{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-68191 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-68191 is a denial of service vulnerability in Linux, published on 16 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-68191 and fix it if it is affected.\n\nWhat it is: CVE-2025-68191 is a denial of service vulnerability in Linux, published on 16 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-68191 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-2025-68191/ (Markdown: https://insights.sbomify.com/CVE-2025-68191/index.md)","id":"CVE-2025-68191","markdown":"https://insights.sbomify.com/CVE-2025-68191/index.md","name":"CVE-2025-68191","record":{"aliases":["BELL-CVE-2025-68191","DEBIAN-CVE-2025-68191","GHSA-wpgr-4vvj-xp76","ROOT-OS-DEBIAN-12-CVE-2025-68191","ROOT-OS-DEBIAN-13-CVE-2025-68191","ROOT-OS-UBUNTU-2204-CVE-2025-68191","ROOT-OS-UBUNTU-2404-CVE-2025-68191","UBUNTU-CVE-2025-68191"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A flaw in the Linux kernel UDP tunnel module causes unnecessary kernel warnings on allocation failures, potentially leading to log spam or system instability.","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\nudp_tunnel: use netdev_warn() instead of netdev_WARN()\n\nnetdev_WARN() uses WARN/WARN_ON to print a backtrace along with\nfile and line information. In this case, udp_tunnel_nic_register()\nreturning an error is just a failed operation, not a kernel bug.\n\nudp_tunnel_nic_register() can fail due to a memory allocation\nfailure (kzalloc() or udp_tunnel_nic_alloc()).\nThis is a normal runtime error and not a kernel bug.\n\nReplace netdev_WARN() with netdev_warn() accordingly.","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":"udp_tunnel: use netdev_warn() instead of netdev_WARN()","id":"CVE-2025-68191","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2025"},"n_packages":0,"n_references":7,"next":{"headline":"net: usb: qmi_wwan: initialize MAC header offset in qmimux_rx_fixup","id":"CVE-2025-68192"},"packages":[],"prev":{"headline":"drm/amdgpu/atom: Check kcalloc() for WS buffer in amdgpu_atom_execute_table_locked()","id":"CVE-2025-68190"},"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 flaw in the Linux kernel UDP tunnel module causes unnecessary kernel warnings on allocation failures, potentially leading to log spam or system instability.","url":"https://insights.sbomify.com/CVE-2025-68191/"}