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authorDenys Vlasenko <vda.linux@googlemail.com>2018-09-03 08:36:51 (GMT)
committerDenys Vlasenko <vda.linux@googlemail.com>2018-09-03 08:36:51 (GMT)
commit28d91d754e423fd0df584bbfa9b903eacac21224 (patch)
tree950e0e3d367f07639ab00e96db34d537a2cfc620
parent3060992ec94722b4f8f3711a1884270c81a6e5f5 (diff)
downloadbusybox-28d91d754e423fd0df584bbfa9b903eacac21224.tar.gz
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libbb: fix potential NULL pointer use
function old new delta unicode_conv_to_printable2 193 216 +23 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--libbb/unicode.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libbb/unicode.c b/libbb/unicode.c
index 9c4da50..d378175 100644
--- a/libbb/unicode.c
+++ b/libbb/unicode.c
@@ -1121,6 +1121,8 @@ static char* FAST_FUNC unicode_conv_to_printable2(uni_stat_t *stats, const char
dst[dst_len++] = ' ';
}
}
+ if (!dst) /* for example, if input was "" */
+ dst = xzalloc(1);
dst[dst_len] = '\0';
if (stats) {
stats->byte_count = dst_len;