CVE-2025-71086: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: net: rose: fix invalid array index in rose_kill_by_device() rose_kill_by_device() collects sockets into a local array[] and then iterates over them to disconnect sockets bound to a device being brought down. The loop mistakenly indexes array[cnt] instead of array[i]. For cnt < ARRAY_SIZE(array), this reads an uninitialized entry; for cnt == ARRAY_SIZE(array), it is an out-of-bounds read. Either case can lead to an invalid socket pointer dereference and also leaks references taken via sock_hold(). Fix the index to use i.

Affected products

• Linux Linux Kernel: from 4.19.304, before 4.20 (fixed in 4.20); from 5.4.266, before 5.5 (fixed in 5.5); from 5.10.206, before 5.10.248 (fixed in 5.10.248); from 5.15.146, before 5.15.198 (fixed in 5.15.198); from 6.1.70, before 6.1.160 (fixed in 6.1.160); from 6.6.9, before 6.6.120 (fixed in 6.6.120); …

Published 2026-01-13. Last modified 2026-07-14.