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Commit 75aa0a7c authored by Alex Cope's avatar Alex Cope Committed by Herbert Xu
Browse files

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: default avatarAlex Cope <alexcope@google.com>
Signed-off-by: default avatarEric Biggers <ebiggers@google.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent b516b88a

crypto/gf128mul.c

+2 −2
Original line number Diff line number Diff line
@@ -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);

include/crypto/gf128mul.h

+1 −1
Original line number Diff line number Diff line
@@ -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);

}