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| author | Mathias Krause <minipli@googlemail.com> | 2012-07-12 08:46:54 +0200 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2014-02-10 16:11:25 -0500 |
| commit | 7ea27a8916dccec0b5854266febb09414c3de588 (patch) | |
| tree | 1a4f3197aece7dc3a00ccdb5d2b1e91d95c7956f | |
| parent | ab3487d189499530df7af9acdfbc0972aeb4f400 (diff) | |
isofs: avoid info leak on export
commit fe685aabf7c8c9f138e5ea900954d295bf229175 upstream.
For type 1 the parent_offset member in struct isofs_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>
| -rw-r--r-- | fs/isofs/export.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/isofs/export.c b/fs/isofs/export.c index ed752cb3847..344aa606eec 100644 --- a/fs/isofs/export.c +++ b/fs/isofs/export.c @@ -131,6 +131,7 @@ isofs_export_encode_fh(struct dentry *dentry, len = 3; fh32[0] = ei->i_iget5_block; fh16[2] = (__u16)ei->i_iget5_offset; /* fh16 [sic] */ + fh16[3] = 0; /* avoid leaking uninitialized data */ fh32[2] = inode->i_generation; if (connectable && !S_ISDIR(inode->i_mode)) { struct inode *parent; |