Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf: synclinked regs must preserve subregdef Range propagation must not affect subregdef marks. Otherwise, the following example is rewritten incorrectly by the verifier when the BPFFTESTRNDHI32 flag is set: 0: call bpfktimegetns...