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grub-module-verifier: fix unintended sign extension
author
Andrei Borzenkov
<arvidjaar@gmail.com>
Fri, 8 Jan 2016 08:05:16 +0000
(11:05 +0300)
committer
Andrei Borzenkov
<arvidjaar@gmail.com>
Sat, 9 Jan 2016 08:36:42 +0000
(11:36 +0300)
Found by: Coverity scan.
CID: 156533, 156532
util/grub-module-verifierXX.c
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diff --git
a/util/grub-module-verifierXX.c
b/util/grub-module-verifierXX.c
index
25988eb
..
f612d51
100644
(file)
--- a/
util/grub-module-verifierXX.c
+++ b/
util/grub-module-verifierXX.c
@@
-337,7
+337,7
@@
SUFFIX(grub_module_verify) (void *module_img, size_t size, const struct grub_mod
/* Make sure that every section is within the core. */
if (size < grub_target_to_host (e->e_shoff)
- + grub_target_to_host16 (e->e_shentsize) * grub_target_to_host16(e->e_shnum))
+ +
(grub_uint32_t)
grub_target_to_host16 (e->e_shentsize) * grub_target_to_host16(e->e_shnum))
{
grub_util_error ("ELF sections outside core");
}