CVE-2026-49426
Description
AI Translation Available
When auditing a system call executed via ptrace(PT_SC_REMOTE), the kernel passed the return value of an internal setup function to AUDIT_SYSCALL_EXIT() rather than the actual result of the executed system call. As a result, committed audit records for system calls which returned an error do not reflect the true outcome of the operation. That is, they indicate that the operation succeeded when it in fact failed.
Audit records for system calls executed via ptrace(PT_SC_REMOTE) may show an incorrect error status. An attacker with the ability to debug a process could use this to produce misleading audit trails, potentially undermining audit-based Intrusion Detection Systems (IDS).
223
Omission of Security-relevant Information
DraftCommon Consequences
Security Scopes Affected:
Non-Repudiation
Potential Impacts:
Hide Activities
Applicable Platforms
All platforms may be affected
224
Obscured Security-relevant Information by Alternate Name
IncompleteCommon Consequences
Security Scopes Affected:
Non-Repudiation
Access Control
Potential Impacts:
Hide Activities
Gain Privileges Or Assume Identity
Applicable Platforms
All platforms may be affected
https://security.freebsd.org/advisories/FreeBSD-SA-26:45.audit.asc