crypto/ripemd160: Correct badly sized union member

struct ripemd160_ctx has a union for converting between u8[] and u32[]
data.  Unfortunately the u32 array has a miscalculated size, half the size
of the u8 array.  That means some accesses which are within the union can
technically overrun the u32 array.

Found by Coverity scan.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

diff --git a/ccan/crypto/ripemd160/ripemd160.h b/ccan/crypto/ripemd160/ripemd160.h
index 377a07df407fae01ef0b3ac0aaf8208aa62a8645..56854cff27766206b7451ae5cb09f3303dcfa2d2 100644 (file)
--- a/ccan/crypto/ripemd160/ripemd160.h
+++ b/ccan/crypto/ripemd160/ripemd160.h
@@ -49,7 +49,7 @@ struct ripemd160_ctx {
        uint32_t s[5];
        uint64_t bytes;
        union {
-               uint32_t u32[8];
+               uint32_t u32[16];
                unsigned char u8[64];
        } buf;
 #endif