{"id":"CVE-2026-68270","summary":"drm/sysfb: Avoid possible truncation with calculating visible size","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/sysfb: Avoid possible truncation with calculating visible size\n\nCalculating the visible size of the system framebuffer can result in\ntruncation of the result. The calculation uses 32-bit arithmetics,\nwhich can overflow if the values for height and stride are large. Fix\nthe issue by multiplying with mul_u32_u32().","modified":"2026-08-18T03:31:16.361030743Z","published":"2026-08-10T12:01:45.569Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68270.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/154795885e8f0033c918c815aece543168bee670"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9d58a811739a365cd693192f4b5344d736967a88"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b771974988ec7ce077a7246fa0fa588c246fe581"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68270.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68270"},{"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":"32ae90c66fb62e4f6ae859422f733dfb249f10cf"},{"fixed":"154795885e8f0033c918c815aece543168bee670"},{"fixed":"9d58a811739a365cd693192f4b5344d736967a88"},{"fixed":"b771974988ec7ce077a7246fa0fa588c246fe581"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68270.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.16.0"},{"fixed":"6.18.42"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68270.json"}}],"schema_version":"1.9.0"}