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| author | Jeff Layton <jlayton@redhat.com> | 2007-11-03 04:34:04 +0000 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2007-11-03 04:34:04 +0000 |
| commit | 745542e210b3b15751ea9d511321924ac36b85db (patch) | |
| tree | d1d696a239239e61f2edc2ca903dc88c32d2065d /fs | |
| parent | 7505e0525c914cdfdb54f43a7e70f038a16a5486 (diff) | |
| download | linux-745542e210b3b15751ea9d511321924ac36b85db.tar.gz linux-745542e210b3b15751ea9d511321924ac36b85db.tar.bz2 linux-745542e210b3b15751ea9d511321924ac36b85db.zip | |
[CIFS] allow cifs_calc_signature2 to deal with a zero length iovec
Currently, cifs_calc_signature2 errors out if it gets a zero-length
iovec. Fix it to silently continue in that case.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/cifs/cifsencrypt.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index 632070b4275d..788f0ad6feda 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -99,11 +99,12 @@ static int cifs_calc_signature2(const struct kvec *iov, int n_vec, MD5Init(&context); MD5Update(&context, (char *)&key->data, key->len); for (i = 0; i < n_vec; i++) { + if (iov[i].iov_len == 0) + continue; if (iov[i].iov_base == NULL) { cERROR(1, ("null iovec entry")); return -EIO; - } else if (iov[i].iov_len == 0) - break; /* bail out if we are sent nothing to sign */ + } /* The first entry includes a length field (which does not get signed that occupies the first 4 bytes before the header */ if (i == 0) { |