{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-68293 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-68293 is a 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-2025-68293 and fix it if it is affected.\n\nWhat it is: CVE-2025-68293 is a 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-2025-68293 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-2025-68293/ (Markdown: https://insights.sbomify.com/CVE-2025-68293/index.md)","id":"CVE-2025-68293","markdown":"https://insights.sbomify.com/CVE-2025-68293/index.md","name":"CVE-2025-68293","record":{"aliases":["BELL-CVE-2025-68293","DEBIAN-CVE-2025-68293","GHSA-r3mj-3wvr-4c72","ROOT-OS-DEBIAN-13-CVE-2025-68293","UBUNTU-CVE-2025-68293"],"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 NULL pointer dereference in the Linux kernel's huge memory management allows local attackers to cause a system crash.","user_interaction":"not_required","vuln_class":"null_dereference"},"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\nmm/huge_memory: fix NULL pointer deference when splitting folio\n\nCommit c010d47f107f (\"mm: thp: split huge page to any lower order pages\")\nintroduced an early check on the folio's order via mapping-\u003eflags before\nproceeding with the split work.\n\nThis check introduced a bug: for shmem folios in the swap cache and\ntruncated folios, the mapping pointer can be NULL.  Accessing\nmapping-\u003eflags in this state leads directly to a NULL pointer dereference.\n\nThis commit fixes the issue by moving the check for mapping != NULL before\nany attempt to access mapping-\u003eflags.","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":"mm/huge_memory: fix NULL pointer deference when splitting folio","id":"CVE-2025-68293","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2025"},"n_packages":0,"n_references":3,"next":{"headline":"io_uring/net: ensure vectored buffer node import is tied to notification","id":"CVE-2025-68294"},"packages":[],"prev":{"headline":"mm/memfd: fix information leak in hugetlb folios","id":"CVE-2025-68292"},"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 NULL pointer dereference in the Linux kernel's huge memory management allows local attackers to cause a system crash.","url":"https://insights.sbomify.com/CVE-2025-68293/"}