1 files changed, 2 insertions, 0 deletions

diff --git a/fs/ncpfs/ioctl.c b/fs/ncpfs/ioctl.c
index 79b113048eac..0a3f9b594602 100644
--- a/fs/ncpfs/ioctl.c
+++ b/fs/ncpfs/ioctl.c
@@ -525,6 +525,8 @@ static long __ncp_ioctl(struct inode *inode, unsigned int cmd, unsigned long arg
                         switch (rqdata.cmd) {
                                 case NCP_LOCK_EX:
                                 case NCP_LOCK_SH:
+                                                if (rqdata.timeout < 0)
+                                                        return -EINVAL;
                                                 if (rqdata.timeout == 0)
                                                         rqdata.timeout = NCP_LOCK_DEFAULT_TIMEOUT;
                                                 else if (rqdata.timeout > NCP_LOCK_MAX_TIMEOUT)