build: version 2026 Beta3

This eliminates the deadlock described in PR #677 while at the same time
ensuring that CcDeferWrite is called after the file's cache map has been
initialized.

Changelog.md

@@ -1,6 +1,25 @@
 # Changelog
 
 
+## v2.2B3 (2026 Beta3)
+
+- [FIX] Fixes vulnerability CVE-2026-3006 discovered by Tay Kiat Loong (GitHub: @Owl4444).
+
+- [FIX] Fixes vulnerability CVE-2026-7162 discovered by Tay Kiat Loong (GitHub: @Owl4444) and uhg (GitHub: @UltimateHG).
+
+- [FIX] Fixes deadlock during cached writes under memory pressure. See PR #677 for discussion.
+
+- [FIX] Fixes deadlock in the file system notification mechanism with concurrent renames. See fix PR #669 by @yeonsh and test PR #672 by @Maksim-Isakau.
+
+- [FIX] The WinFsp Network Provider provides improved shell support for network file systems not managed by the Launcher. See commit f021496.
+
+- [FUSE] Add FUSE option `FlushOnCleanup`. See PR #614 by @chenjie4255.
+
+- [FUSE] FUSE now respects the `direct_io` flag. See PR #646 by @chenjie4255.
+
+- [FUSE] Add FUSE option `AddWriteEaAccess`. See PR #648 by @chenjie4255.
+
+
 ## v2.2B2 (2026 Beta2)
 
 - [FIX] Fixes vulnerability CVE-2026-3006 discovered by Tay Kiat Loong (GitHub: @Owl4444).

build/VStudio/build.version.props

@@ -20,7 +20,7 @@
 
         <MyCanonicalVersion>2.2</MyCanonicalVersion>
 
-        <MyProductVersion>2026 Beta2</MyProductVersion>
+        <MyProductVersion>2026 Beta3</MyProductVersion>
         <MyProductStage>Beta</MyProductStage>
 
         <MyCrossCert>CrossCert.cer</MyCrossCert>

src/sys/write.c

@@ -247,8 +247,13 @@ static NTSTATUS FspFsvolWriteCached(
     FILE_END_OF_FILE_INFORMATION EndOfFileInformation;
     UINT64 WriteEndOffset;
     BOOLEAN ExtendingFile;
+    BOOLEAN DeferWrite;
     BOOLEAN Success;
 
+    /* should we defer the write? */
+    Success = DEBUGTEST(90) && CcCanIWrite(FileObject, WriteLength, CanWait, Retrying);
+    DeferWrite = !Success;
+
     /* try to acquire the FileNode Main exclusive */
     Success = DEBUGTEST(90) &&
         FspFileNodeTryAcquireExclusiveF(FileNode, FspFileNodeAcquireMain, CanWait);
@@ -306,8 +311,7 @@ static NTSTATUS FspFsvolWriteCached(
     }
 
     /* should we defer the write? */
-    Success = DEBUGTEST(90) && CcCanIWrite(FileObject, WriteLength, CanWait, Retrying);
+    if (DeferWrite)
-    if (!Success)
     {
         Result = FspWqCreateIrpWorkItem(Irp, FspFsvolWriteCached, 0);
         if (NT_SUCCESS(Result))