Merge back earlier 'pm-domains' material for v4.5.

1 files changed, 10 insertions, 8 deletions

diff --git a/crypto/asymmetric_keys/x509_cert_parser.c b/crypto/asymmetric_keys/x509_cert_parser.c
index af71878dc15b..021d39c0ba75 100644
--- a/crypto/asymmetric_keys/x509_cert_parser.c
+++ b/crypto/asymmetric_keys/x509_cert_parser.c
@@ -531,7 +531,11 @@ int x509_decode_time(time64_t *_t,  size_t hdrlen,
 	if (*p != 'Z')
 		goto unsupported_time;
 
-	mon_len = month_lengths[mon];
+	if (year < 1970 ||
+	    mon < 1 || mon > 12)
+		goto invalid_time;
+
+	mon_len = month_lengths[mon - 1];
 	if (mon == 2) {
 		if (year % 4 == 0) {
 			mon_len = 29;
@@ -543,14 +547,12 @@ int x509_decode_time(time64_t *_t,  size_t hdrlen,
 		}
 	}
 
-	if (year < 1970 ||
-	    mon < 1 || mon > 12 ||
-	    day < 1 || day > mon_len ||
-	    hour < 0 || hour > 23 ||
-	    min < 0 || min > 59 ||
-	    sec < 0 || sec > 59)
+	if (day < 1 || day > mon_len ||
+	    hour > 23 ||
+	    min > 59 ||
+	    sec > 59)
 		goto invalid_time;
-	
+
 	*_t = mktime64(year, mon, day, hour, min, sec);
 	return 0;