Commit f8fe610d authored Jul 04, 2017 by Arumuga Durai A Committed by Sriharsha Allenki Jul 14, 2017

USB: phy: msm: Fix out of bound access



When invalid value passed from user-space to modify the
POWER_SUPPLY_HEALTH property for eg)
echo 500 > /sys/devices/soc/78db000.usb/power_supply/usb/health
out of bound access happens while power_supply uevent updating
all power_supply properties due to change of power_supply
property. Fix this by adding proper check before modifying
POWER_SUPPLY_HEALTH property.

CRs-Fixed: 2068932
Change-Id: Ib6679d7045429146a56075caccd3dd8c0cb12dff
Signed-off-by: Arumuga Durai A <cadurai@codeaurora.org>

parent 35eaac3d

drivers/usb/phy/phy-msm-usb.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -3623,6 +3623,9 @@ static int otg_power_set_property_usb(struct power_supply *psy,
		motg->chg_type, psy->type);
		break;
		case POWER_SUPPLY_PROP_HEALTH:
		if (val->intval > POWER_SUPPLY_HEALTH_HOT)
		motg->usbin_health = 0;
		else
		motg->usbin_health = val->intval;
		break;
		default: