| From 11c7dbf6187a585b6045110c406cc82ef0166e8f Mon Sep 17 00:00:00 2001 |
| From: Mathias Krause <minipli@googlemail.com> |
| Date: Thu, 12 Jul 2012 08:46:55 +0200 |
| Subject: [PATCH] udf: avoid info leak on export |
| |
| commit 0143fc5e9f6f5aad4764801015bc8d4b4a278200 upstream. |
| |
| For type 0x51 the udf.parent_partref member in struct fid gets copied |
| uninitialized to userland. Fix this by initializing it to 0. |
| |
| Signed-off-by: Mathias Krause <minipli@googlemail.com> |
| Signed-off-by: Jan Kara <jack@suse.cz> |
| Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> |
| --- |
| fs/udf/namei.c | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| diff --git a/fs/udf/namei.c b/fs/udf/namei.c |
| index 75816025f95f..919fa1e5f761 100644 |
| --- a/fs/udf/namei.c |
| +++ b/fs/udf/namei.c |
| @@ -1366,6 +1366,7 @@ static int udf_encode_fh(struct dentry *de, __u32 *fh, int *lenp, |
| *lenp = 3; |
| fid->udf.block = location.logicalBlockNum; |
| fid->udf.partref = location.partitionReferenceNum; |
| + fid->udf.parent_partref = 0; |
| fid->udf.generation = inode->i_generation; |
| |
| if (connectable && !S_ISDIR(inode->i_mode)) { |
| -- |
| 1.8.5.2 |
| |
