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CVE-2025-68191

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CVE-2025-68191

Published: Dec 16, 2025

Modified: May 11, 2026

PUBLISHED

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.

VendorProductVersions

Linux

Linux

affected
cc4e3835eff474aa274d6e1d18f69d9d296d3b76 - < 087f1ed450dc6e7e49ffbbbe5b78be1218c6d5e0
affected
cc4e3835eff474aa274d6e1d18f69d9d296d3b76 - < 45e4e4a8772fa1c5f6f38e82b732b3a9d8137af4
affected
cc4e3835eff474aa274d6e1d18f69d9d296d3b76 - < 7758ec35ff3e9a31558eda4f0f9eb0ddfa78a8ba
affected
cc4e3835eff474aa274d6e1d18f69d9d296d3b76 - < c018a87942bf1607aeebf8dba5a210ca9a09a0fd
affected
cc4e3835eff474aa274d6e1d18f69d9d296d3b76 - < 51b3033088f0420b19027e3d54cd989b6ebd987e

+2 more versions

Linux

Linux

affected
5.9
unaffected
0 - < 5.9
unaffected
5.10.247 - <= 5.10.*
unaffected
5.15.197 - <= 5.15.*
unaffected
6.1.159 - <= 6.1.*

+4 more versions

References

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