Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-27 22:51:35 +00:00
Code Issues Packages Projects Releases Wiki Activity

ext4: do not unnecessarily null-terminate encrypted symlink data

Browse Source 
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>
This commit is contained in:
Eric Biggers 2016-09-30 01:44:17 -04:00 committed by Theodore Ts'o
parent e81d44778d
commit cc91542ac8
1 changed files with 0 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/ext4/symlink.c
View File

@ -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 */