{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-40174 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-40174 is a high-severity 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-2025-40174 and fix it if it is affected.\n\nWhat it is: CVE-2025-40174 is a high-severity 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-2025-40174 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-2025-40174/ (Markdown: https://insights.sbomify.com/CVE-2025-40174/index.md)","id":"CVE-2025-40174","markdown":"https://insights.sbomify.com/CVE-2025-40174/index.md","name":"CVE-2025-40174","record":{"aliases":["BELL-CVE-2025-40174","DEBIAN-CVE-2025-40174","GHSA-m7p7-jwxv-mmf9","UBUNTU-CVE-2025-40174"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_read","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A race condition in the Linux kernel x86 memory management allows attackers to bypass TLB flushes, potentially leading to information disclosure or privilege escalation.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm: Fix SMP ordering in switch_mm_irqs_off()\n\nStephen noted that it is possible to not have an smp_mb() between\nthe loaded_mm store and the tlb_gen load in switch_mm(), meaning the\nordering against flush_tlb_mm_range() goes out the window, and it\nbecomes possible for switch_mm() to not observe a recent tlb_gen\nupdate and fail to flush the TLBs.\n\n[ dhansen: merge conflict fixed by Ingo ]","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":"x86/mm: Fix SMP ordering in switch_mm_irqs_off()","id":"CVE-2025-40174","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2025"},"n_packages":0,"n_references":2,"next":{"headline":"idpf: cleanup remaining SKBs in PTP flows","id":"CVE-2025-40175"},"packages":[],"prev":{"headline":"net/ip6_tunnel: Prevent perpetual tunnel growth","id":"CVE-2025-40173"},"products":["Linux"],"published":"2025-11-12","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A race condition in the Linux kernel x86 memory management allows attackers to bypass TLB flushes, potentially leading to information disclosure or privilege escalation.","url":"https://insights.sbomify.com/CVE-2025-40174/"}