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-rw-r--r--libcacard/cac.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/libcacard/cac.c b/libcacard/cac.c
index ae8c3784b9..f38fdceddd 100644
--- a/libcacard/cac.c
+++ b/libcacard/cac.c
@@ -115,6 +115,7 @@ cac_applet_pki_process_apdu(VCard *card, VCardAPDU *apdu,
VCardAppletPrivate *applet_private;
int size, next;
unsigned char *sign_buffer;
+ bool retain_sign_buffer = FALSE;
vcard_7816_status_t status;
VCardStatus ret = VCARD_FAIL;
@@ -178,6 +179,7 @@ cac_applet_pki_process_apdu(VCard *card, VCardAPDU *apdu,
pki_applet->sign_buffer = sign_buffer;
pki_applet->sign_buffer_len = size;
*response = vcard_make_response(VCARD7816_STATUS_SUCCESS);
+ retain_sign_buffer = TRUE;
break;
case 0x00:
/* we now have the whole buffer, do the operation, result will be
@@ -200,9 +202,11 @@ cac_applet_pki_process_apdu(VCard *card, VCardAPDU *apdu,
VCARD7816_STATUS_ERROR_P1_P2_INCORRECT);
break;
}
- g_free(sign_buffer);
- pki_applet->sign_buffer = NULL;
- pki_applet->sign_buffer_len = 0;
+ if (!retain_sign_buffer) {
+ g_free(sign_buffer);
+ pki_applet->sign_buffer = NULL;
+ pki_applet->sign_buffer_len = 0;
+ }
ret = VCARD_DONE;
break;
case CAC_READ_BUFFER: