Alexandre Julliard : ntdll: Limit header_size to the file size.
Alexandre Julliard
julliard at wine.codeweavers.com
Mon Mar 27 14:50:29 CST 2006
Module: wine
Branch: refs/heads/master
Commit: 18d7980fd8557199d2162ab14c963b9b51f3cb5b
URL: http://source.winehq.org/git/?p=wine.git;a=commit;h=18d7980fd8557199d2162ab14c963b9b51f3cb5b
Author: Alexandre Julliard <julliard at winehq.org>
Date: Mon Mar 27 21:29:46 2006 +0200
ntdll: Limit header_size to the file size.
---
dlls/ntdll/virtual.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/dlls/ntdll/virtual.c b/dlls/ntdll/virtual.c
index d17c58d..17f9081 100644
--- a/dlls/ntdll/virtual.c
+++ b/dlls/ntdll/virtual.c
@@ -868,7 +868,8 @@ static NTSTATUS map_image( HANDLE hmappi
goto error;
}
status = STATUS_INVALID_IMAGE_FORMAT; /* generic error */
- if (header_size > st.st_size) goto error;
+ if (!st.st_size) goto error;
+ header_size = min( header_size, st.st_size );
if (map_file_into_view( view, fd, 0, header_size, 0, VPROT_COMMITTED | VPROT_READ,
removable ) != STATUS_SUCCESS) goto error;
dos = (IMAGE_DOS_HEADER *)ptr;
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