{"id":"CVE-2025-68191","summary":"udp_tunnel: use netdev_warn() instead of netdev_WARN()","details":"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.","modified":"2026-04-02T13:03:21.604987Z","published":"2025-12-16T13:43:13.146Z","related":["MGASA-2026-0017","MGASA-2026-0018"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68191.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/087f1ed450dc6e7e49ffbbbe5b78be1218c6d5e0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3c3b148bf8384c8a787753cf20abde1c5731f97f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/45e4e4a8772fa1c5f6f38e82b732b3a9d8137af4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/51b3033088f0420b19027e3d54cd989b6ebd987e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7758ec35ff3e9a31558eda4f0f9eb0ddfa78a8ba"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c018a87942bf1607aeebf8dba5a210ca9a09a0fd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dc2f650f7e6857bf384069c1a56b2937a1ee370d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68191.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-68191"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"cc4e3835eff474aa274d6e1d18f69d9d296d3b76"},{"fixed":"087f1ed450dc6e7e49ffbbbe5b78be1218c6d5e0"},{"fixed":"45e4e4a8772fa1c5f6f38e82b732b3a9d8137af4"},{"fixed":"7758ec35ff3e9a31558eda4f0f9eb0ddfa78a8ba"},{"fixed":"c018a87942bf1607aeebf8dba5a210ca9a09a0fd"},{"fixed":"51b3033088f0420b19027e3d54cd989b6ebd987e"},{"fixed":"3c3b148bf8384c8a787753cf20abde1c5731f97f"},{"fixed":"dc2f650f7e6857bf384069c1a56b2937a1ee370d"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68191.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.9.0"},{"fixed":"5.10.247"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.197"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.159"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.117"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.58"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.17.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68191.json"}}],"schema_version":"1.7.5"}