| Message ID | 1405328477-13484-5-git-send-email-pshilovsky@samba.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/fs/cifs/file.c b/fs/cifs/file.c index f6cb765..2927f02 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -3048,7 +3048,9 @@ again: } else { rc = cifs_readdata_to_iov(rdata, to); } - + /* if there was a short read -- discard anything left */ + if (rdata->got_bytes && rdata->got_bytes < rdata->bytes) + rc = -ENODATA; } list_del_init(&rdata->list); kref_put(&rdata->refcount, cifs_uncached_readdata_release);
If there was a short read in the middle of the rdata list, we can end up with a corrupt output buffer. Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> --- fs/cifs/file.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)