CVE-2025-38587
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-08-19

Last updated on: 2025-11-03

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible infinite loop in fib6_info_uses_dev() fib6_info_uses_dev() seems to rely on RCU without an explicit protection. Like the prior fix in rt6_nlmsg_size(), we need to make sure fib6_del_route() or fib6_add_rt2node() have not removed the anchor from the list, or we risk an infinite loop.
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Meta Information
Published
2025-08-19
Last Modified
2025-11-03
Generated
2026-05-06
AI Q&A
2025-08-19
EPSS Evaluated
2026-05-05
NVD
CVE-2025-38587
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel 6.1.153
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is in the Linux kernel's IPv6 implementation, specifically in the function fib6_info_uses_dev(). The function relies on Read-Copy-Update (RCU) mechanisms without explicit protection, which can lead to an infinite loop if certain route list anchors are removed by other functions like fib6_del_route() or fib6_add_rt2node(). This issue was fixed to prevent the infinite loop by ensuring the anchors are still present before proceeding.


How can this vulnerability impact me? :

If exploited, this vulnerability could cause the Linux kernel to enter an infinite loop in the IPv6 routing code, potentially leading to system instability or denial of service due to resource exhaustion.


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