CVE-2021-47357

A use-after-free flaw was found in the Linux kernel’s ATM networking card driver in how a user unloads the driver's module. This flaw allows a local user to crash the system.

The bug happens during module unloading. Therefore, only a privileged user can trigger the issue. This issue not actual for Red Hat Enterprise Linux, because related part of source codes disabled.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

To mitigate this issue, prevent module atm from being loaded. Please see https://access.redhat.com/solutions/41278 for information on blacklisting a kernel module to prevent it from loading automatically.