Date: Tue, 30 Jun 2026 17:20:16 +0000 From: Mark Johnston <markj@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Cc: Kyle Evans <kevans@FreeBSD.org> Subject: git: ec1989960781 - stable/15 - kern: fix auditing of ptrace(2) syscall requests Message-ID: <6a43fad0.44f4f.6304858d@gitrepo.freebsd.org>
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The branch stable/15 has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=ec19899607813702d94b13798a9ed78dffdce719 commit ec19899607813702d94b13798a9ed78dffdce719 Author: Kyle Evans <kevans@FreeBSD.org> AuthorDate: 2026-06-25 17:02:47 +0000 Commit: Mark Johnston <markj@FreeBSD.org> CommitDate: 2026-06-30 17:00:27 +0000 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 --- sys/kern/kern_sig.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c index e48997ed966a..fed5b62ee1c7 100644 --- a/sys/kern/kern_sig.c +++ b/sys/kern/kern_sig.c @@ -2766,7 +2766,7 @@ 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); }home | help
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