X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fsignal%2Fsigismember.c;h=d3de6efb8f5bbfe9460ed45202325be3209fee9b;hb=94e920d0cd12d1ef7d82ba72d912771235710328;hp=afd29e523b83ab50e35f2815f67e12e9028c3e4d;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01;p=musl

diff --git a/src/signal/sigismember.c b/src/signal/sigismember.c
index afd29e52..d3de6efb 100644
--- a/src/signal/sigismember.c
+++ b/src/signal/sigismember.c
@@ -4,7 +4,7 @@
 int sigismember(const sigset_t *set, int sig)
 {
 	unsigned s = sig-1;
-	if (s >= 8*sizeof(sigset_t)) {
+	if (s >= 8*sizeof(sigset_t) || s-32U<3) {
 		errno = EINVAL;
 		return -1;
 	}