Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: xfrm: state: initialize state_ptrs earlier in xfrm_state_find In case of preemption, xfrm_state_look_at will find a different pcpu_id and look up states for that other CPU. If we matched a state for CPU2 in the state_cache while the lookup started on CPU1, we will jump to "found", but the "best" state that we got will be ignored and we will enter the "acquire" block. This block uses state_ptrs, which isn't initialized at this point. Let's initialize state_ptrs just after taking rcu_read_lock. This will also prevent a possible misuse in the future, if someone adjusts this function.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.12.13, < 6.12.41 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/463562f9591742be62ddde3b426a0533ed496955Patch
- https://git.kernel.org/stable/c/6bf2daafc51bcb9272c0fdff2afd38217337d0d3Patch
- https://git.kernel.org/stable/c/94d077c331730510d5611b438640a292097341f0Patch
FAQ
What is CVE-2025-38675?
CVE-2025-38675 is a vulnerability with a CVSS score of 4.7 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: xfrm: state: initialize state_ptrs earlier in xfrm_state_find In case of preemption, xfrm_state_look_at will find a different pcpu...
How severe is CVE-2025-38675?
CVE-2025-38675 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-38675?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.