commit | 8c8b04eac910e988e7552c8510bbbf515985e2ee | [log] [tgz] |
---|---|---|
author | Keith Mok <keithmok@google.com> | Thu Aug 31 00:31:35 2023 +0000 |
committer | Bharath <bharath@teamb58.org> | Wed Jan 17 23:37:27 2024 +0530 |
tree | 0b87ea5744cad2f49d4cb14495956970ef5c4843 | |
parent | a4d62d944e45ad5f061542fc8829ce6be1d95a82 [diff] |
Add seal if ashmem-dev is backed by memfd Need to seal the buffer size in align with ashmem if set to PROT_READ only to prevent untrusted remote process to shrink the buffer size and crash it. Bug: 294609150 Test: build Ignore-AOSP-First: Security (cherry picked from commit f83c5c8fecf89d9315945368aa20350c2f235cc0) (cherry picked from https://googleplex-android-review.googlesource.com/q/commit:61a2897733e15a12b7aa2dfd99957e83cbe59351) Merged-In: I9288cf30b41e84ad8d3247c204e20482912bff69 Change-Id: I9288cf30b41e84ad8d3247c204e20482912bff69