{"id":"CVE-2026-74370","summary":"liveupdate: fix TOCTOU race in luo_session_retrieve()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nliveupdate: fix TOCTOU race in luo_session_retrieve()\n\nExtend the scope of the rwsem_read lock in luo_session_retrieve() to\noverlap with the acquisition of the session mutex. This prevents a\nconcurrent thread from releasing and freeing the session between the\nlookup and the mutex lock.","modified":"2026-08-18T03:31:16.926925335Z","published":"2026-08-15T05:58:50.933Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74370.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/d3ae9e7fddb4036f50003d7fa1ef52801fdb961b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d944170607b872a1f93713c555ad3f0efde3a9b8"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74370.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74370"},{"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":"0153094d03df5a2e834a19c59b255649a258ae46"},{"fixed":"d944170607b872a1f93713c555ad3f0efde3a9b8"},{"fixed":"d3ae9e7fddb4036f50003d7fa1ef52801fdb961b"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74370.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74370.json"}}],"schema_version":"1.9.0"}