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…

Code

The project this record applies to. Exploit listings stay in References.

• Repository · git.kernel.org
• Repository · git.kernel.org
• Repository · git.kernel.org

Timeline

Detection, updates, and resolution for this record.

1. Dec 16, 2025 · NIST NVD

   Detected

   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.

2. Oct 14, 2026 · NIST NVD

   Updated

   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.

Sources

• CVE.orgVulnerability recordCVE-2025-68188

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2025-68188

  30-day exploitation probability 0.2%

  first.org
• NIST NVDVulnerability recordCVE-2025-68188

  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.

  nvd.nist.gov

References

• Reference · git.kernel.org
• Reference · git.kernel.org
• Reference · git.kernel.org