{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-40336 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-40336 is a high-severity memory corruption vulnerability in Linux, published on 9 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-2025-40336 and fix it if it is affected.\n\nWhat it is: CVE-2025-40336 is a high-severity memory corruption vulnerability in Linux, published on 9 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-2025-40336 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-2025-40336/ (Markdown: https://insights.sbomify.com/CVE-2025-40336/index.md)","id":"CVE-2025-40336","markdown":"https://insights.sbomify.com/CVE-2025-40336/index.md","name":"CVE-2025-40336","record":{"aliases":["BELL-CVE-2025-40336","DEBIAN-CVE-2025-40336","GHSA-5gqx-mjr7-rp8x","ROOT-OS-DEBIAN-12-CVE-2025-40336","ROOT-OS-DEBIAN-13-CVE-2025-40336","ROOT-OS-UBUNTU-2204-CVE-2025-40336","ROOT-OS-UBUNTU-2404-CVE-2025-40336","UBUNTU-CVE-2025-40336"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel GPU driver","requires_auth":"low_privilege","summary":"A flaw in the Linux kernel GPU SVM driver allows mapping memory outside intended ranges, potentially leading to memory corruption and privilege escalation.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gpusvm: fix hmm_pfn_to_map_order() usage\n\nHandle the case where the hmm range partially covers a huge page (like\n2M), otherwise we can potentially end up doing something nasty like\nmapping memory which is outside the range, and maybe not even mapped by\nthe mm. Fix is based on the xe userptr code, which in a future patch\nwill directly use gpusvm, so needs alignment here.\n\nv2:\n  - Add kernel-doc (Matt B)\n  - s/fls/ilog2/ (Thomas)","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":"drm/gpusvm: fix hmm_pfn_to_map_order() usage","id":"CVE-2025-40336","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2025"},"n_packages":0,"n_references":2,"next":{"headline":"net: stmmac: Correctly handle Rx checksum offload errors","id":"CVE-2025-40337"},"packages":[],"prev":{"headline":"drm/amdgpu: validate userq input args","id":"CVE-2025-40335"},"products":["Linux"],"published":"2025-12-09","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Linux"]},"summary":"A flaw in the Linux kernel GPU SVM driver allows mapping memory outside intended ranges, potentially leading to memory corruption and privilege escalation.","url":"https://insights.sbomify.com/CVE-2025-40336/"}