4.14-stable review patch. If anyone has any objections, please let me know.
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From: Herbert Xu herbert@gondor.apana.org.au
commit 8c9bdab21289c211ca1ca6a5f9b7537b4a600a02 upstream.
The buffer rctx->ext contains potentially sensitive data and should be freed with kzfree.
Cc: stable@vger.kernel.org Fixes: 700cb3f5fe75 ("crypto: lrw - Convert to skcipher") Reported-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- crypto/lrw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/crypto/lrw.c +++ b/crypto/lrw.c @@ -313,7 +313,7 @@ static void exit_crypt(struct skcipher_r rctx->left = 0;
if (rctx->ext) - kfree(rctx->ext); + kzfree(rctx->ext); }
static int do_encrypt(struct skcipher_request *req, int err)