privsep: Allow dup3 on Linux

It seems some libc will really call dup3 rather than dup2. Another fix for #260.
NetworkConfiguration · Nov 10, 2023 · 4bb0c8f · 4bb0c8f
1 parent 1064814
commit 4bb0c8f
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/privsep-linux.c b/src/privsep-linux.c
@@ -313,6 +313,9 @@ static struct sock_filter ps_seccomp_filter[] = {
 #ifdef __NR_dup2
 	SECCOMP_ALLOW(__NR_dup2), // daemonising dups stderr to stdin(/dev/null)
 #endif
+#ifdef __NR_dup3
+	SECCOMP_ALLOW(__NR_dup3),
+#endif
 #ifdef __NR_epoll_ctl
 	SECCOMP_ALLOW(__NR_epoll_ctl),
 #endif