CVE-2025-68191
udp_tunnel: use netdev_warn() instead of netdev_WARN()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: udp_tunnel: use netdev_warn() instead of netdev_WARN() netdev_WARN() uses WARN/WARN_ON to print a backtrace along with file and line information. In this case, udp_tunnel_nic_register() returning an error is just a failed operation, not a kernel bug. udp_tunnel_nic_register() can fail due to a memory allocation failure (kzalloc() or udp_tunnel_nic_alloc()). This is a normal runtime error and not a kernel bug. Replace netdev_WARN() with netdev_warn() accordingly.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 16, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
cc4e3835eff474aa274d6e1d18f69d9d296d3b76 < 087f1ed450dc6e7e49ffbbbe5b78be1218c6d5e0 cc4e3835eff474aa274d6e1d18f69d9d296d3b76 < 45e4e4a8772fa1c5f6f38e82b732b3a9d8137af4 cc4e3835eff474aa274d6e1d18f69d9d296d3b76 < 7758ec35ff3e9a31558eda4f0f9eb0ddfa78a8ba cc4e3835eff474aa274d6e1d18f69d9d296d3b76 < c018a87942bf1607aeebf8dba5a210ca9a09a0fd cc4e3835eff474aa274d6e1d18f69d9d296d3b76 < 51b3033088f0420b19027e3d54cd989b6ebd987e cc4e3835eff474aa274d6e1d18f69d9d296d3b76 < 3c3b148bf8384c8a787753cf20abde1c5731f97f cc4e3835eff474aa274d6e1d18f69d9d296d3b76 < dc2f650f7e6857bf384069c1a56b2937a1ee370d
Linux / Linux
5.9
References
git.kernel.org: https://git.kernel.org/stable/c/087f1ed450dc6e7e49ffbbbe5b78be1218c6d5e0 git.kernel.org: https://git.kernel.org/stable/c/45e4e4a8772fa1c5f6f38e82b732b3a9d8137af4 git.kernel.org: https://git.kernel.org/stable/c/7758ec35ff3e9a31558eda4f0f9eb0ddfa78a8ba git.kernel.org: https://git.kernel.org/stable/c/c018a87942bf1607aeebf8dba5a210ca9a09a0fd git.kernel.org: https://git.kernel.org/stable/c/51b3033088f0420b19027e3d54cd989b6ebd987e git.kernel.org: https://git.kernel.org/stable/c/3c3b148bf8384c8a787753cf20abde1c5731f97f git.kernel.org: https://git.kernel.org/stable/c/dc2f650f7e6857bf384069c1a56b2937a1ee370d