Crash caused by going out of "eps_out" array range.
Iteration on "eps_out" changed to less than "num_of_eps".

Signed-off-by: Artur Petrosyan <art...@synopsys.com>
---
 drivers/usb/dwc2/gadget.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 6c32bf26e48e..010cfbca962a 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -3427,7 +3427,7 @@ static void dwc2_gadget_handle_incomplete_isoc_in(struct 
dwc2_hsotg *hsotg)
 
        daintmsk = dwc2_readl(hsotg->regs + DAINTMSK);
 
-       for (idx = 1; idx <= hsotg->num_of_eps; idx++) {
+       for (idx = 1; idx < hsotg->num_of_eps; idx++) {
                hs_ep = hsotg->eps_in[idx];
                /* Proceed only unmasked ISOC EPs */
                if (!hs_ep->isochronous || (BIT(idx) & ~daintmsk))
@@ -3473,7 +3473,7 @@ static void dwc2_gadget_handle_incomplete_isoc_out(struct 
dwc2_hsotg *hsotg)
        daintmsk = dwc2_readl(hsotg->regs + DAINTMSK);
        daintmsk >>= DAINT_OUTEP_SHIFT;
 
-       for (idx = 1; idx <= hsotg->num_of_eps; idx++) {
+       for (idx = 1; idx < hsotg->num_of_eps; idx++) {
                hs_ep = hsotg->eps_out[idx];
                /* Proceed only unmasked ISOC EPs */
                if (!hs_ep->isochronous || (BIT(idx) & ~daintmsk))
@@ -3647,7 +3647,7 @@ static irqreturn_t dwc2_hsotg_irq(int irq, void *pw)
                dwc2_writel(gintmsk, hsotg->regs + GINTMSK);
 
                dev_dbg(hsotg->dev, "GOUTNakEff triggered\n");
-               for (idx = 1; idx <= hsotg->num_of_eps; idx++) {
+               for (idx = 1; idx < hsotg->num_of_eps; idx++) {
                        hs_ep = hsotg->eps_out[idx];
                        /* Proceed only unmasked ISOC EPs */
                        if (!hs_ep->isochronous || (BIT(idx) & ~daintmsk))
-- 
2.11.0

--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to