From: Andrei Borzenkov <arvidjaar@gmail.com>
Date: Sat, 9 Jan 2016 07:53:31 +0000 (+0300)
Subject: efiemu: fix unintended sign extension
X-Git-Tag: 2.02-beta3~107
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=97c41e121620796a77f04965a0c839f87eb50290;p=thirdparty%2Fgrub.git

efiemu: fix unintended sign extension

Found by: Coverity scan.
CID: 73883, 73637
---

diff --git a/grub-core/efiemu/loadcore.c b/grub-core/efiemu/loadcore.c
index 6968b3719..e68e7e4d1 100644
--- a/grub-core/efiemu/loadcore.c
+++ b/grub-core/efiemu/loadcore.c
@@ -343,7 +343,7 @@ SUFFIX (grub_efiemu_loadcore_init) (void *core, const char *filename,
     return grub_error (GRUB_ERR_BAD_MODULE, N_("this ELF file is not of the right type"));
 
   /* Make sure that every section is within the core.  */
-  if ((grub_size_t) core_size < e->e_shoff + e->e_shentsize * e->e_shnum)
+  if ((grub_size_t) core_size < e->e_shoff + (grub_uint32_t) e->e_shentsize * e->e_shnum)
     return grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
 		       filename);