CVE-2025-68191

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxcc4e3835eff474aa274d6e1d18f69d9d296d3b76 < 087f1ed450dc6e7e49ffbbbe5b78be1218c6d5e0affected
LinuxLinuxcc4e3835eff474aa274d6e1d18f69d9d296d3b76 < 45e4e4a8772fa1c5f6f38e82b732b3a9d8137af4affected
LinuxLinuxcc4e3835eff474aa274d6e1d18f69d9d296d3b76 < 7758ec35ff3e9a31558eda4f0f9eb0ddfa78a8baaffected
LinuxLinuxcc4e3835eff474aa274d6e1d18f69d9d296d3b76 < c018a87942bf1607aeebf8dba5a210ca9a09a0fdaffected
LinuxLinuxcc4e3835eff474aa274d6e1d18f69d9d296d3b76 < 51b3033088f0420b19027e3d54cd989b6ebd987eaffected
LinuxLinuxcc4e3835eff474aa274d6e1d18f69d9d296d3b76 < 3c3b148bf8384c8a787753cf20abde1c5731f97faffected
LinuxLinuxcc4e3835eff474aa274d6e1d18f69d9d296d3b76 < dc2f650f7e6857bf384069c1a56b2937a1ee370daffected
LinuxLinux5.9affected
LinuxLinux0 < 5.9unaffected
LinuxLinux5.10.247 <= 5.10.*unaffected
LinuxLinux5.15.197 <= 5.15.*unaffected
LinuxLinux6.1.159 <= 6.1.*unaffected
LinuxLinux6.6.117 <= 6.6.*unaffected
LinuxLinux6.12.58 <= 6.12.*unaffected
LinuxLinux6.17.8 <= 6.17.*unaffected
LinuxLinux6.18 <= *unaffected

Weaknesses

References