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 12:12:27 -0700 |
| commit | 66de393d66371b070699ffcb6207cf1abc8b581a (patch) | |
| tree | 8a09ac4ccb2669d72e1a92653f742b639f032301 | |
| parent | 19b437682b56a924993979dff408a72e2c5380e6 (diff) | |
| download | kernel-common-66de393d66371b070699ffcb6207cf1abc8b581a.tar.gz kernel-common-66de393d66371b070699ffcb6207cf1abc8b581a.tar.bz2 kernel-common-66de393d66371b070699ffcb6207cf1abc8b581a.zip | |
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 38de8f234b94..78bff11169ea 100644 --- a/fs/udf/namei.c +++ b/fs/udf/namei.c @@ -1280,6 +1280,7 @@ 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)) { |