[Qemu-devel] [PATCH 1/9] load_image_targphys() should enforce the max size

[David Gibson]

From: Benjamin Herrenschmidt <b...@kernel.crashing.org>

load_image_targphys() gets passed a max size for the file, but doesn't
enforce it at all. Add a check and return -1 (error) if the file is
too big, without loading it.  Fix the bracing style in the function
while we're at it.

Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org>
Signed-off-by: David Gibson <da...@gibson.dropbear.id.au>
---
 hw/loader.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/hw/loader.c b/hw/loader.c
index 446b628..415cdce 100644
--- a/hw/loader.c
+++ b/hw/loader.c
@@ -108,8 +108,12 @@ int load_image_targphys(const char *filename,
     int size;
 
     size = get_image_size(filename);
-    if (size > 0)
+    if (size > max_sz) {
+        return -1;
+    }
+    if (size > 0) {
         rom_add_file_fixed(filename, addr, -1);
+    }
     return size;
 }
 
-- 
1.7.7.3