commit 36882e98b4b33d48949cfcc3700f39f24489bebd
author Daniel Zheng <zhengdaniel@google.com> Tue Aug 15 13:32:48 2023 -0700
committer Daniel Zheng <zhengdaniel@google.com> Thu Aug 17 14:18:56 2023 -0700
tree fc1637a88c7aa6f306fadb4e05398cc091d8b6fb
parent 21aab6cb8384c3e7d53118c9684b450c7604b4b7

ZSTD read from wrong buf

Fix zstd to read from ignore_buf rather than buf since that is where we
are first copying the date

Test: zstd ota
Change-Id: I5032300e4628ecd7e49f1fa9f76dc9a828fb58e6

fs_mgr/libsnapshot/libsnapshot_cow/cow_decompress.cpp

diff --git a/fs_mgr/libsnapshot/libsnapshot_cow/cow_decompress.cpp b/fs_mgr/libsnapshot/libsnapshot_cow/cow_decompress.cpp
index 3692c1a..2aaf388 100644
--- a/fs_mgr/libsnapshot/libsnapshot_cow/cow_decompress.cpp
+++ b/fs_mgr/libsnapshot/libsnapshot_cow/cow_decompress.cpp
@@ -351,7 +351,7 @@
             return decompressed_size;
         }
         std::vector<unsigned char> ignore_buf(decompressed_size);
-        if (!Decompress(buffer, decompressed_size)) {
+        if (!Decompress(ignore_buf.data(), decompressed_size)) {
             return -1;
         }
         memcpy(buffer, ignore_buf.data() + ignore_bytes, buffer_size);