{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-68329 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-68329 is a denial of service vulnerability in Linux, published on 22 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-2025-68329 and fix it if it is affected.\n\nWhat it is: CVE-2025-68329 is a denial of service vulnerability in Linux, published on 22 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-2025-68329 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-2025-68329/ (Markdown: https://insights.sbomify.com/CVE-2025-68329/index.md)","id":"CVE-2025-68329","markdown":"https://insights.sbomify.com/CVE-2025-68329/index.md","name":"CVE-2025-68329","record":{"aliases":["BELL-CVE-2025-68329","DEBIAN-CVE-2025-68329","GHSA-6jcw-grc8-h79f","UBUNTU-CVE-2025-68329"],"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 warning and potential instability by splitting trace buffer VMAs, requiring a kernel patch to prevent invalid partial unmapping.","user_interaction":"not_required","vuln_class":"denial_of_service"},"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\ntracing: Fix WARN_ON in tracing_buffers_mmap_close for split VMAs\n\nWhen a VMA is split (e.g., by partial munmap or MAP_FIXED), the kernel\ncalls vm_ops-\u003eclose on each portion. For trace buffer mappings, this\nresults in ring_buffer_unmap() being called multiple times while\nring_buffer_map() was only called once.\n\nThis causes ring_buffer_unmap() to return -ENODEV on subsequent calls\nbecause user_mapped is already 0, triggering a WARN_ON.\n\nTrace buffer mappings cannot support partial mappings because the ring\nbuffer structure requires the complete buffer including the meta page.\n\nFix this by adding a may_split callback that returns -EINVAL to prevent\nVMA splits entirely.","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":"tracing: Fix WARN_ON in tracing_buffers_mmap_close for split VMAs","id":"CVE-2025-68329","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2025"},"n_packages":0,"n_references":3,"next":{"headline":"iio: accel: bmc150: Fix irq assumption regression","id":"CVE-2025-68330"},"packages":[],"prev":{"headline":"firmware: stratix10-svc: fix bug in saving controller data","id":"CVE-2025-68328"},"products":["Linux"],"published":"2025-12-22","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 warning and potential instability by splitting trace buffer VMAs, requiring a kernel patch to prevent invalid partial unmapping.","url":"https://insights.sbomify.com/CVE-2025-68329/"}