{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-72236 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-72236 is a vulnerability in Linux, published on 15 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-72236 and fix it if it is affected.\n\nWhat it is: CVE-2026-72236 is a vulnerability in Linux, published on 15 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-72236 in the wild and no public exploit code.\n\nAffected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-72236/ (Markdown: https://insights.sbomify.com/CVE-2026-72236/index.md)","id":"CVE-2026-72236","markdown":"https://insights.sbomify.com/CVE-2026-72236/index.md","name":"CVE-2026-72236","record":{"aliases":["BELL-CVE-2026-72236","DEBIAN-CVE-2026-72236","GHSA-54pj-2wqr-j294","UBUNTU-CVE-2026-72236"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A missing speculation barrier in the Linux kernel s390 perf driver allows local attackers to potentially read sensitive memory via speculative execution.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"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-\u003eattr.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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"s390/perf_cpum_cf: Add missing array_index_nospec() to __hw_perf_event_init()","id":"CVE-2026-72236","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"perf/x86/amd/brs: Fix kernel address leakage","id":"CVE-2026-72237"},"packages":[],"prev":{"headline":"batman-adv: retrieve ethhdr after potential skb realloc on RX","id":"CVE-2026-72235"},"products":["Linux"],"published":"2026-08-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-23","vendors":["Linux"]},"summary":"A missing speculation barrier in the Linux kernel s390 perf driver allows local attackers to potentially read sensitive memory via speculative execution.","url":"https://insights.sbomify.com/CVE-2026-72236/"}