On Tue, 2020-01-14 at 14:54 +0000, Colin King wrote: > > From: Colin Ian King <colin.king@xxxxxxxxxxxxx> > > Array utdm_info is declared as an array of MAX_HDLC_NUM (4) elements > however up to UCC_MAX_NUM (8) elements are potentially being written > to it. Currently we have an array out-of-bounds write error on the > last 4 elements. Fix this by making utdm_info UCC_MAX_NUM elements in > size. > > Addresses-Coverity: ("Out-of-bounds write") > Fixes: c19b6d246a35 ("drivers/net: support hdlc function for QE-UCC") > Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx> This should be sent to stable as well Cc: <stable@xxxxxxxxxxxxxxx> # 4.19.x+ > --- > drivers/net/wan/fsl_ucc_hdlc.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c > index 94e870f48e21..9edd94679283 100644 > --- a/drivers/net/wan/fsl_ucc_hdlc.c > +++ b/drivers/net/wan/fsl_ucc_hdlc.c > @@ -73,7 +73,7 @@ static struct ucc_tdm_info utdm_primary_info = { > }, > }; > > -static struct ucc_tdm_info utdm_info[MAX_HDLC_NUM]; > +static struct ucc_tdm_info utdm_info[UCC_MAX_NUM]; > > static int uhdlc_init(struct ucc_hdlc_private *priv) > { > -- > 2.24.0 >