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Disregard alleged binder entities beyond parcel bounds

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When appending one parcel's contents to another, ignore binder
objects within the source Parcel that appear to lie beyond the
formal bounds of that Parcel's data buffer.

Bug 17312693

Change-Id: If592a260f3fcd9a56fc160e7feb2c8b44c73f514
(cherry picked from commit 27182be9f2)
This commit is contained in:
Christopher Tate 2015-05-27 17:53:02 -07:00 committed by Christopher Hocutt
parent 2c4f5fdeca
commit 2f340be345
1 changed files with 1 additions and 1 deletions
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2
libs/binder/Parcel.cpp
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@ -411,7 +411,7 @@ status_t Parcel::appendFrom(const Parcel *parcel, size_t offset, size_t len)
// Count objects in range
for (int i = 0; i < (int) size; i++) {
size_t off = objects[i];
if ((off >= offset) && (off < offset + len)) {
if ((off >= offset) && (off + sizeof(flat_binder_object) <= offset + len)) {
if (firstIndex == -1) {
firstIndex = i;
}