diff options
| author | Kyle Evans <kevans@FreeBSD.org> | 2026-06-25 17:02:47 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2026-06-30 02:32:58 +0000 |
| commit | f887a2c04c9ec09c468f6bb0dd510588bf5b1225 (patch) | |
| tree | d891d894583dc63510325d76e4c1a866438fc913 | |
| parent | 8d086f03b9beebd1caa43549c824b269c8c6bda8 (diff) | |
kern: fix auditing of ptrace(2) syscall requests
`error` here is the return value of syscall_thread_enter() rather than
the syscall itself, so the committed audit records do not reflect
reality. This is less harmful than them recording an error when the
operation actually succeeded, but it could still possibly be used to
throw off IDS techniques with things like bsmtrace.
Approved by: so
Security: FreeBSD-SA-26:45.audit
Security: CVE-2026-49426
Reviewed by: des, kib, markj, csjp
Differential Revision: https://reviews.freebsd.org/D57847
| -rw-r--r-- | sys/kern/kern_sig.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c index 40da0a79b810..ac1dc00348c1 100644 --- a/sys/kern/kern_sig.c +++ b/sys/kern/kern_sig.c @@ -2765,7 +2765,7 @@ ptrace_syscallreq(struct thread *td, struct proc *p, td->td_errno = nerror; if (audited) - AUDIT_SYSCALL_EXIT(error, td); + AUDIT_SYSCALL_EXIT(tsr->ts_ret.sr_error, td); if (!sy_thr_static) syscall_thread_exit(td, se); } |