CVE-2021-47312

A vulnerability was found in the nf_tables function in the Linux kernel's netfilter subsystem. When certain conditions are met, a flow pointer can become NULL, leading to a crash when the system tries to access it during error handling. This can disrupt network filtering operations.

This vulnerability is rated as a moderate because this issue can cause a NULL pointer dereference, potentially crashing the netfilter system and affecting network traffic management, but it doesn't allow unauthorized access.

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.