{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-40359 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-40359 is a memory corruption vulnerability in Linux, published on 16 Dec 2025. 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-2025-40359 and fix it if it is affected.\n\nWhat it is: CVE-2025-40359 is a memory corruption vulnerability in Linux, published on 16 Dec 2025. 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-2025-40359 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-2025-40359/ (Markdown: https://insights.sbomify.com/CVE-2025-40359/index.md)","id":"CVE-2025-40359","markdown":"https://insights.sbomify.com/CVE-2025-40359/index.md","name":"CVE-2025-40359","record":{"aliases":["BELL-CVE-2025-40359","DEBIAN-CVE-2025-40359","GHSA-4mfx-236h-48h4","UBUNTU-CVE-2025-40359"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A local attacker can trigger a kernel out-of-bounds read in the Intel perf subsystem, potentially causing a system crash or denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"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\nperf/x86/intel: Fix KASAN global-out-of-bounds warning\n\nWhen running \"perf mem record\" command on CWF, the below KASAN\nglobal-out-of-bounds warning is seen.\n\n  ==================================================================\n  BUG: KASAN: global-out-of-bounds in cmt_latency_data+0x176/0x1b0\n  Read of size 4 at addr ffffffffb721d000 by task dtlb/9850\n\n  Call Trace:\n\n   kasan_report+0xb8/0xf0\n   cmt_latency_data+0x176/0x1b0\n   setup_arch_pebs_sample_data+0xf49/0x2560\n   intel_pmu_drain_arch_pebs+0x577/0xb00\n   handle_pmi_common+0x6c4/0xc80\n\nThe issue is caused by below code in __grt_latency_data(). The code\ntries to access x86_hybrid_pmu structure which doesn't exist on\nnon-hybrid platform like CWF.\n\n        WARN_ON_ONCE(hybrid_pmu(event-\u003epmu)-\u003epmu_type == hybrid_big)\n\nSo add is_hybrid() check before calling this WARN_ON_ONCE to fix the\nglobal-out-of-bounds access issue.","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":"perf/x86/intel: Fix KASAN global-out-of-bounds warning","id":"CVE-2025-40359","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2025"},"n_packages":0,"n_references":3,"next":{"headline":"drm/sysfb: Do not dereference NULL pointer in plane reset","id":"CVE-2025-40360"},"packages":[],"prev":{"headline":"riscv: stacktrace: Disable KASAN checks for non-current tasks","id":"CVE-2025-40358"},"products":["Linux"],"published":"2025-12-16","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":"2026-05-11","vendors":["Linux"]},"summary":"A local attacker can trigger a kernel out-of-bounds read in the Intel perf subsystem, potentially causing a system crash or denial of service.","url":"https://insights.sbomify.com/CVE-2025-40359/"}