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authorEric Biggers <ebiggers@google.com>2016-09-22 13:31:48 -0700
committerJaegeuk Kim <jaegeuk@kernel.org>2016-09-30 17:34:28 -0700
commitef68bf119788be4b468aa6d72362c8c5bbc3e073 (patch)
treed5b18da5610e05c5747ee4407eb00171f0d129d9 /fs/f2fs
parentd41065e20484c53d8976742367bb78ac248fb0d5 (diff)
f2fs: do not unnecessarily null-terminate encrypted symlink data
Null-terminating the fscrypt_symlink_data on read is unnecessary because it is not string data --- it contains binary ciphertext. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/namei.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index bfcd9da9c2eb..300aef8a2d5f 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -1015,7 +1015,6 @@ static const char *f2fs_encrypted_get_link(struct dentry *dentry,
struct fscrypt_str cstr = FSTR_INIT(NULL, 0);
struct fscrypt_str pstr = FSTR_INIT(NULL, 0);
struct fscrypt_symlink_data *sd;
- loff_t size = min_t(loff_t, i_size_read(inode), PAGE_SIZE - 1);
u32 max_size = inode->i_sb->s_blocksize;
int res;
@@ -1030,7 +1029,6 @@ static const char *f2fs_encrypted_get_link(struct dentry *dentry,
if (IS_ERR(cpage))
return ERR_CAST(cpage);
caddr = page_address(cpage);
- caddr[size] = 0;
/* Symlink is encrypted */
sd = (struct fscrypt_symlink_data *)caddr;