FreeBSD -- Incorrect audit records for ptrace(2) syscall requests

Problem Description: When auditing a system call executed via ptracePTSCREMOTE, the kernel passed the return value of an internal setup function to AUDITSYSCALLEXIT rather than the actual result of the executed system call. As a result, committed audit records for system calls which returned an...

CVE-2026-45253

The FreeBSD operating system contains a privilege escalation vulnerability in the ptrace(2) system call. Specifically, ptrace(PT_SC_REMOTE) fails to properly validate parameters for the syscall(2) and __syscall(2) meta-system calls. This missing validation allows an unprivileged local user with t...

EUVD-2026-31257

ptracePTSCREMOTE failed to properly validate parameters for the syscall2 and syscall2 meta-system calls. As a result, a user with the ability to debug a process may trigger arbitrary code execution in the kernel, even if the target process has no special privileges. The missing validation allows ...

CVE-2026-45253 Missing validation in ptrace(PT_SC_REMOTE)

ptracePTSCREMOTE failed to properly validate parameters for the syscall2 and syscall2 meta-system calls. As a result, a user with the ability to debug a process may trigger arbitrary code execution in the kernel, even if the target process has no special privileges. The missing validation allows ...

CVE-2026-45253

ptracePTSCREMOTE failed to properly validate parameters for the syscall2 and syscall2 meta-system calls. As a result, a user with the ability to debug a process may trigger arbitrary code execution in the kernel, even if the target process has no special privileges. The missing validation allows ...

FreeBSD : FreeBSD -- Missing validation in ptrace(PT_SC_REMOTE) (6c96da5e-54b6-11f1-8d7a-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 6c96da5e-54b6-11f1-8d7a-bc241121aa0a advisory. ptracePTSCREMOTE failed to properly validate parameters for the syscall2 and syscall2 meta-system calls...

FreeBSD Security Advisory - FreeBSD-SA-26:21.ptrace

FreeBSD Security Advisory - ptracePTSCREMOTE failed to properly validate parameters for the syscall2 and syscall2 meta-system calls. As a result, a user with the ability to debug a process may trigger arbitrary code execution in the kernel, even if the target process has no special privileges...

FreeBSD-SA-26:21.ptrace

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:21.ptrace Security Advisory The FreeBSD Project Topic: Missing validation in ptracePTSCREMOTE Category: core Module: ptrace Announced: 2026-05-20 Credits:...