CVE-2025-38587: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Debian Debian Linux: version 11.0 only
• Linux Linux Kernel: from 6.1.128, before 6.1.148 (fixed in 6.1.148); from 6.6.75, before 6.6.102 (fixed in 6.6.102); from 6.11.11, before 6.12 (fixed in 6.12); from 6.12.2, before 6.12.42 (fixed in 6.12.42); from 6.13, before 6.15.10 (fixed in 6.15.10); from 6.16, before 6.16.1 (fixed in 6.16.1)

Published 2025-08-19. Last modified 2026-06-17.