Fix potential decrypt src pointer overflow.
There is a potential integer overflow to bypass the
source base size check in decrypt. The source pointer
can then point to the outside of the source buffer,
which could potentially leak arbitrary memory content
to destination pointer.
Test: sts-tradefed
sts-tradefed run sts-engbuild-no-spl-lock -m StsHostTestCases --test android.security.sts.Bug_176496160#testPocBug_176496160
Test: push to device with target_hwasan-userdebug build
adb shell /data/local/tmp/Bug-17649616064
Bug: 176496160
Bug: 176444786
Change-Id: Iea3dcd44d0f4f61de3288ed1e26d8bd5e39115d2
(cherry picked from commit 9bae1251cfbc6fde87896bf1264dd0bbded7c5e5)
1 file changed