{"id":"CVE-2026-72236","state":"PUBLISHED","title":"s390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init()\n\nev variable is userspace controlled via event->attr.config and used\nas an array index after bounds checking, but without speculation\nbarriers.\n\nAdd the missing array_index_nospec() call to prevent speculative\nexecution.","publishedAt":"2026-08-15T05:54:25.891Z","updatedAt":"2026-08-23T12:47:04.750Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"212188a596d17d519842ef2173150315735b54e1","status":"affected","lessThan":"4c249b214c686f9a1c4cf4f32893b59b189e897a","versionType":"git"},{"version":"212188a596d17d519842ef2173150315735b54e1","status":"affected","lessThan":"27206bb57c47bdbe33bccc78fa7f7e2a719a06b9","versionType":"git"},{"version":"212188a596d17d519842ef2173150315735b54e1","status":"affected","lessThan":"a21f3615c88421df81060b6ff89220fd34094c4d","versionType":"git"},{"version":"212188a596d17d519842ef2173150315735b54e1","status":"affected","lessThan":"fa1ebae4206e6afc8caa642e9eb1bbe39a9a724f","versionType":"git"},{"version":"212188a596d17d519842ef2173150315735b54e1","status":"affected","lessThan":"f79dff8c721bbb1f3fc312ea55e0551c2cc28801","versionType":"git"},{"version":"212188a596d17d519842ef2173150315735b54e1","status":"affected","lessThan":"49145bce539117db4b6e9e83c0e5ef528e361050","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kernel/perf_cpum_cf.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.4","versionType":"semver"},{"version":"6.1.184","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kernel/perf_cpum_cf.c"]}],"references":["https://git.kernel.org/stable/c/4c249b214c686f9a1c4cf4f32893b59b189e897a","https://git.kernel.org/stable/c/27206bb57c47bdbe33bccc78fa7f7e2a719a06b9","https://git.kernel.org/stable/c/a21f3615c88421df81060b6ff89220fd34094c4d","https://git.kernel.org/stable/c/fa1ebae4206e6afc8caa642e9eb1bbe39a9a724f","https://git.kernel.org/stable/c/f79dff8c721bbb1f3fc312ea55e0551c2cc28801","https://git.kernel.org/stable/c/49145bce539117db4b6e9e83c0e5ef528e361050"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72236.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72236","state":"PUBLISHED","datePublished":"2026-08-15T05:54:25.891Z","dateUpdated":"2026-08-23T12:47:04.750Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-09T03:40:39.914Z"},"containers":{"cna":{"title":"s390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init()\n\nev variable is userspace controlled via event->attr.config and used\nas an array index after bounds checking, but without speculation\nbarriers.\n\nAdd the missing array_index_nospec() call to prevent speculative\nexecution."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"212188a596d17d519842ef2173150315735b54e1","status":"affected","lessThan":"4c249b214c686f9a1c4cf4f32893b59b189e897a","versionType":"git"},{"version":"212188a596d17d519842ef2173150315735b54e1","status":"affected","lessThan":"27206bb57c47bdbe33bccc78fa7f7e2a719a06b9","versionType":"git"},{"version":"212188a596d17d519842ef2173150315735b54e1","status":"affected","lessThan":"a21f3615c88421df81060b6ff89220fd34094c4d","versionType":"git"},{"version":"212188a596d17d519842ef2173150315735b54e1","status":"affected","lessThan":"fa1ebae4206e6afc8caa642e9eb1bbe39a9a724f","versionType":"git"},{"version":"212188a596d17d519842ef2173150315735b54e1","status":"affected","lessThan":"f79dff8c721bbb1f3fc312ea55e0551c2cc28801","versionType":"git"},{"version":"212188a596d17d519842ef2173150315735b54e1","status":"affected","lessThan":"49145bce539117db4b6e9e83c0e5ef528e361050","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kernel/perf_cpum_cf.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.4","versionType":"semver"},{"version":"6.1.184","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kernel/perf_cpum_cf.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/4c249b214c686f9a1c4cf4f32893b59b189e897a"},{"url":"https://git.kernel.org/stable/c/27206bb57c47bdbe33bccc78fa7f7e2a719a06b9"},{"url":"https://git.kernel.org/stable/c/a21f3615c88421df81060b6ff89220fd34094c4d"},{"url":"https://git.kernel.org/stable/c/fa1ebae4206e6afc8caa642e9eb1bbe39a9a724f"},{"url":"https://git.kernel.org/stable/c/f79dff8c721bbb1f3fc312ea55e0551c2cc28801"},{"url":"https://git.kernel.org/stable/c/49145bce539117db4b6e9e83c0e5ef528e361050"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-23T12:47:04.750Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"6.1.184"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}