CVE-2026-46333: Local Root Privilege Escalation and Credential Disclosure in the Linux Kernel ptrace Path

The Qualys Threat Research Unit TRU has discovered and published the full advisory for CVE-2026-46333, a logic flaw in the Linux kernel's ptracemayaccess function that permits an unprivileged local user to disclose sensitive files and execute arbitrary commands as root on default installations of...

kernel: IA32 System Call Entry Point Vulnerability

The IA32 system call emulation functionality in arch/x86/ia32/ia32entry.S in the Linux kernel before 2.6.36-rc4-git2 on the x8664 platform does not zero extend the %eax register after the 32-bit entry path to ptrace is used, which allows local users to gain privileges by triggering an out-of-boun...