From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Thu, 6 May 2021 13:41:52 +0000 (+0200)
Subject: sys_linux: check if execveat is defined
X-Git-Tag: 4.1~5
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f9cbc4803d338dd2745157d2041a5b44c3316320;p=thirdparty%2Fchrony.git

sys_linux: check if execveat is defined

The syscall is missing on older systems.
---

diff --git a/sys_linux.c b/sys_linux.c
index 9f317102..50c08431 100644
--- a/sys_linux.c
+++ b/sys_linux.c
@@ -616,7 +616,9 @@ SYS_Linux_EnableSystemCallFilter(int level, SYS_ProcessContext context)
 
   const int denied_any[] = {
     SCMP_SYS(execve),
+#ifdef __NR_execveat
     SCMP_SYS(execveat),
+#endif
     SCMP_SYS(fork),
     SCMP_SYS(ptrace),
     SCMP_SYS(vfork),