2021-10-16 14:05:45 -04:00
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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2021-07-09 21:04:08 -04:00
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From: Courtney Goeltzenleuchter <courtneygo@google.com>
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Date: Thu, 24 May 2018 08:23:55 -0600
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Subject: [PATCH] Fix Buffer Overflow in Vendor Service display.qservice
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Bug: 63145942
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Test: adb shell vndservice call display.qservice 36 s16 sdlkfjsadlfkjasdf
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Change-Id: I3fdf5ccd2bf4ed0fa980883fefdb57eb5fbfeee7
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(cherry picked from commit 4050091844ccd427587024e5fd916113a5cc0029)
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---
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sdm/libs/hwc2/hwc_session.cpp | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/sdm/libs/hwc2/hwc_session.cpp b/sdm/libs/hwc2/hwc_session.cpp
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index 5f825c19b..e4b687d6b 100644
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--- a/sdm/libs/hwc2/hwc_session.cpp
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+++ b/sdm/libs/hwc2/hwc_session.cpp
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@@ -1226,6 +1226,11 @@ android::status_t HWCSession::SetColorModeOverride(const android::Parcel *input_
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auto display = static_cast<hwc2_display_t >(input_parcel->readInt32());
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auto mode = static_cast<android_color_mode_t>(input_parcel->readInt32());
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auto device = static_cast<hwc2_device_t *>(this);
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+
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+ if (display > HWC_DISPLAY_VIRTUAL) {
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+ return -EINVAL;
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+ }
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+
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auto err = CallDisplayFunction(device, display, &HWCDisplay::SetColorMode, mode);
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if (err != HWC2_ERROR_NONE)
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return -EINVAL;
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