From 1618679ac478c8f41fc5f320fb4d8a33883b3868 Mon Sep 17 00:00:00 2001 From: Kurt Roeckx Date: Sun, 17 Jul 2016 15:28:09 +0200 Subject: [PATCH] Cast to an unsigned type before negating llvm's ubsan reported: runtime error: negation of -9223372036854775808 cannot be represented in type 'long'; cast to an unsigned type to negate this value to itself Found using afl Reviewed-by: Rich Salz GH: #1325 --- crypto/asn1/x_long.c | 2 +- crypto/bio/b_print.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/crypto/asn1/x_long.c b/crypto/asn1/x_long.c index 0af7875201..e86e4c72c7 100644 --- a/crypto/asn1/x_long.c +++ b/crypto/asn1/x_long.c @@ -76,7 +76,7 @@ static int long_i2c(ASN1_VALUE **pval, unsigned char *cont, int *putype, * set. */ if (ltmp < 0) - utmp = -ltmp - 1; + utmp = -(unsigned long)ltmp - 1; else utmp = ltmp; clen = BN_num_bits_word(utmp); diff --git a/crypto/bio/b_print.c b/crypto/bio/b_print.c index 6808cdc6de..a46d8b160a 100644 --- a/crypto/bio/b_print.c +++ b/crypto/bio/b_print.c @@ -451,7 +451,7 @@ fmtint(char **sbuffer, if (!(flags & DP_F_UNSIGNED)) { if (value < 0) { signvalue = '-'; - uvalue = -value; + uvalue = -(unsigned LLONG)value; } else if (flags & DP_F_PLUS) signvalue = '+'; else if (flags & DP_F_SPACE) -- GitLab