{"id":"CVE-2026-89439","state":"PUBLISHED","title":"platform/x86: ISST: Add a NULL check for sst_inst[]","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: ISST: Add a NULL check for sst_inst[]\n\nTo be consistent with other places, add a NULL check for failed socket\nloading by checking isst_common.sst_inst[].","publishedAt":"2026-09-11T19:43:08.745Z","updatedAt":"2026-10-21T12:47:27.422Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d805456c712f93ba8a012430f2a93bec133b6ff4","status":"affected","lessThan":"f7c9370dd1d3cedb80c635528271cab1d0bcb103","versionType":"git"},{"version":"d805456c712f93ba8a012430f2a93bec133b6ff4","status":"affected","lessThan":"49a95fe1f64f41c2e8959e525aefdb10f23b293e","versionType":"git"},{"version":"d805456c712f93ba8a012430f2a93bec133b6ff4","status":"affected","lessThan":"c280fcd53b938b70c7dee9ce1a66b32bd6e5ebaa","versionType":"git"},{"version":"d805456c712f93ba8a012430f2a93bec133b6ff4","status":"affected","lessThan":"ef7975af15126dd70ace519da7bb33f2848b9064","versionType":"git"},{"version":"d805456c712f93ba8a012430f2a93bec133b6ff4","status":"affected","lessThan":"3de2776e9d7073765c10c2326c2bda5926811ea6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.109","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.50","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.4","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c"]}],"references":["https://git.kernel.org/stable/c/f7c9370dd1d3cedb80c635528271cab1d0bcb103","https://git.kernel.org/stable/c/49a95fe1f64f41c2e8959e525aefdb10f23b293e","https://git.kernel.org/stable/c/c280fcd53b938b70c7dee9ce1a66b32bd6e5ebaa","https://git.kernel.org/stable/c/ef7975af15126dd70ace519da7bb33f2848b9064","https://git.kernel.org/stable/c/3de2776e9d7073765c10c2326c2bda5926811ea6"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/89xxx/CVE-2026-89439.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89439","state":"PUBLISHED","datePublished":"2026-09-11T19:43:08.745Z","dateUpdated":"2026-10-21T12:47:27.422Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.703Z"},"containers":{"cna":{"title":"platform/x86: ISST: Add a NULL check for sst_inst[]","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: ISST: Add a NULL check for sst_inst[]\n\nTo be consistent with other places, add a NULL check for failed socket\nloading by checking isst_common.sst_inst[]."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d805456c712f93ba8a012430f2a93bec133b6ff4","status":"affected","lessThan":"f7c9370dd1d3cedb80c635528271cab1d0bcb103","versionType":"git"},{"version":"d805456c712f93ba8a012430f2a93bec133b6ff4","status":"affected","lessThan":"49a95fe1f64f41c2e8959e525aefdb10f23b293e","versionType":"git"},{"version":"d805456c712f93ba8a012430f2a93bec133b6ff4","status":"affected","lessThan":"c280fcd53b938b70c7dee9ce1a66b32bd6e5ebaa","versionType":"git"},{"version":"d805456c712f93ba8a012430f2a93bec133b6ff4","status":"affected","lessThan":"ef7975af15126dd70ace519da7bb33f2848b9064","versionType":"git"},{"version":"d805456c712f93ba8a012430f2a93bec133b6ff4","status":"affected","lessThan":"3de2776e9d7073765c10c2326c2bda5926811ea6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.109","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.50","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.4","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/f7c9370dd1d3cedb80c635528271cab1d0bcb103"},{"url":"https://git.kernel.org/stable/c/49a95fe1f64f41c2e8959e525aefdb10f23b293e"},{"url":"https://git.kernel.org/stable/c/c280fcd53b938b70c7dee9ce1a66b32bd6e5ebaa"},{"url":"https://git.kernel.org/stable/c/ef7975af15126dd70ace519da7bb33f2848b9064"},{"url":"https://git.kernel.org/stable/c/3de2776e9d7073765c10c2326c2bda5926811ea6"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:47:27.422Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.12.109"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.18.50"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.2.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}