| commit | 1fc8a117865b54590acd773a55fbac9221b018f0 | [log] [tgz] |
|---|---|---|
| author | Joel Becker <joel.becker@oracle.com> | Wed Sep 29 17:33:05 2010 -0700 |
| committer | Joel Becker <joel.becker@oracle.com> | Wed Sep 29 17:33:05 2010 -0700 |
| tree | b086c52bcc77ab3816653719f0c6ad4e33c5c74c | |
| parent | 899611ee7d373e5eeda08e9a8632684e1ebbbf00 [diff] |
ocfs2: Don't walk off the end of fast symlinks. ocfs2 fast symlinks are NUL terminated strings stored inline in the inode data area. However, disk corruption or a local attacker could, in theory, remove that NUL. Because we're using strlen() (my fault, introduced in a731d1 when removing vfs_follow_link()), we could walk off the end of that string. Signed-off-by: Joel Becker <joel.becker@oracle.com> Cc: stable@kernel.org