@@ -27,7 +27,7 @@ void sun8i_ce_prng_exit(struct crypto_tfm *tfm)
struct sun8i_ce_rng_tfm_ctx *ctx = crypto_tfm_ctx(tfm);
memzero_explicit(ctx->seed, ctx->slen);
- kfree(ctx->seed);
+ kfree_sensitive(ctx->seed);
ctx->seed = NULL;
ctx->slen = 0;
}
@@ -39,7 +39,7 @@ int sun8i_ce_prng_seed(struct crypto_rng *tfm, const u8 *seed,
if (ctx->seed && ctx->slen != slen) {
memzero_explicit(ctx->seed, ctx->slen);
- kfree(ctx->seed);
+ kfree_sensitive(ctx->seed);
ctx->slen = 0;
ctx->seed = NULL;
}
@@ -158,7 +158,7 @@ int sun8i_ce_prng_generate(struct crypto_rng *tfm, const u8 *src,
}
memzero_explicit(d, todo);
err_iv:
- kfree(d);
+ kfree_sensitive(d);
err_mem:
return err;
}
Rename kfree() to kfree_sensitive() to make the intention of the API more explicit. fixed the following coccicheck: ./drivers/crypto/allwinner/sun8i-ce/sun8i-ce-prng.c:30:16-17: WARNING opportunity for kfree_sensitive/kvfree_sensitive (memset at line 29) ./drivers/crypto/allwinner/sun8i-ce/sun8i-ce-prng.c:42:16-17: WARNING opportunity for kfree_sensitive/kvfree_sensitive (memset at line 41) ./drivers/crypto/allwinner/sun8i-ce/sun8i-ce-prng.c:161:8-9: WARNING opportunity for kfree_sensitive/kvfree_sensitive (memset at line 109) Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> --- drivers/crypto/allwinner/sun8i-ce/sun8i-ce-prng.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)