CVE-2025-38588

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Source
https://cve.org/CVERecord?id=CVE-2025-38588
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38588.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-38588
Downstream
Related
Published
2025-08-19T17:03:09.856Z
Modified
2026-03-20T12:42:55.990591Z
Summary
ipv6: prevent infinite loop in rt6_nlmsg_size()
Details

In the Linux kernel, the following vulnerability has been resolved:

ipv6: prevent infinite loop in rt6nlmsgsize()

While testing prior patch, I was able to trigger an infinite loop in rt6nlmsgsize() in the following place:

listforeachentryrcu(sibling, &f6i->fib6siblings, fib6siblings) { rt6nhnlmsgsize(sibling->fib6nh, &nexthop_len); }

This is because fib6delroute() and fib6addrt2node() uses listdelrcu(), 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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38588.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
d0ec61c9f3583b76aebdbb271f5c0d3fcccd48b2
Fixed
6d345136c9b875f065d226908a29c25cdf9343f8
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
52da02521ede55fb86546c3fffd9377b3261b91f
Fixed
e1b7932af47f92432be8303d2439d1bf77b0be23
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
34a949e7a0869dfa31a40416d2a56973fae1807b
Fixed
cd8d8bbd9ced4cc5d06d858f67d4aa87745e8f38
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
d9ccb18f83ea2bb654289b6ecf014fd267cc988b
Fixed
3c13db3e47e170bab19e574404e7b6be45ea873d
Fixed
46aeb66e9e54ed0d56c18615e1c3dbd502b327ab
Fixed
54e6fe9dd3b0e7c481c2228782c9494d653546da
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
11edcd026012ac18acee0f1514db3ed1b160fc6f

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38588.json"