The branch master has been updated
via e80f3b6af295133107ac709329eee16ccf9af61c (commit)
from 866e505e0d663158b0fe63a7fb7455eebacc6470 (commit)
- Log -----------------------------------------------------------------
commit e80f3b6af295133107ac709329eee16ccf9af61c
Author: Kurt Roeckx <[email protected]>
Date: Fri Nov 11 21:41:50 2016 +0100
Cast to an unsigned type before negating
llvm's ubsan reported:
runtime error: negation of -9223372036854775808 cannot be represented in
type 'int64_t' (aka 'long'); cast to an unsigned type to negate this
value to itself
Found using libfuzzer
Reviewed-by: Rich Salz <[email protected]>
GH: #1908
-----------------------------------------------------------------------
Summary of changes:
crypto/asn1/a_int.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/crypto/asn1/a_int.c b/crypto/asn1/a_int.c
index 36248df..833322e 100644
--- a/crypto/asn1/a_int.c
+++ b/crypto/asn1/a_int.c
@@ -289,7 +289,7 @@ static int asn1_get_int64(int64_t *pr, const unsigned char
*b, size_t blen,
ASN1err(ASN1_F_ASN1_GET_INT64, ASN1_R_TOO_SMALL);
return 0;
}
- *pr = -(int64_t)r;
+ *pr = -(uint64_t)r;
} else {
if (r > INT64_MAX) {
ASN1err(ASN1_F_ASN1_GET_INT64, ASN1_R_TOO_LARGE);
_____
openssl-commits mailing list
To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-commits
