commit 9191787d0e73712608eff22fca9aea9480d4691e
author Edwin Wong <edwinwong@google.com> Tue Feb 02 22:28:41 2021 -0800
committer Edwin Wong <edwinwong@google.com> Thu Feb 25 17:55:20 2021 +0000
tree 08a1416731fcab5a42482d958e63768db2dd6a73
parent e42109b559280b4a7d3f4551ed5298edc73eb7db

Fix potential decrypt destPtr overflow.

There is a potential integer overflow to bypass the
destination base size check in decrypt. The destPtr
can then point to the outside of the destination buffer.

Test: sts-tradefed
  sts-tradefed run sts-engbuild-no-spl-lock -m StsHostTestCases --test android.security.sts.Bug_176444622#testPocBug_176444622

Test: push to device with target_hwasan-userdebug build
  adb shell /data/local/tmp/Bug-17644462264

Bug: 176444622
Bug: 176496353
Change-Id: I63043d10796f82ad805038ba1fad5bd7d5c89961
Merged-In: I63043d10796f82ad805038ba1fad5bd7d5c89961