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| author | Jeff Layton <jlayton@redhat.com> | 2010-07-19 18:00:17 -0400 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2010-08-02 12:40:39 +0000 |
| commit | f30b9c11847cb6bf1f7aa65b5c436800621a07dd (patch) | |
| tree | 753905eaaa4999d7afc82f251f8db872753fbf1e /fs/cifs/inode.c | |
| parent | 9f841593ff65d2f801c7f80c4ed0955d30103f50 (diff) | |
| download | lwn-f30b9c11847cb6bf1f7aa65b5c436800621a07dd.tar.gz lwn-f30b9c11847cb6bf1f7aa65b5c436800621a07dd.zip | |
cifs: don't allow cifs_iget to match inodes of the wrong type
If the type is different from what we think it should be, then don't
match the existing inode.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/inode.c')
| -rw-r--r-- | fs/cifs/inode.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 2d9cd2f269eb..a15b3a9bbff4 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -724,9 +724,14 @@ cifs_find_inode(struct inode *inode, void *opaque) { struct cifs_fattr *fattr = (struct cifs_fattr *) opaque; + /* don't match inode with different uniqueid */ if (CIFS_I(inode)->uniqueid != fattr->cf_uniqueid) return 0; + /* don't match inode of different type */ + if ((inode->i_mode & S_IFMT) != (fattr->cf_mode & S_IFMT)) + return 0; + /* * uh oh -- it's a directory. We can't use it since hardlinked dirs are * verboten. Disable serverino and return it as if it were found, the |