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udf: avoid info leak on export 

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>
This commit is contained in:
Mathias Krause 2012-07-12 08:46:55 +02:00 committed by Jan Kara
parent fe685aabf7
commit 0143fc5e9f
1 changed files with 1 additions and 0 deletions
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1
fs/udf/namei.c
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@ -1279,6 +1279,7 @@ static int udf_encode_fh(struct inode *inode, __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 (parent) {