Description
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.
Metrics
No CVSS score has been published yet.
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= cc4e3835eff474aa274d6e1d18f69d9d296d3b76, < 087f1ed450dc6e7e49ffbbbe5b78be1218c6d5e0; >= cc4e3835eff474aa274d6e1d18f69d9d296d3b76, < 45e4e4a8772fa1c5f6f38e82b732b3a9d8137af4; >= cc4e3835eff474aa274d6e1d18f69d9d296d3b76, < 7758ec35ff3e9a31558eda4f0f9eb0ddfa78a8ba; >= cc4e3835eff474aa274d6e1d18f69d9d296d3b76, < c018a87942bf1607aeebf8dba5a210ca9a09a0fd; >= cc4e3835eff474aa274d6e1d18f69d9d296d3b76, < 51b3033088f0420b19027e3d54cd989b6ebd987e; >= cc4e3835eff474aa274d6e1d18f69d9d296d3b76, < 3c3b148bf8384c8a787753cf20abde1c5731f97f; >= cc4e3835eff474aa274d6e1d18f69d9d296d3b76, < dc2f650f7e6857bf384069c1a56b2937a1ee370d |
| Linux | Linux | 5.9 |
References
- https://git.kernel.org/stable/c/087f1ed450dc6e7e49ffbbbe5b78be1218c6d5e0
- https://git.kernel.org/stable/c/3c3b148bf8384c8a787753cf20abde1c5731f97f
- https://git.kernel.org/stable/c/45e4e4a8772fa1c5f6f38e82b732b3a9d8137af4
- https://git.kernel.org/stable/c/51b3033088f0420b19027e3d54cd989b6ebd987e
- https://git.kernel.org/stable/c/7758ec35ff3e9a31558eda4f0f9eb0ddfa78a8ba
- https://git.kernel.org/stable/c/c018a87942bf1607aeebf8dba5a210ca9a09a0fd
- https://git.kernel.org/stable/c/dc2f650f7e6857bf384069c1a56b2937a1ee370d
Timeline
- Published
- Dec 16, 2025
- Last modified
- Oct 14, 2026
- NVD status
- Deferred