{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-40194 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-40194 is an use after free vulnerability in Linux, published on 12 Nov 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-2025-40194 and fix it if it is affected.\n\nWhat it is: CVE-2025-40194 is an use after free vulnerability in Linux, published on 12 Nov 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-2025-40194 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-2025-40194/ (Markdown: https://insights.sbomify.com/CVE-2025-40194/index.md)","id":"CVE-2025-40194","markdown":"https://insights.sbomify.com/CVE-2025-40194/index.md","name":"CVE-2025-40194","record":{"aliases":["AZL-70094","BELL-CVE-2025-40194","DEBIAN-CVE-2025-40194","GHSA-8qw2-hj59-c25x","ROOT-OS-DEBIAN-11-CVE-2025-40194","ROOT-OS-DEBIAN-13-CVE-2025-40194","ROOT-OS-UBUNTU-2404-CVE-2025-40194","UBUNTU-CVE-2025-40194"],"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":"none","summary":"A use-after-free in the Linux kernel's intel_pstate driver can cause a system crash during CPU hot removal, requiring a kernel patch.","user_interaction":"not_required","vuln_class":"use_after_free"},"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\ncpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()\n\nThe cpufreq_cpu_put() call in update_qos_request() takes place too early\nbecause the latter subsequently calls freq_qos_update_request() that\nindirectly accesses the policy object in question through the QoS request\nobject passed to it.\n\nFortunately, update_qos_request() is called under intel_pstate_driver_lock,\nso this issue does not matter for changing the intel_pstate operation\nmode, but it theoretically can cause a crash to occur on CPU device hot\nremoval (which currently can only happen in virt, but it is formally\nsupported nevertheless).\n\nAddress this issue by modifying update_qos_request() to drop the\nreference to the policy later.","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":"cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()","id":"CVE-2025-40194","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2025"},"n_packages":0,"n_references":8,"next":{"headline":"mount: handle NULL values in mnt_ns_release()","id":"CVE-2025-40195"},"packages":[],"prev":{"headline":"xtensa: simdisk: add input size check in proc_write_simdisk","id":"CVE-2025-40193"},"products":["Linux"],"published":"2025-11-12","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 use-after-free in the Linux kernel's intel_pstate driver can cause a system crash during CPU hot removal, requiring a kernel patch.","url":"https://insights.sbomify.com/CVE-2025-40194/"}