Fixed carry propagation bug in P-256 'm62' implementation (found by Auke Zeilstra...

[BearSSL] / src / x509 / x509_decoder.c

diff --git a/src/x509/x509_decoder.c b/src/x509/x509_decoder.c
index 42620c6..8dd970f 100644 (file)
--- a/src/x509/x509_decoder.c
+++ b/src/x509/x509_decoder.c
@@ -75,7 +75,7 @@ void br_x509_decoder_run(void *t0ctx);
 
 #include "inner.h"
 
-#define CTX   ((br_x509_decoder_context *)((unsigned char *)t0ctx - offsetof(br_x509_decoder_context, cpu)))
+#define CTX   ((br_x509_decoder_context *)(void *)((unsigned char *)t0ctx - offsetof(br_x509_decoder_context, cpu)))
 #define CONTEXT_NAME   br_x509_decoder_context
 
 /* see bearssl_x509.h */
@@ -743,7 +743,7 @@ br_x509_decoder_run(void *t0ctx)
                                /* set32 */
 
        uint32_t addr = T0_POP();
-       *(uint32_t *)((unsigned char *)CTX + addr) = T0_POP();
+       *(uint32_t *)(void *)((unsigned char *)CTX + addr) = T0_POP();
 
                                }
                                break;