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 <alexcope@xxxxxxxxxx>
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
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 5276607..0594dd6 100644
--- a/crypto/gf128mul.c
+++ b/crypto/gf128mul.c
@@ -352,8 +352,8 @@ 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 da2530e..7217fe6 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);
}
--
2.8.0.rc3.226.g39d4020
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