Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: atm: fix /proc/net/atm/lec handling /proc/net/atm/lec must ensure safety against devlec changes. It appears that there were calls to devput without prior calls to devhold, leading to imbalance and UAF Use-After-Fault errors...