{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72236", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.914Z", "datePublished": "2026-08-15T05:54:25.891Z", "dateUpdated": "2026-08-23T12:47:04.750Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-23T12:47:04.750Z"}, "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": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/s390/kernel/perf_cpum_cf.c"], "versions": [{"version": "212188a596d17d519842ef2173150315735b54e1", "lessThan": "4c249b214c686f9a1c4cf4f32893b59b189e897a", "status": "affected", "versionType": "git"}, {"version": "212188a596d17d519842ef2173150315735b54e1", "lessThan": "27206bb57c47bdbe33bccc78fa7f7e2a719a06b9", "status": "affected", "versionType": "git"}, {"version": "212188a596d17d519842ef2173150315735b54e1", "lessThan": "a21f3615c88421df81060b6ff89220fd34094c4d", "status": "affected", "versionType": "git"}, {"version": "212188a596d17d519842ef2173150315735b54e1", "lessThan": "fa1ebae4206e6afc8caa642e9eb1bbe39a9a724f", "status": "affected", "versionType": "git"}, {"version": "212188a596d17d519842ef2173150315735b54e1", "lessThan": "f79dff8c721bbb1f3fc312ea55e0551c2cc28801", "status": "affected", "versionType": "git"}, {"version": "212188a596d17d519842ef2173150315735b54e1", "lessThan": "49145bce539117db4b6e9e83c0e5ef528e361050", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/s390/kernel/perf_cpum_cf.c"], "versions": [{"version": "3.4", "status": "affected"}, {"version": "0", "lessThan": "3.4", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.184", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "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"}]}]}], "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"}], "title": "s390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["arch/s390/kernel/perf_cpum_cf.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "4c249b214c686f9a1c4cf4f32893b59b189e897a", "status": "affected", "version": "212188a596d17d519842ef2173150315735b54e1", "versionType": "git"}, {"lessThan": "27206bb57c47bdbe33bccc78fa7f7e2a719a06b9", "status": "affected", "version": "212188a596d17d519842ef2173150315735b54e1", "versionType": "git"}, {"lessThan": "a21f3615c88421df81060b6ff89220fd34094c4d", "status": "affected", "version": "212188a596d17d519842ef2173150315735b54e1", "versionType": "git"}, {"lessThan": "fa1ebae4206e6afc8caa642e9eb1bbe39a9a724f", "status": "affected", "version": "212188a596d17d519842ef2173150315735b54e1", "versionType": "git"}, {"lessThan": "f79dff8c721bbb1f3fc312ea55e0551c2cc28801", "status": "affected", "version": "212188a596d17d519842ef2173150315735b54e1", "versionType": "git"}, {"lessThan": "49145bce539117db4b6e9e83c0e5ef528e361050", "status": "affected", "version": "212188a596d17d519842ef2173150315735b54e1", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["arch/s390/kernel/perf_cpum_cf.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.4"}, {"lessThan": "3.4", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.184", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-72236", "lastModified": "2026-08-23T13:16:42.093", "metrics": {}, "published": "2026-08-15T06:21:50.633", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/27206bb57c47bdbe33bccc78fa7f7e2a719a06b9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/49145bce539117db4b6e9e83c0e5ef528e361050"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4c249b214c686f9a1c4cf4f32893b59b189e897a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a21f3615c88421df81060b6ff89220fd34094c4d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f79dff8c721bbb1f3fc312ea55e0551c2cc28801"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fa1ebae4206e6afc8caa642e9eb1bbe39a9a724f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: s390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init()", "id": "2516407", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516407"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["A flaw was found in the Linux kernel's s390 performance monitoring component (`s390/perf_cpum_cf`). A userspace-controlled variable was used as an array index without proper speculation barriers. This could allow a local attacker to potentially exploit speculative execution, leading to information disclosure."], "name": "CVE-2026-72236", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72236\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72236\nhttps://lore.kernel.org/linux-cve-announce/2026081550-CVE-2026-72236-5d4f@gregkh/T"], "threat_severity": "Moderate"}

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