From 8bb25d76038a7c4d4f08611446fac8be3cdef511 Mon Sep 17 00:00:00 2001 From: HeroponRikiBestest Date: Sat, 12 Jul 2025 12:47:28 -0400 Subject: [PATCH 1/2] Add extra validity checks for GCF --- SabreTools.Serialization/Deserializers/GCF.cs | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/SabreTools.Serialization/Deserializers/GCF.cs b/SabreTools.Serialization/Deserializers/GCF.cs index e706fa8f..b1b9920f 100644 --- a/SabreTools.Serialization/Deserializers/GCF.cs +++ b/SabreTools.Serialization/Deserializers/GCF.cs @@ -104,8 +104,15 @@ public class GCF : BaseBinaryDeserializer #region Directory Header + // Try to parse game cache directory header for validity + var directoryHeader = ParseDirectoryHeader(data); + if (directoryHeader.Dummy0 != 0x00000004) + return null; + if (directoryHeader.Dummy1 != 0x00008000) + return null; + // Set the game cache directory header - file.DirectoryHeader = ParseDirectoryHeader(data); + file.DirectoryHeader = directoryHeader; #endregion From 1cb0fbff3427f15d7bd234e7d99c79c156aa6ce3 Mon Sep 17 00:00:00 2001 From: HeroponRikiBestest <50224630+HeroponRikiBestest@users.noreply.github.com> Date: Sat, 12 Jul 2025 15:49:00 -0400 Subject: [PATCH 2/2] Remove "for validity" --- SabreTools.Serialization/Deserializers/GCF.cs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/SabreTools.Serialization/Deserializers/GCF.cs b/SabreTools.Serialization/Deserializers/GCF.cs index b1b9920f..4c43d320 100644 --- a/SabreTools.Serialization/Deserializers/GCF.cs +++ b/SabreTools.Serialization/Deserializers/GCF.cs @@ -104,7 +104,7 @@ public class GCF : BaseBinaryDeserializer #region Directory Header - // Try to parse game cache directory header for validity + // Try to parse game cache directory header var directoryHeader = ParseDirectoryHeader(data); if (directoryHeader.Dummy0 != 0x00000004) return null; @@ -669,4 +669,4 @@ public static Header ParseHeader(Stream data) return obj; } } -} \ No newline at end of file +}