diff options
| -rw-r--r-- | fs/nfsd/nfsctl.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index 3d93b2064ce..5a936c14f6f 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -938,6 +938,8 @@ static ssize_t __write_ports(struct file *file, char *buf, size_t size) char transport[16]; int port; if (sscanf(buf, "%15s %4d", transport, &port) == 2) { + if (port < 1 || port > 65535) + return -EINVAL; err = nfsd_create_serv(); if (!err) { err = svc_create_xprt(nfsd_serv, @@ -960,7 +962,7 @@ static ssize_t __write_ports(struct file *file, char *buf, size_t size) char transport[16]; int port; if (sscanf(&buf[1], "%15s %4d", transport, &port) == 2) { - if (port == 0) + if (port < 1 || port > 65535) return -EINVAL; if (nfsd_serv) { xprt = svc_find_xprt(nfsd_serv, transport, |