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-rw-r--r--udev/ykfde.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/udev/ykfde.c b/udev/ykfde.c
index 8e92ba9..35000d6 100644
--- a/udev/ykfde.c
+++ b/udev/ykfde.c
@@ -102,7 +102,7 @@ int main(int argc, char **argv) {
/* Yubikey */
YK_KEY * yk;
uint8_t slot = SLOT_CHAL_HMAC2;
- unsigned char response[64];
+ unsigned char response[SHA1_MAX_BLOCK_SIZE];
unsigned char response_hex[(SHA1_MAX_BLOCK_SIZE * 2) + 1];
char response_askpass[(SHA1_MAX_BLOCK_SIZE * 2) + 2];
/* iniparser */
@@ -230,6 +230,10 @@ out60:
closedir(dir);
out50:
+ memset(response, 0, sizeof(response));
+ memset(response_hex, 0, sizeof(response_hex));
+ memset(response_askpass, 0, sizeof(response_askpass));
+
if (!yk_close_key(yk))
perror("yk_close_key() failed");