CVE-2021-47400

A vulnerability was discovered in the Linux kernel's hns3 network driver. The hns3_nic_net_open() function is designed to be called only once per device instance. However, due to insufficient checks, multiple calls to this function are possible. This can lead to scenarios where hns3_nic_net_open() is invoked concurrently, potentially causing system crashes.

This vulnerability is rated as moderate because its impact is limited by specific conditions that need to be met for exploitation.

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.

Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.