fix: IndexOfPattern alignment for multi-byte encodings

Stride the scan by pattern.Length (1 for ASCII/UTF-8, 2 for UTF-16, 4 for UTF-32) to avoid matching a misaligned null-terminator pattern mid-character.
2026-07-21 19:34:01 +02:00
parent 6aaee0adce
commit 68255f907c
1 changed files with 2 additions and 1 deletions
@@ -273,7 +273,8 @@ public abstract class MemoryBase : IDisposable
    private static int IndexOfPattern(byte[] data, byte[] pattern)
    {
        int lastStart = data.Length - pattern.Length;
-        for (int i = 0; i <= lastStart; i++)
+        int stride = Math.Max(1, pattern.Length);
+        for (int i = 0; i <= lastStart; i += stride)
        {
            bool match = true;
            for (int j = 0; j < pattern.Length; j++)