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authorKurt Roeckx <kurt@roeckx.be>2016-07-17 15:28:09 +0200
committerKurt Roeckx <kurt@roeckx.be>2016-07-20 19:25:16 +0200
commit1618679ac478c8f41fc5f320fb4d8a33883b3868 (patch)
tree226153f11e35f97136574bdaaec6ce6dc5f745ec /crypto/bio
parent69588edbaa424beb71c6a9b1be416588232cb78c (diff)
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 <rsalz@openssl.org> GH: #1325
Diffstat (limited to 'crypto/bio')
-rw-r--r--crypto/bio/b_print.c2
1 files changed, 1 insertions, 1 deletions
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)