cybercrime.clubhttps://cybercrime.club/tags/side-channel/Infrastructure security news for people who build infrastructure.Hugo -- gohugo.ioen-usTue, 29 Sep 2026 23:05:37 -0400Branch Target Reuse: New Spectre v2 Variant Leaks Linux Root Password Hash Through the cBPF JIThttps://cybercrime.club/posts/branch-target-reuse-btr-spectre-v2-linux-cbpf-jit-root-hash-leak/Tue, 29 Sep 2026 23:05:37 -0400https://cybercrime.club/posts/branch-target-reuse-btr-spectre-v2-linux-cbpf-jit-root-hash-leak/VUSec's Branch Target Reuse abuses stale indirect-branch predictions over freed JIT memory to leak a root password hash from Linux in 3-5 minutes; kernel fixes for CVE-2026-64507 and CVE-2026-64508 are merged.vulnerabilities