[git commit] libbb: fix potential NULL pointer use
Denys Vlasenko
vda.linux at googlemail.com
Mon Sep 3 08:36:51 UTC 2018
commit: https://git.busybox.net/busybox/commit/?id=28d91d754e423fd0df584bbfa9b903eacac21224
branch: https://git.busybox.net/busybox/commit/?id=refs/heads/master
function old new delta
unicode_conv_to_printable2 193 216 +23
Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
---
libbb/unicode.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libbb/unicode.c b/libbb/unicode.c
index 9c4da50d3..d378175a4 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;
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