Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6_output() Use RCU in ip6_output() in order to use dst_dev_rcu() to prevent possible UAF. We can remove rcu_read_lock()/rcu_read_unlock() pairs from ip6_finish_output2().
References
- https://git.kernel.org/stable/c/0393f85c3241c19ba8550f04a812e7d19f6b3082
- https://git.kernel.org/stable/c/11709573cc4e48dc34c80fc7ab9ce5b159e29695
FAQ
What is CVE-2025-40158?
CVE-2025-40158 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6_output() Use RCU in ip6_output() in order to use dst_dev_rcu() to prevent possible UAF. We can remove rcu_re...
How severe is CVE-2025-40158?
CVSS scoring is not yet available for CVE-2025-40158. Check NVD for updates.
Is there a patch for CVE-2025-40158?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.