CVE-2021-47505 | Linux Kernel up to 4.19.220/5.4.164/5.10.84/5.15.7 POLLFREE Handling signalfd_poll use after free (Nessus ID 276021)
A vulnerability was found in Linux Kernel up to 4.19.220/5.4.164/5.10.84/5.15.7. It has been classified as critical. Affected by this vulnerability is the function signalfd_poll of the component POLLFREE Handling. Performing manipulation results in use after free.
This vulnerability is known as CVE-2021-47505. Access to the local network is required for this attack. No exploit is available.
Upgrading the affected component is recommended.