VYPR
Unrated severityNVD Advisory· Published Nov 12, 2025· Updated Apr 15, 2026

CVE-2025-40158

CVE-2025-40158

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().

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Affected products

185

Patches

Vulnerability mechanics

References

2

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