[PATCH 8/8] Replace memset() with memzero_explicit()

* [PATCH 8/8] Replace memset() with memzero_explicit()
@ 2021-11-16 11:39 Sandy Harris
  0 siblings, 0 replies; only message in thread
From: Sandy Harris @ 2021-11-16 11:39 UTC (permalink / raw)
  To: LKML, Linux Crypto Mailing List, David S. Miller, Herbert Xu,
	Greg Kroah-Hartman

Replace memset(address,0,bytes) which may be optimised
away with memzero_explicit(address,bytes) which resists
such optimisation

---
 crypto/rmd160.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crypto/rmd160.c b/crypto/rmd160.c
index c5fe4034b153..a80f783d5a4f 100644
--- a/crypto/rmd160.c
+++ b/crypto/rmd160.c
@@ -329,7 +329,7 @@ static int rmd160_final(struct shash_desc *desc, u8 *out)
         dst[i] = cpu_to_le32p(&rctx->state[i]);

     /* Wipe context */
-    memset(rctx, 0, sizeof(*rctx));
+    memzero_explicit(rctx, sizeof(*rctx));

     return 0;
 }
--

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