diff options
| author | Mathias Krause <minipli@googlemail.com> | 2012-07-12 08:46:55 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-28 12:06:04 -0700 |
| commit | cb536e41582fc565991c09ad63d4ae623870f1b0 (patch) | |
| tree | 2134d883d15e36600188ec33b9b8837436a6980a | |
| parent | 89e2149fdbd22db4c354df58f2939b8878e6f10d (diff) | |
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>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/udf/namei.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/udf/namei.c b/fs/udf/namei.c index f1dce848ef96..d8c1bb54f570 100644 --- a/fs/udf/namei.c +++ b/fs/udf/namei.c @@ -1297,6 +1297,7 @@ 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)) { |