Brad Spengler

@spendergrsec · Twitter · 2026-07-06 17:30 UTC

Won 80k via kCTF, unpriv userns-reachable vuln: https://lore.kernel.org/linux-cve-announce/2026050859-CVE-2026-43456-ae60@gregkh/ We fixed in March, upstream 6.6 still unfixed 4 months later.