{"id":"CVE-2026-45962","summary":"ublk: Validate SQE128 flag before accessing the cmd","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nublk: Validate SQE128 flag before accessing the cmd\n\nublk_ctrl_cmd_dump() accesses (header *)sqe-\u003ecmd before\nIO_URING_F_SQE128 flag check. This could cause out of boundary memory\naccess.\n\nMove the SQE128 flag check earlier in ublk_ctrl_uring_cmd() to return\n-EINVAL immediately if the flag is not set.","modified":"2026-06-18T03:56:41.513195590Z","published":"2026-05-27T12:18:19.070Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45962.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/17d33ba7291100008360b5a354962db37ad80684"},{"type":"WEB","url":"https://git.kernel.org/stable/c/31cac6acf77ece488f29fb8f79589d9298e969c8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4b4dff498f46e9802f71bc84258bf73065f51c6a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/da7e4b75e50c087d2031a92f6646eb90f7045a67"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dbe8e81a2ec608f87f79a34f6444cd62f6a243bb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f75a5555e0049e7857eae25b60aee98b80e287ec"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45962.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45962"},{"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":"71f28f3136aff5890cd56de78abc673f8393cad9"},{"fixed":"4b4dff498f46e9802f71bc84258bf73065f51c6a"},{"fixed":"31cac6acf77ece488f29fb8f79589d9298e969c8"},{"fixed":"dbe8e81a2ec608f87f79a34f6444cd62f6a243bb"},{"fixed":"f75a5555e0049e7857eae25b60aee98b80e287ec"},{"fixed":"17d33ba7291100008360b5a354962db37ad80684"},{"fixed":"da7e4b75e50c087d2031a92f6646eb90f7045a67"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-45962.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"6.1.165"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.128"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.75"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.14"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-45962.json"}}],"schema_version":"1.7.5"}