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| author | Eric Biggers <ebiggers@google.com> | 2016-09-30 07:44:17 +0200 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2016-09-30 07:44:17 +0200 |
| commit | cc91542ac8f29d8446ef59234796b95f0fbce09a (patch) | |
| tree | 742741c73d8ec48e8950f870ce6497786e82fdc3 | |
| parent | ext4: release bh in make_indexed_dir (diff) | |
| download | linux-cc91542ac8f29d8446ef59234796b95f0fbce09a.tar.xz linux-cc91542ac8f29d8446ef59234796b95f0fbce09a.zip | |
ext4: 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: Theodore Ts'o <tytso@mit.edu>
| -rw-r--r-- | fs/ext4/symlink.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/ext4/symlink.c b/fs/ext4/symlink.c index 0a26cbd529c8..fdf1c6154745 100644 --- a/fs/ext4/symlink.c +++ b/fs/ext4/symlink.c @@ -30,7 +30,6 @@ static const char *ext4_encrypted_get_link(struct dentry *dentry, char *caddr, *paddr = NULL; struct fscrypt_str cstr, pstr; struct fscrypt_symlink_data *sd; - loff_t size = min_t(loff_t, i_size_read(inode), PAGE_SIZE - 1); int res; u32 max_size = inode->i_sb->s_blocksize; @@ -49,7 +48,6 @@ static const char *ext4_encrypted_get_link(struct dentry *dentry, if (IS_ERR(cpage)) return ERR_CAST(cpage); caddr = page_address(cpage); - caddr[size] = 0; } /* Symlink is encrypted */ |