DivestOS/Patches/Linux_CVEs/CVE-2016-10208/ANY/5.patch
2017-10-29 22:14:37 -04:00

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Diff

From 5063cbf9d49280ac925f86968ff60401b3071603 Mon Sep 17 00:00:00 2001
From: syphyr <syphyr@gmail.com>
Date: Sun, 11 Jun 2017 00:40:19 +0200
Subject: [PATCH] ext4: fix condition of validate s_first_meta_bg
Fixes: ext4: validate s_first_meta_bg at mount time
Change-Id: Iea0fb0df71502c5578c3c96e992d6cc78842ca7e
---
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 0aed818..04294d7 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3804,7 +3804,7 @@
(EXT4_MAX_BLOCK_FILE_PHYS / EXT4_BLOCKS_PER_GROUP(sb)));
db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) /
EXT4_DESC_PER_BLOCK(sb);
- if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
+ if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_META_BG)) {
if (le32_to_cpu(es->s_first_meta_bg) >= db_count) {
ext4_msg(sb, KERN_WARNING,
"first meta block group too large: %u "