mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-12-20 21:34:24 -05:00
69 lines
2.9 KiB
Diff
69 lines
2.9 KiB
Diff
|
From 63a4f959f0062a618ee0f513f3f05964b9f054d0 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Ramkumar Radhakrishnan <ramkumar@codeaurora.org>
|
||
|
|
Date: Thu, 20 Sep 2018 13:17:36 -0700
|
||
|
|
Subject: [PATCH] Gralloc: Validate buffer parameters during importBuffer call
|
||
|
|
|
||
|
|
Validate buffer parameters like numInts, numFds, version etc of buffer
|
||
|
|
handle while importing the buffer
|
||
|
|
|
||
|
|
Change-Id: Ia1cb1cf05d845b5ef5b2feb476c2c924fa3bbf17
|
||
|
|
CRs-Fixed: 2337383
|
||
|
|
---
|
||
|
|
gralloc/gr_buf_mgr.cpp | 6 +++++-
|
||
|
|
gralloc/gr_priv_handle.h | 14 ++++++++------
|
||
|
|
2 files changed, 13 insertions(+), 7 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/gralloc/gr_buf_mgr.cpp b/gralloc/gr_buf_mgr.cpp
|
||
|
|
index af0018a93..f3c96c999 100644
|
||
|
|
--- a/gralloc/gr_buf_mgr.cpp
|
||
|
|
+++ b/gralloc/gr_buf_mgr.cpp
|
||
|
|
@@ -1,5 +1,5 @@
|
||
|
|
/*
|
||
|
|
- * Copyright (c) 2011-2018 The Linux Foundation. All rights reserved.
|
||
|
|
+ * Copyright (c) 2011-2019 The Linux Foundation. All rights reserved.
|
||
|
|
* Not a Contribution
|
||
|
|
*
|
||
|
|
* Copyright (C) 2010 The Android Open Source Project
|
||
|
|
@@ -227,6 +227,10 @@ void BufferManager::RegisterHandleLocked(const private_handle_t *hnd,
|
||
|
|
}
|
||
|
|
|
||
|
|
gralloc1_error_t BufferManager::ImportHandleLocked(private_handle_t *hnd) {
|
||
|
|
+ if (private_handle_t::validate(hnd) != 0) {
|
||
|
|
+ ALOGE("ImportHandleLocked: Invalid handle: %p", hnd);
|
||
|
|
+ return GRALLOC1_ERROR_BAD_HANDLE;
|
||
|
|
+ }
|
||
|
|
ALOGD_IF(DEBUG, "Importing handle:%p id: %" PRIu64, hnd, hnd->id);
|
||
|
|
int ion_handle = allocator_->ImportBuffer(hnd->fd);
|
||
|
|
if (ion_handle < 0) {
|
||
|
|
diff --git a/gralloc/gr_priv_handle.h b/gralloc/gr_priv_handle.h
|
||
|
|
index e4b521c95..2acb16cc4 100644
|
||
|
|
--- a/gralloc/gr_priv_handle.h
|
||
|
|
+++ b/gralloc/gr_priv_handle.h
|
||
|
|
@@ -1,5 +1,5 @@
|
||
|
|
/*
|
||
|
|
- * Copyright (c) 2011-2018, The Linux Foundation. All rights reserved.
|
||
|
|
+ * Copyright (c) 2011-2019, The Linux Foundation. All rights reserved.
|
||
|
|
* Not a Contribution
|
||
|
|
*
|
||
|
|
* Copyright (C) 2008 The Android Open Source Project
|
||
|
|
@@ -154,12 +154,14 @@ struct private_handle_t {
|
||
|
|
static int validate(const native_handle *h) {
|
||
|
|
const private_handle_t *hnd = (const private_handle_t *)h;
|
||
|
|
if (!h || h->version != sizeof(native_handle) || h->numInts != NumInts() ||
|
||
|
|
- h->numFds != kNumFds || hnd->magic != kMagic) {
|
||
|
|
- ALOGE(
|
||
|
|
- "Invalid gralloc handle (at %p): ver(%d/%zu) ints(%d/%d) fds(%d/%d) "
|
||
|
|
- "magic(%c%c%c%c/%c%c%c%c)",
|
||
|
|
+ h->numFds != kNumFds) {
|
||
|
|
+ ALOGE("Invalid gralloc handle (at %p): ver(%d/%zu) ints(%d/%d) fds(%d/%d) ",
|
||
|
|
h, h ? h->version : -1, sizeof(native_handle), h ? h->numInts : -1, NumInts(),
|
||
|
|
- h ? h->numFds : -1, kNumFds,
|
||
|
|
+ h ? h->numFds : -1, kNumFds);
|
||
|
|
+ return -EINVAL;
|
||
|
|
+ }
|
||
|
|
+ if (hnd->magic != kMagic) {
|
||
|
|
+ ALOGE("magic(%c%c%c%c/%c%c%c%c)",
|
||
|
|
hnd ? (((hnd->magic >> 24) & 0xFF) ? ((hnd->magic >> 24) & 0xFF) : '-') : '?',
|
||
|
|
hnd ? (((hnd->magic >> 16) & 0xFF) ? ((hnd->magic >> 16) & 0xFF) : '-') : '?',
|
||
|
|
hnd ? (((hnd->magic >> 8) & 0xFF) ? ((hnd->magic >> 8) & 0xFF) : '-') : '?',
|