Vulnerabilities > CVE-2021-35477 - Information Exposure Through Discrepancy vulnerability in multiple products

Summary

In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store operation does not necessarily occur before a store operation that has an attacker-controlled value.

Vulnerable Configurations