From 75aa0a7cafe951538c7cb7c5ed457a3371ec5bcd Mon Sep 17 00:00:00 2001 From: Alex Cope Date: Mon, 14 Nov 2016 11:02:54 -0800 Subject: [PATCH] crypto: gf128mul - Zero memory when freeing multiplication table GF(2^128) multiplication tables are typically used for secret information, so it's a good idea to zero them on free. Signed-off-by: Alex Cope Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu --- crypto/gf128mul.c | 4 ++-- include/crypto/gf128mul.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/crypto/gf128mul.c b/crypto/gf128mul.c index 57c85ddbd852..72015fee533d 100644 --- a/crypto/gf128mul.c +++ b/crypto/gf128mul.c @@ -310,8 +310,8 @@ void gf128mul_free_64k(struct gf128mul_64k *t) int i; for (i = 0; i < 16; i++) - kfree(t->t[i]); - kfree(t); + kzfree(t->t[i]); + kzfree(t); } EXPORT_SYMBOL(gf128mul_free_64k); diff --git a/include/crypto/gf128mul.h b/include/crypto/gf128mul.h index b611aa99f9b4..592d47e565a8 100644 --- a/include/crypto/gf128mul.h +++ b/include/crypto/gf128mul.h @@ -177,7 +177,7 @@ void gf128mul_4k_bbe(be128 *a, struct gf128mul_4k *t); static inline void gf128mul_free_4k(struct gf128mul_4k *t) { - kfree(t); + kzfree(t); }