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portable_storage: check object limit where appropriate 

also fix pedantic off by one in check
This commit is contained in:
moneromooo 2020-12-31 16:27:27 +00:00 committed by moneromooo-monero
parent 36dfd41e01
commit 531069859f
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GPG Key ID: 686F07454D6CEFC3
1 changed files with 6 additions and 1 deletions
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7
contrib/epee/include/storages/portable_storage_from_bin.h
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@ -163,6 +163,11 @@ namespace epee
array_entry_t<type_name> sa;
size_t size = read_varint();
CHECK_AND_ASSERT_THROW_MES(size <= m_count / ps_min_bytes<type_name>::strict, "Size sanity check failed");
if (std::is_same<type_name, section>())
{
CHECK_AND_ASSERT_THROW_MES(size <= EPEE_PORTABLE_STORAGE_OBJECT_LIMIT_INTERNAL - m_objects, "Too many objects");
m_objects += size;
}
sa.reserve(size);
//TODO: add some optimization here later
@ -288,7 +293,7 @@ namespace epee
RECURSION_LIMITATION();
sec.m_entries.clear();
size_t count = read_varint();
CHECK_AND_ASSERT_THROW_MES(count < EPEE_PORTABLE_STORAGE_OBJECT_LIMIT_INTERNAL - m_objects, "Too many objects");
CHECK_AND_ASSERT_THROW_MES(count <= EPEE_PORTABLE_STORAGE_OBJECT_LIMIT_INTERNAL - m_objects, "Too many objects");
m_objects += count;
while(count--)
{