Expired Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-bootwrapper (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL6-KERNELBOOTWRAPPER-13943878
- published14 Nov 2025
- disclosed12 Nov 2025
Introduced: 12 Nov 2025
CVE-2025-40158 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:6.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-bootwrapper package and not the kernel-bootwrapper package as distributed by RHEL.
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().