CVE-2025-68191udp_tunnel: use netdev_warn() instead of netdev_WARN()
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
Published
- 5 months later
· 5 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected cc4e3835eff474aa274d6e1d18f69d9d296d3b76 – < 087f1ed450dc6e7e49ffbbbe5b78be1218c6d5e0
- affected cc4e3835eff474aa274d6e1d18f69d9d296d3b76 – < 45e4e4a8772fa1c5f6f38e82b732b3a9d8137af4
- affected cc4e3835eff474aa274d6e1d18f69d9d296d3b76 – < 7758ec35ff3e9a31558eda4f0f9eb0ddfa78a8ba
- affected cc4e3835eff474aa274d6e1d18f69d9d296d3b76 – < c018a87942bf1607aeebf8dba5a210ca9a09a0fd
- affected cc4e3835eff474aa274d6e1d18f69d9d296d3b76 – < 51b3033088f0420b19027e3d54cd989b6ebd987e
- affected cc4e3835eff474aa274d6e1d18f69d9d296d3b76 – < 3c3b148bf8384c8a787753cf20abde1c5731f97f
- affected cc4e3835eff474aa274d6e1d18f69d9d296d3b76 – < dc2f650f7e6857bf384069c1a56b2937a1ee370d
- affected 5.9
- unaffected < 5.9
- unaffected 5.10.247 – ≤ 5.10.*
- unaffected 5.15.197 – ≤ 5.15.*
- unaffected 6.1.159 – ≤ 6.1.*
- unaffected 6.6.117 – ≤ 6.6.*
- unaffected 6.12.58 – ≤ 6.12.*
- unaffected 6.17.8 – ≤ 6.17.*
- unaffected 6.18 – ≤ *
References
References7
- https://git.kernel.org/stable/c/087f1ed450dc6e7e49ffbbbe5b78be1218c6d5e0 (opens in a new tab)
- https://git.kernel.org/stable/c/45e4e4a8772fa1c5f6f38e82b732b3a9d8137af4 (opens in a new tab)
- https://git.kernel.org/stable/c/7758ec35ff3e9a31558eda4f0f9eb0ddfa78a8ba (opens in a new tab)
- https://git.kernel.org/stable/c/c018a87942bf1607aeebf8dba5a210ca9a09a0fd (opens in a new tab)
- https://git.kernel.org/stable/c/51b3033088f0420b19027e3d54cd989b6ebd987e (opens in a new tab)
- https://git.kernel.org/stable/c/3c3b148bf8384c8a787753cf20abde1c5731f97f (opens in a new tab)
- https://git.kernel.org/stable/c/dc2f650f7e6857bf384069c1a56b2937a1ee370d (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-203705 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-68191)Record last updated .