From e994eea6daa08f98a4132630579b958b6e5250f5 Mon Sep 17 00:00:00 2001
From: Evan Stade <evanstade@microsoft.com>
Date: Thu, 19 Mar 2026 23:39:41 +0000
Subject: [PATCH] .

---
 db/memtable.cc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/db/memtable.cc b/db/memtable.cc
index 4f09340e0e..33a99288c8 100644
--- a/db/memtable.cc
+++ b/db/memtable.cc
@@ -12,7 +12,7 @@
 namespace leveldb {
 
 static Slice GetLengthPrefixedSlice(const char* data) {
-  uint32_t len;
+  uint32_t len = 0u;
   const char* p = data;
   p = GetVarint32Ptr(p, p + 5, &len);  // +5: we assume "p" is not corrupted
   return Slice(p, len);
@@ -114,8 +114,11 @@ bool MemTable::Get(const LookupKey& key, std::string* value, Status* s) {
     // sequence number since the Seek() call above should have skipped
     // all entries with overly large sequence numbers.
     const char* entry = iter.key();
-    uint32_t key_length;
+    uint32_t key_length = 0u;
     const char* key_ptr = GetVarint32Ptr(entry, entry + 5, &key_length);
+    if (!key_ptr) {
+      return false;
+    }
     if (comparator_.comparator.user_comparator()->Compare(
             Slice(key_ptr, key_length - 8), key.user_key()) == 0) {
       // Correct user key