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ntdll: Make sure to not unmap anything from reserved areas 

when using NtFreeVirtualMemory with the MEM_SYSTEM flag.
This commit is contained in:
Alexandre Julliard 2006-07-13 20:47:07 +02:00
parent bb63a325d7
commit c79cf02fae
3 changed files with 5 additions and 4 deletions
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3
dlls/ntdll/virtual.c
View File

@ -1386,7 +1386,8 @@ NTSTATUS WINAPI NtFreeVirtualMemory( HANDLE process, PVOID *addr_ptr, SIZE_T *si
{
/* return the values that the caller should use to unmap the area */
*addr_ptr = view->base;
*size_ptr = view->size;
if (!wine_mmap_is_in_reserved_area( view->base, view->size )) *size_ptr = view->size;
else *size_ptr = 0; /* make sure we don't munmap anything from a reserved area */
view->flags |= VFLAG_SYSTEM;
delete_view( view );
}

4
loader/kthread.c
View File

@ -190,8 +190,8 @@ static void cleanup_thread( void *ptr )
/* copy the info structure since it is on the stack we will free */
struct wine_pthread_thread_info info = *(struct wine_pthread_thread_info *)ptr;
wine_ldt_free_fs( info.teb_sel );
munmap( info.stack_base, info.stack_size );
munmap( info.teb_base, info.teb_size );
if (info.stack_size) munmap( info.stack_base, info.stack_size );
if (info.teb_size) munmap( info.teb_base, info.teb_size );
#ifdef HAVE__LWP_CREATE
_lwp_exit();
#endif

2
loader/pthread.c
View File

@ -159,7 +159,7 @@ static void *get_current_teb(void)
static void DECLSPEC_NORETURN exit_thread( struct wine_pthread_thread_info *info )
{
wine_ldt_free_fs( info->teb_sel );
munmap( info->teb_base, info->teb_size );
if (info->teb_size) munmap( info->teb_base, info->teb_size );
pthread_exit( (void *)info->exit_status );
}