.org/stable/c/679f23f0a3606afcef1ffabd72222f00a54ad9e3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9fa26b9eed6195bf840f39ac183b9a6237548755"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ba8bf1dcbb44773e7a0fd13b42925c644e0d5e76"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68236.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68236"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"9b690ef3c70422cdcd0cf912db33f2c92ef4a53f"},{"fixed":"ba8bf1dcbb44773e7a0fd13b42925c644e0d5e76"},{"fixed":"5182e442e61397d446c36995b8f5676942d35b82"},{"fixed":"679f23f0a3606afcef1ffabd72222f00a54ad9e3"},{"fixed":"0676fecbb5242aa22c057e78326d6d6041db034c"},{"fixed":"9fa26b9eed6195bf840f39ac183b9a6237548755"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68236.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.15.0"},{"fixed":"6.6.148"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.101"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.42"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68236.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}