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Linux kernel flaw opens root-only files to unprivileged users (opens in new tab)

Covers 3 stories including 0xdeadbeefnetwork/ssh-keysign-pwn: Steal SSH host private keys and /etc/shadow via the ptrace_may_access mm-NULL bypass + pidfd_getfd. Pre-31e62c2ebbfd kernels.

Covers 3 related stories

0xdeadbeefnetwork/ssh-keysign-pwn: Steal SSH host private keys and /etc/shadow via the ptrace_may_access mm-NULL bypass + pidfd_getfd. Pre-31e62c2ebbfd kernels.

Discussed on Hacker News and r/linux

CVE-2026-46333 (SSH-keygen-pwn)

Discussed on Hacker News and r/linux

oss-security - Logic bug in the Linux kernel's __ptrace_may_access() function

Discussed on Hacker News and Hacker News