From 0c4cdb27caa40167a7369a986afcde3d1d913b06 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Mon, 30 Apr 2018 15:51:43 -0700 Subject: [PATCH] fscrypt: drop empty name check from fname_decrypt() fname_decrypt() is validating that the encrypted filename is nonempty. However, earlier a stronger precondition was already enforced: the encrypted filename must be at least 16 (FS_CRYPTO_BLOCK_SIZE) bytes. Drop the redundant check for an empty filename. Signed-off-by: Eric Biggers Signed-off-by: Theodore Ts'o --- fs/crypto/fname.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c index cc9590b5f371..c4eb3a235ae4 100644 --- a/fs/crypto/fname.c +++ b/fs/crypto/fname.c @@ -97,9 +97,6 @@ static int fname_decrypt(struct inode *inode, int res = 0; char iv[FS_CRYPTO_BLOCK_SIZE]; - if (iname->len <= 0) - return -EIO; - /* Allocate request */ req = skcipher_request_alloc(tfm, GFP_NOFS); if (!req)