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kernel: bump kernel 4.9 to version 4.9.120

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The following patch was integrated upstream:
 * target/linux/generic/backport-4.9/500-ext4-fix-check-to-prevent-initializing-reserved-inod.patch

This fixes tries to work around the following security problems:
 * CVE-2018-3620 L1 Terminal Fault OS, SMM related aspects
 * CVE-2018-3646 L1 Terminal Fault Virtualization related aspects

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Hauke Mehrtens 2018-08-15 21:50:09 +02:00
parent e4bad5f0ac
commit b547ab3143
2 changed files with 2 additions and 67 deletions
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4
include/kernel-version.mk
View file

@ -3,11 +3,11 @@
LINUX_RELEASE?=1
LINUX_VERSION-3.18 = .71
LINUX_VERSION-4.9 = .119
LINUX_VERSION-4.9 = .120
LINUX_VERSION-4.14 = .63
LINUX_KERNEL_HASH-3.18.71 = 5abc9778ad44ce02ed6c8ab52ece8a21c6d20d21f6ed8a19287b4a38a50c1240
LINUX_KERNEL_HASH-4.9.119 = 49e17f01a1a607b4b1ab28dc7177e103943151866c3956fd83edc8a4aae60b35
LINUX_KERNEL_HASH-4.9.120 = d75af506865edc8145a344c4e73c3bb1000e6c9f1c3489b8dae47ca8f033fd91
LINUX_KERNEL_HASH-4.14.63 = cd2e52f0e7ba861afa91cf487b2f45e5174115870f256a1d65996647b7bcc6d3
remove_uri_prefix=$(subst git://,,$(subst http://,,$(subst https://,,$(1))))

65
target/linux/generic/backport-4.9/500-ext4-fix-check-to-prevent-initializing-reserved-inod.patch
View file

@ -1,65 +0,0 @@
From 5012284700775a4e6e3fbe7eac4c543c4874b559 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Sat, 28 Jul 2018 08:12:04 -0400
Subject: [PATCH] ext4: fix check to prevent initializing reserved inodes
Commit 8844618d8aa7: "ext4: only look at the bg_flags field if it is
valid" will complain if block group zero does not have the
EXT4_BG_INODE_ZEROED flag set. Unfortunately, this is not correct,
since a freshly created file system has this flag cleared. It gets
almost immediately after the file system is mounted read-write --- but
the following somewhat unlikely sequence will end up triggering a
false positive report of a corrupted file system:
mkfs.ext4 /dev/vdc
mount -o ro /dev/vdc /vdc
mount -o remount,rw /dev/vdc
Instead, when initializing the inode table for block group zero, test
to make sure that itable_unused count is not too large, since that is
the case that will result in some or all of the reserved inodes
getting cleared.
This fixes the failures reported by Eric Whiteney when running
generic/230 and generic/231 in the the nojournal test case.
Fixes: 8844618d8aa7 ("ext4: only look at the bg_flags field if it is valid")
Reported-by: Eric Whitney <enwlinux@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
fs/ext4/ialloc.c | 5 ++++-
fs/ext4/super.c | 8 +-------
2 files changed, 5 insertions(+), 8 deletions(-)
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -1316,7 +1316,10 @@ int ext4_init_inode_table(struct super_b
ext4_itable_unused_count(sb, gdp)),
sbi->s_inodes_per_block);
- if ((used_blks < 0) || (used_blks > sbi->s_itb_per_group)) {
+ if ((used_blks < 0) || (used_blks > sbi->s_itb_per_group) ||
+ ((group == 0) && ((EXT4_INODES_PER_GROUP(sb) -
+ ext4_itable_unused_count(sb, gdp)) <
+ EXT4_FIRST_INO(sb)))) {
ext4_error(sb, "Something is wrong with group %u: "
"used itable blocks: %d; "
"itable unused count: %u",
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3031,14 +3031,8 @@ static ext4_group_t ext4_has_uninit_itab
if (!gdp)
continue;
- if (gdp->bg_flags & cpu_to_le16(EXT4_BG_INODE_ZEROED))
- continue;
- if (group != 0)
+ if (!(gdp->bg_flags & cpu_to_le16(EXT4_BG_INODE_ZEROED)))
break;
- ext4_error(sb, "Inode table for bg 0 marked as "
- "needing zeroing");
- if (sb->s_flags & MS_RDONLY)
- return ngroups;
}
return group;