commit 9e6005ada46831b5a4cf9285bed72b1cbd4964b3
author Treehugger Robot <treehugger-gerrit@google.com> Fri Dec 02 19:25:32 2022 +0000
committer Gerrit Code Review <noreply-gerritcodereview@google.com> Fri Dec 02 19:25:32 2022 +0000
tree 6c20fb079076c3889b07ffe43627cf8a6b28cda0
parent eff9050ccf0bb01615baa406cf4e02b34efd86a5
parent bc1a5b1393b08be6871835a25cb23f6528965650

Merge "Fix nullptr access when cow reader open fails"

fs_mgr/libsnapshot/snapshot_writer.cpp

diff --git a/fs_mgr/libsnapshot/snapshot_writer.cpp b/fs_mgr/libsnapshot/snapshot_writer.cpp
index 6aad3d1..82a7fd7 100644
--- a/fs_mgr/libsnapshot/snapshot_writer.cpp
+++ b/fs_mgr/libsnapshot/snapshot_writer.cpp
@@ -93,6 +93,9 @@
 
 std::unique_ptr<FileDescriptor> CompressedSnapshotWriter::OpenReader() {
     auto cow = OpenCowReader();
+    if (cow == nullptr) {
+        return nullptr;
+    }
 
     auto reader = std::make_unique<CompressedSnapshotReader>();
     if (!reader->SetCow(std::move(cow))) {