CVE-2025-38588

MEDIUM

MEDIUM Priority: 0.01 BB Relevance: 36/100

Published: 2025-08-19 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local

AC: Low

PR: Low

UI: None

S: Unchanged

C: None

I: None

A: High

Description

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.

Weakness Classification (1)

CWE-835

Affected Software (14)

Vendor	Product	Version
Linux	Linux	d0ec61c9f3583b76aebdbb271f5c0d3fcccd48b2 < 6d345136c9b875f065d226908a29c25cdf9343f8
Linux	Linux	52da02521ede55fb86546c3fffd9377b3261b91f < e1b7932af47f92432be8303d2439d1bf77b0be23
Linux	Linux	34a949e7a0869dfa31a40416d2a56973fae1807b < cd8d8bbd9ced4cc5d06d858f67d4aa87745e8f38
Linux	Linux	d9ccb18f83ea2bb654289b6ecf014fd267cc988b < 3c13db3e47e170bab19e574404e7b6be45ea873d
Linux	Linux	d9ccb18f83ea2bb654289b6ecf014fd267cc988b < 46aeb66e9e54ed0d56c18615e1c3dbd502b327ab
Linux	Linux	d9ccb18f83ea2bb654289b6ecf014fd267cc988b < 54e6fe9dd3b0e7c481c2228782c9494d653546da
Linux	Linux	11edcd026012ac18acee0f1514db3ed1b160fc6f
Linux	Linux	6.1.128 < 6.1.148
Linux	Linux	6.6.75 < 6.6.102
Linux	Linux	6.12.2 < 6.12.42
Linux	Linux	6.11.11 < 6.12
Linux	Linux	6.13
debian	debian_linux	11.0
linux	linux_kernel	6.1.128 – 6.1.148