fix crash in wineserver affecting many apps and games (RHBZ#1829956)

wine-5.7-thread-context.patch

@@ -0,0 +1,62 @@
+From c3fac6e36caab168974dd04a60ae1bbb1a0fd919 Mon Sep 17 00:00:00 2001
+From: Jacek Caban <jacek@codeweavers.com>
+Date: Sat, 25 Apr 2020 21:13:33 +0200
+Subject: [PATCH] server: Fix setting context flags in get_thread_context.
+
+Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49011
+Signed-off-by: Jacek Caban <jacek@codeweavers.com>
+Signed-off-by: Alexandre Julliard <julliard@winehq.org>
+---
+ dlls/kernel32/tests/thread.c | 15 +++++++++++++++
+ server/thread.c              |  2 +-
+ 2 files changed, 16 insertions(+), 1 deletion(-)
+
+diff --git a/dlls/kernel32/tests/thread.c b/dlls/kernel32/tests/thread.c
+index b6a65a4207..e068797ff5 100644
+--- a/dlls/kernel32/tests/thread.c
++++ b/dlls/kernel32/tests/thread.c
+@@ -1175,6 +1175,20 @@ static void test_SetThreadContext(void)
+     CloseHandle( thread );
+ }
+ 
++static void test_GetThreadContext(void)
++{
++    CONTEXT ctx;
++    BOOL ret;
++
++    memset(&ctx, 0xcc, sizeof(ctx));
++    ctx.ContextFlags = CONTEXT_DEBUG_REGISTERS;
++    ret = GetThreadContext(GetCurrentThread(), &ctx);
++    ok(ret, "GetThreadContext failed: %u\n", GetLastError());
++    ok(ctx.ContextFlags == CONTEXT_DEBUG_REGISTERS, "ContextFlags = %x\n", ctx.ContextFlags);
++    ok(!ctx.Dr0, "Dr0 = %x\n", ctx.Dr0);
++    ok(!ctx.Dr1, "Dr0 = %x\n", ctx.Dr0);
++}
++
+ static void test_GetThreadSelectorEntry(void)
+ {
+     LDT_ENTRY entry;
+@@ -2452,6 +2466,7 @@
+ #ifdef __i386__
+    test_SetThreadContext();
+    test_GetThreadSelectorEntry();
++   test_GetThreadContext();
+    test_NtSetLdtEntries();
+ #endif
+    test_QueueUserWorkItem();
+diff --git a/server/thread.c b/server/thread.c
+index cfdf42c756..7c1c1108eb 100644
+--- a/server/thread.c
++++ b/server/thread.c
+@@ -1848,7 +1848,7 @@ DECL_HANDLER(get_thread_context)
+             {
+                 assert( reply->self );
+                 memset( context, 0, sizeof(context_t) );
+-                context->cpu = thread_context->regs.cpu;
++                context->cpu = thread->process->cpu;
+                 if (req->flags & system_flags)
+                 {
+                     get_thread_context( thread, context, req->flags & system_flags );
+-- 
+2.20.1
+

wine.spec

@@ -42,7 +42,7 @@
 
 Name:           wine
 Version:        5.7
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        A compatibility layer for windows applications
 
 License:        LGPLv2+
@@ -72,6 +72,8 @@ Source109:      wine-oleview.desktop
 Source150:      wine.appdata.xml
 
 # wine bugs
+# https://bugs.winehq.org/show_bug.cgi?id=49011
+Patch100:       wine-5.7-thread-context.patch
 
 # desktop dir
 Source200:      wine.menu
@@ -690,6 +692,7 @@ patches/patchinstall.sh DESTDIR="`pwd`" --all
 sed -i -e 's!^loader server: libs/port libs/wine tools.*!& include!' Makefile.in
 
 %endif # 0%{?wine_staging}
+%patch100 -p1 -b.thread-context
 
 %build
 
@@ -2301,6 +2304,9 @@ fi
 %endif
 
 %changelog
+* Sat May 02 2020 Michael Cronenworth <mike@cchtml.com> 5.7-2
+- fix crash in wineserver affecting many apps and games (RHBZ#1829956)
+
 * Sun Apr 26 2020 Michael Cronenworth <mike@cchtml.com> 5.7-1
 - version update