You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
34 lines
962 B
34 lines
962 B
From 604b607d8ac91eb8afc0b6e3d917d5c073096103 Mon Sep 17 00:00:00 2001
|
|
From: Phillip Lougher <phillip@squashfs.org.uk>
|
|
Date: Wed, 11 Jun 2014 04:51:37 +0100
|
|
Subject: mksquashfs: ensure value does not overflow a signed int in -mem
|
|
option
|
|
|
|
Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
|
|
|
|
diff --git a/squashfs-tools/mksquashfs.c b/squashfs-tools/mksquashfs.c
|
|
index 5370ecf..9676dc8 100644
|
|
--- a/squashfs-tools/mksquashfs.c
|
|
+++ b/squashfs-tools/mksquashfs.c
|
|
@@ -5193,7 +5193,16 @@ print_compressor_options:
|
|
argv[0]);
|
|
exit(1);
|
|
}
|
|
- /* convert from bytes to Mbytes */
|
|
+
|
|
+ /*
|
|
+ * convert from bytes to Mbytes, ensuring the value
|
|
+ * does not overflow a signed int
|
|
+ */
|
|
+ if(number >= (1LL << 51)) {
|
|
+ ERROR("%s: -mem invalid mem size\n", argv[0]);
|
|
+ exit(1);
|
|
+ }
|
|
+
|
|
total_mem = number / 1048576;
|
|
if(total_mem < (SQUASHFS_LOWMEM / SQUASHFS_TAKE)) {
|
|
ERROR("%s: -mem should be %d Mbytes or "
|
|
--
|
|
cgit v0.10.1
|
|
|