From mboxrd@z Thu Jan 1 00:00:00 1970 From: Simon Glass Date: Tue, 8 Dec 2015 12:35:18 -0700 Subject: [U-Boot] [PATCH 1/3] serial-uclass.c: Copy at most sdev.name - 1 characters into the buffer In-Reply-To: <1449545195-18195-1-git-send-email-trini@konsulko.com> References: <1449545195-18195-1-git-send-email-trini@konsulko.com> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 7 December 2015 at 20:26, Tom Rini wrote: > Coverity notes that we do not ensure a NULL terminated string here as we > could fill the entire buffer with our strncpy call. Fix this by > subtracting one. > > Reported-by: Coverity (CID 131093) > Cc: Simon Glass > Signed-off-by: Tom Rini > --- > drivers/serial/serial-uclass.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Reviewed-by: Simon Glass > > diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c > index 842f78b..2ef82b0 100644 > --- a/drivers/serial/serial-uclass.c > +++ b/drivers/serial/serial-uclass.c > @@ -324,7 +324,7 @@ static int serial_post_probe(struct udevice *dev) > return 0; > memset(&sdev, '\0', sizeof(sdev)); > > - strncpy(sdev.name, dev->name, sizeof(sdev.name)); > + strncpy(sdev.name, dev->name, sizeof(sdev.name) - 1); There is also strlcpy() if you want it. > sdev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT; > sdev.priv = dev; > sdev.putc = serial_stub_putc; > -- > 1.7.9.5 >