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[06/15] fscrypt: don't clear flags on crypto transform

Message ID 20180430225149.183514-7-ebiggers3@gmail.com (mailing list archive)
State Accepted
Headers show

Commit Message

Eric Biggers April 30, 2018, 10:51 p.m. UTC 
From: Eric Biggers <ebiggers@google.com>

fscrypt is clearing the flags on the crypto_skcipher it allocates for
each inode.  But, this is unnecessary and may cause problems in the
future because it will even clear flags that are meant to be internal to
the crypto API, e.g. CRYPTO_TFM_NEED_KEY.

Remove the unnecessary flag clearing.

Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/crypto/keyinfo.c | 1 -
 1 file changed, 1 deletion(-)
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Patch

diff --git a/fs/crypto/keyinfo.c b/fs/crypto/keyinfo.c
index d09df8f751df..0f6a65c6483b 100644
--- a/fs/crypto/keyinfo.c
+++ b/fs/crypto/keyinfo.c
@@ -325,7 +325,6 @@  int fscrypt_get_encryption_info(struct inode *inode)
 		goto out;
 	}
 	crypt_info->ci_ctfm = ctfm;
-	crypto_skcipher_clear_flags(ctfm, ~0);
 	crypto_skcipher_set_flags(ctfm, CRYPTO_TFM_REQ_WEAK_KEY);
 	/*
 	 * if the provided key is longer than keysize, we use the first