CVE-2025-68188
Not scored
tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check()
In the Linux kernel, the following vulnerability has been resolved: tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check() Use RCU to avoid a pair of atomic operations and a potential UAF on dst_dev()->flags.
Exploit probability
0.2%
Published
December 16, 2025
Required by
Not available
Last source change
August 12, 2026
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2025-68188
View original source
In the Linux kernel, the following vulnerability has been resolved: tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check() Use RCU to avoid a pair of atomic operations and a potential UAF on dst_dev()->flags.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/06da08d9355bf8e2070459bbedbe372ccc02cc0e
- https://git.kernel.org/stable/c/b62a59c18b692f892dcb8109c1c2e653b2abc95c
- https://git.kernel.org/stable/c/bc2b881a0896c111c1041d8bb1f92a3b3873ace5
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68188.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-68188