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Fix usage of mdb_cursor_put with invalid memory references (#210)

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Lee *!* Clagett
2025-12-01 08:59:56 -05:00
committed by Lee *!* Clagett
parent 8cf0976557
commit 24bdbb43d4
1 changed files with 15 additions and 0 deletions
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15
src/db/storage.cpp
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@@ -397,6 +397,7 @@ namespace db
MDB_val key{};
MDB_val value{};
std::string key_bytes;
int err = mdb_cursor_get(old_cur.get(), &key, &value, MDB_FIRST);
for (;;)
{
@@ -415,6 +416,9 @@ namespace db
if (sizeof(X) != value.mv_size)
return {lmdb::error(MDB_CORRUPTED)};
key_bytes.assign(reinterpret_cast<const char*>(key.mv_data), key.mv_size);
key.mv_data = reinterpret_cast<void*>(key_bytes.data());
Y transition{};
std::memcpy(std::addressof(transition), value.mv_data, value.mv_size);
@@ -455,6 +459,7 @@ namespace db
block_id(points.begin()->first), points.begin()->second
};
key = lmdb::to_val(blocks_version);
MDB_val value = lmdb::to_val(checkpoint);
err = mdb_cursor_put(cur.get(), &key, &value, MDB_NODUPDATA);
if (err)
@@ -466,6 +471,7 @@ namespace db
block_id(points.rbegin()->first), points.rbegin()->second
};
key = lmdb::to_val(blocks_version);
value = lmdb::to_val(checkpoint);
err = mdb_cursor_put(cur.get(), &key, &value, MDB_NODUPDATA);
if (err)
@@ -501,6 +507,7 @@ namespace db
// new database
block_pow checkpoint{block_id(0), 0u, block_difficulty{0u, 1u}};
MDB_val value = lmdb::to_val(checkpoint);
key = lmdb::to_val(pows_version);
err = mdb_cursor_put(cur.get(), &key, &value, MDB_NODUPDATA);
if (err)
MONERO_THROW(lmdb::error(err), "Unable to add hash to local blockchain");
@@ -1569,6 +1576,7 @@ namespace db
user->scan_height = block_id(new_height);
user->start_height = std::min(user->scan_height, user->start_height);
key = lmdb::to_val(lookup->status);
value = lmdb::to_val(*user);
MLWS_LMDB_CHECK(mdb_cursor_put(accounts_cur.get(), &key, &value, MDB_CURRENT));
@@ -1928,6 +1936,7 @@ namespace db
return user.error();
user->access = *current_time;
key = lmdb::to_val(lookup->status);
value = lmdb::to_val(*user);
MLWS_LMDB_CHECK(mdb_cursor_put(accounts_cur.get(), &key, &value, MDB_CURRENT));
return success();
@@ -1971,6 +1980,7 @@ namespace db
{
by_address->lookup.status = status;
key = lmdb::to_val(by_address_version);
value = lmdb::to_val(*by_address);
MLWS_LMDB_CHECK(mdb_cursor_put(accounts_ba_cur.get(), &key, &value, MDB_CURRENT));
@@ -1992,6 +2002,7 @@ namespace db
value = lmdb::to_val(user->id);
MLWS_LMDB_CHECK(mdb_cursor_get(accounts_bh_cur.get(), &key, &value, MDB_GET_BOTH));
key = lmdb::to_val(user->scan_height);
value = lmdb::to_val(by_address->lookup);
MLWS_LMDB_CHECK(mdb_cursor_put(accounts_bh_cur.get(), &key, &value, MDB_CURRENT));
}
@@ -2136,6 +2147,7 @@ namespace db
user->scan_height = std::min(height, user->scan_height);
user->start_height = std::min(height, user->start_height);
key = lmdb::to_val(lookup->status);
value = lmdb::to_val(*user);
MLWS_LMDB_CHECK(
mdb_cursor_put(&accounts_cur, &key, &value, MDB_CURRENT)
@@ -2873,6 +2885,7 @@ namespace db
const block_id existing_height = existing->scan_height;
existing->scan_height = block_id(last_update);
key = lmdb::to_val(status_key);
value = lmdb::to_val(*existing);
MLWS_LMDB_CHECK(mdb_cursor_put(accounts_cur.get(), &key, &value, MDB_CURRENT));
@@ -3049,6 +3062,7 @@ namespace db
new_value.index = address_index{major_entry.first, minor_index(minor)};
new_value.subaddress = new_value.index.get_spend_public(address, view_key);
key = lmdb::to_val(id);
value = lmdb::to_val(new_value);
const int err = mdb_cursor_put(indexes_cur.get(), &key, &value, MDB_NODUPDATA);
@@ -3061,6 +3075,7 @@ namespace db
subaddress_ranges.make_value(major_entry.first, new_dict);
if (!value_bytes)
return value_bytes.error();
key = lmdb::to_val(id);
value = MDB_val{value_bytes->size(), const_cast<void*>(static_cast<const void*>(value_bytes->data()))};
MLWS_LMDB_CHECK(mdb_cursor_put(ranges_cur.get(), &key, &value, MDB_NODUPDATA));
}