Commit 62f2730a authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'for-linus' of...

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  Smack: check for SMACK xattr validity in smack_inode_setxattr
parents 4af94f39 defc433b
......@@ -609,8 +609,12 @@ static int smack_inode_setxattr(struct dentry *dentry, const char *name,
strcmp(name, XATTR_NAME_SMACKIPOUT) == 0) {
if (!capable(CAP_MAC_ADMIN))
rc = -EPERM;
/* a label cannot be void and cannot begin with '-' */
if (size == 0 || (size > 0 && ((char *)value)[0] == '-'))
/*
* check label validity here so import wont fail on
* post_setxattr
*/
if (size == 0 || size >= SMK_LABELLEN ||
smk_import(value, size) == NULL)
rc = -EINVAL;
} else
rc = cap_inode_setxattr(dentry, name, value, size, flags);
......@@ -644,9 +648,6 @@ static void smack_inode_post_setxattr(struct dentry *dentry, const char *name,
if (strcmp(name, XATTR_NAME_SMACK))
return;
if (size >= SMK_LABELLEN)
return;
isp = dentry->d_inode->i_security;
/*
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment