In the Linux kernel, the following vulnerability has been resolved:
ipv6: prevent infinite loop in rt6_nlmsg_size()
While testing prior patch, I was able to trigger
an infinite loop in rt6_nlmsg_size() in the following place:
list_for_each_entry_rcu(sibling, &f6i->fib6_siblings,
fib6_siblings) {
rt6_nh_nlmsg_size(sibling->fib6_nh, &nexthop_len);
}
This is because fib6_del_route() and fib6_add_rt2node()
uses list_del_rcu(), which can confuse rcu readers,
because they might no longer see the head of the list.
Restart the loop if f6i->fib6_nsiblings is zero.
CVSS
No CVSS.
References
Configurations
No configuration.
History
20 Aug 2025, 14:40
| Type | Values Removed | Values Added |
|---|---|---|
| Summary |
|
19 Aug 2025, 17:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-08-19 17:15
Updated : 2025-08-20 14:40
NVD link : CVE-2025-38588
Mitre link : CVE-2025-38588
CVE.ORG link : CVE-2025-38588
JSON object : View
Products Affected
No product.
CWE
No CWE.