{"api_version":"1","generated_at":"2026-08-15T08:46:03+00:00","cve":"CVE-2026-74370","urls":{"html":"https://cve.report/CVE-2026-74370","api":"https://cve.report/api/cve/CVE-2026-74370.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74370","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74370"},"summary":{"title":"liveupdate: fix TOCTOU race in luo_session_retrieve()","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:38","updated_at":"2026-08-15 06:22:38"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/d944170607b872a1f93713c555ad3f0efde3a9b8","name":"https://git.kernel.org/stable/c/d944170607b872a1f93713c555ad3f0efde3a9b8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d3ae9e7fddb4036f50003d7fa1ef52801fdb961b","name":"https://git.kernel.org/stable/c/d3ae9e7fddb4036f50003d7fa1ef52801fdb961b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74370","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74370","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0153094d03df5a2e834a19c59b255649a258ae46 d944170607b872a1f93713c555ad3f0efde3a9b8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0153094d03df5a2e834a19c59b255649a258ae46 d3ae9e7fddb4036f50003d7fa1ef52801fdb961b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/liveupdate/luo_session.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d944170607b872a1f93713c555ad3f0efde3a9b8","status":"affected","version":"0153094d03df5a2e834a19c59b255649a258ae46","versionType":"git"},{"lessThan":"d3ae9e7fddb4036f50003d7fa1ef52801fdb961b","status":"affected","version":"0153094d03df5a2e834a19c59b255649a258ae46","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/liveupdate/luo_session.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"6.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","versionStartIncluding":"6.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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."}],"providerMetadata":{"dateUpdated":"2026-08-15T05:58:50.933Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/d944170607b872a1f93713c555ad3f0efde3a9b8"},{"url":"https://git.kernel.org/stable/c/d3ae9e7fddb4036f50003d7fa1ef52801fdb961b"}],"title":"liveupdate: fix TOCTOU race in luo_session_retrieve()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74370","datePublished":"2026-08-15T05:58:50.933Z","dateReserved":"2026-08-15T05:44:03.888Z","dateUpdated":"2026-08-15T05:58:50.933Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:38","lastModifiedDate":"2026-08-15 06:22:38","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74370","Ordinal":"1","Title":"liveupdate: fix TOCTOU race in luo_session_retrieve()","CVE":"CVE-2026-74370","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74370","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"liveupdate: fix TOCTOU race in luo_session_retrieve()"}]}}}