kernel: bump kernel 4.9 to version 4.9.120

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 <[email protected]>

include/kernel-version.mk

@@ -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))))

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

@@ -1,65 +0,0 @@
-From 5012284700775a4e6e3fbe7eac4c543c4874b559 Mon Sep 17 00:00:00 2001
-From: Theodore Ts'o <[email protected]>
-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 <[email protected]>
-Signed-off-by: Theodore Ts'o <[email protected]>
----
- 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;