4.17-stable review patch. If anyone has any objections, please let me know.
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From: Tudor-Dan Ambarus tudor.ambarus@microchip.com
[ Upstream commit ad2fdcdf75d169e7a5aec6c7cb421c0bec8ec711 ]
In crypto_authenc_setkey we save pointers to the authenc keys in a local variable of type struct crypto_authenc_keys and we don't zeroize it after use. Fix this and don't leak pointers to the authenc keys.
Signed-off-by: Tudor Ambarus tudor.ambarus@microchip.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- crypto/authenc.c | 1 + 1 file changed, 1 insertion(+)
--- a/crypto/authenc.c +++ b/crypto/authenc.c @@ -108,6 +108,7 @@ static int crypto_authenc_setkey(struct CRYPTO_TFM_RES_MASK);
out: + memzero_explicit(&keys, sizeof(keys)); return err;
badkey: