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airborne pushed a commit to branch branch-2.1
in repository https://gitbox.apache.org/repos/asf/doris.git


The following commit(s) were added to refs/heads/branch-2.1 by this push:
     new ccff47e813d [Fix](inverted index) fix use after free when duplicate 
key in index dir when index file writer open index #42207 (#42301)
ccff47e813d is described below

commit ccff47e813dcceba1195fc9a8b3f7effe356a368
Author: airborne12 <airborn...@gmail.com>
AuthorDate: Wed Oct 23 16:45:25 2024 +0800

    [Fix](inverted index) fix use after free when duplicate key in index dir 
when index file writer open index #42207 (#42301)
    
    cherry pick from #42207
---
 .../rowset/segment_v2/inverted_index_file_writer.cpp    | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/be/src/olap/rowset/segment_v2/inverted_index_file_writer.cpp 
b/be/src/olap/rowset/segment_v2/inverted_index_file_writer.cpp
index 675c55bc77e..7b66ee70cbe 100644
--- a/be/src/olap/rowset/segment_v2/inverted_index_file_writer.cpp
+++ b/be/src/olap/rowset/segment_v2/inverted_index_file_writer.cpp
@@ -59,7 +59,8 @@ Result<DorisFSDirectory*> InvertedIndexFileWriter::open(const 
TabletIndex* index
     }
     if (exists) {
         LOG(ERROR) << "try to init a directory:" << lfs_index_path << " 
already exists";
-        return ResultError(Status::InternalError("init_fulltext_index 
directory already exists"));
+        return ResultError(
+                Status::InternalError("InvertedIndexFileWriter::open directory 
already exists"));
     }
 
     bool can_use_ram_dir = true;
@@ -67,8 +68,18 @@ Result<DorisFSDirectory*> 
InvertedIndexFileWriter::open(const TabletIndex* index
     auto* dir = DorisFSDirectoryFactory::getDirectory(_lfs, 
lfs_index_path.c_str(),
                                                       
use_compound_file_writer, can_use_ram_dir,
                                                       nullptr, _fs, 
index_path.c_str());
-    _indices_dirs.emplace(std::make_pair(index_id, index_suffix),
-                          std::unique_ptr<DorisFSDirectory>(dir));
+    auto key = std::make_pair(index_id, index_suffix);
+    auto [it, inserted] = _indices_dirs.emplace(key, 
std::unique_ptr<DorisFSDirectory>(dir));
+    if (!inserted) {
+        LOG(ERROR) << "InvertedIndexFileWriter::open attempted to insert a 
duplicate key: ("
+                   << key.first << ", " << key.second << ")";
+        LOG(ERROR) << "Directories already in map: ";
+        for (const auto& entry : _indices_dirs) {
+            LOG(ERROR) << "Key: (" << entry.first.first << ", " << 
entry.first.second << ")";
+        }
+        return ResultError(Status::InternalError(
+                "InvertedIndexFileWriter::open attempted to insert a duplicate 
dir"));
+    }
     return dir;
 }
 


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