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authorJosh Boyer <jwboyer@fedoraproject.org>2015-06-15 08:49:37 -0400
committerJosh Boyer <jwboyer@fedoraproject.org>2015-06-15 08:49:37 -0400
commit5c0a6a5f01069496e87cba12e5b6a10359b439d8 (patch)
tree2476691407ac4b06b8aa72b61485c19041254a23
parentc68e8929a177ca34b09b06dcf41f20f9b955b358 (diff)
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Linux v4.1-rc8
-rw-r--r--Kbuild-Add-an-option-to-enable-GCC-VTA.patch2
-rw-r--r--Revert-Revert-ACPI-video-change-acpi-video-brightnes.patch4
-rw-r--r--kernel.spec11
-rw-r--r--mm-shmem_zero_setup-skip-security-check-and-lockdep-.patch47
-rw-r--r--sources3
5 files changed, 60 insertions, 7 deletions
diff --git a/Kbuild-Add-an-option-to-enable-GCC-VTA.patch b/Kbuild-Add-an-option-to-enable-GCC-VTA.patch
index 9452c52eb..4d538035d 100644
--- a/Kbuild-Add-an-option-to-enable-GCC-VTA.patch
+++ b/Kbuild-Add-an-option-to-enable-GCC-VTA.patch
@@ -43,7 +43,7 @@ Signed-off-by: Josh Stone <jistone@redhat.com>
2 files changed, 21 insertions(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
-index 40a8b068ac26..6f53fdb40695 100644
+index 3ba504496cb2..43361e22734a 100644
--- a/Makefile
+++ b/Makefile
@@ -704,7 +704,11 @@ KBUILD_CFLAGS += -fomit-frame-pointer
diff --git a/Revert-Revert-ACPI-video-change-acpi-video-brightnes.patch b/Revert-Revert-ACPI-video-change-acpi-video-brightnes.patch
index f8e7a8fd8..5d1f378bc 100644
--- a/Revert-Revert-ACPI-video-change-acpi-video-brightnes.patch
+++ b/Revert-Revert-ACPI-video-change-acpi-video-brightnes.patch
@@ -15,10 +15,10 @@ Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
-index 61ab1628a057..8a62b65a7597 100644
+index 6726139bd289..a5e55141ae64 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
-@@ -3865,7 +3865,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
+@@ -3871,7 +3871,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
the allocated input device; If set to 0, video driver
will only send out the event without touching backlight
brightness level.
diff --git a/kernel.spec b/kernel.spec
index 0712a5129..056fadf53 100644
--- a/kernel.spec
+++ b/kernel.spec
@@ -65,9 +65,9 @@ Summary: The Linux kernel
# The next upstream release sublevel (base_sublevel+1)
%define upstream_sublevel %(echo $((%{base_sublevel} + 1)))
# The rc snapshot level
-%define rcrev 7
+%define rcrev 8
# The git snapshot level
-%define gitrev 1
+%define gitrev 0
# Set rpm version accordingly
%define rpmversion 4.%{upstream_sublevel}.0
%endif
@@ -618,6 +618,8 @@ Patch26221: drm-i915-turn-off-wc-mmaps.patch
# CVE-2015-XXXX rhbz 1230770 1230774
Patch26231: kvm-x86-fix-kvm_apic_has_events-to-check-for-NULL-po.patch
+Patch26232: mm-shmem_zero_setup-skip-security-check-and-lockdep-.patch
+
# END OF PATCH DEFINITIONS
%endif
@@ -1354,6 +1356,8 @@ ApplyPatch drm-i915-turn-off-wc-mmaps.patch
# CVE-2015-XXXX rhbz 1230770 1230774
ApplyPatch kvm-x86-fix-kvm_apic_has_events-to-check-for-NULL-po.patch
+ApplyPatch mm-shmem_zero_setup-skip-security-check-and-lockdep-.patch
+
# END OF PATCH APPLICATIONS
%endif
@@ -2218,6 +2222,9 @@ fi
#
#
%changelog
+* Mon Jun 15 2015 Josh Boyer <jwboyer@fedoraproject.org> - 4.1.0-0.rc8.git0.1
+- Linux v4.1-rc8
+
* Fri Jun 12 2015 Josh Boyer <jwboyer@fedoraproject.org> - 4.1.0-0.rc7.git1.1
- Linux v4.1-rc7-72-gdf5f4158415b
diff --git a/mm-shmem_zero_setup-skip-security-check-and-lockdep-.patch b/mm-shmem_zero_setup-skip-security-check-and-lockdep-.patch
new file mode 100644
index 000000000..5fba81415
--- /dev/null
+++ b/mm-shmem_zero_setup-skip-security-check-and-lockdep-.patch
@@ -0,0 +1,47 @@
+From: Hugh Dickins <hughd@google.com>
+Date: Sun, 14 Jun 2015 09:48:09 -0700
+Subject: [PATCH] mm: shmem_zero_setup skip security check and lockdep conflict
+ with XFS
+
+It appears that, at some point last year, XFS made directory handling
+changes which bring it into lockdep conflict with shmem_zero_setup():
+it is surprising that mmap() can clone an inode while holding mmap_sem,
+but that has been so for many years.
+
+Since those few lockdep traces that I've seen all implicated selinux,
+I'm hoping that we can use the __shmem_file_setup(,,,S_PRIVATE) which
+v3.13's commit c7277090927a ("security: shmem: implement kernel private
+shmem inodes") introduced to avoid LSM checks on kernel-internal inodes:
+the mmap("/dev/zero") cloned inode is indeed a kernel-internal detail.
+
+This also covers the !CONFIG_SHMEM use of ramfs to support /dev/zero
+(and MAP_SHARED|MAP_ANONYMOUS). I thought there were also drivers
+which cloned inode in mmap(), but if so, I cannot locate them now.
+
+Reported-and-tested-by: Prarit Bhargava <prarit@redhat.com>
+Reported-by: Daniel Wagner <wagi@monom.org>
+Reported-by: Morten Stevens <mstevens@fedoraproject.org>
+Signed-off-by: Hugh Dickins <hughd@google.com>
+---
+ mm/shmem.c | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/mm/shmem.c b/mm/shmem.c
+index de981370fbc5..47d536e59fc0 100644
+--- a/mm/shmem.c
++++ b/mm/shmem.c
+@@ -3401,7 +3401,13 @@ int shmem_zero_setup(struct vm_area_struct *vma)
+ struct file *file;
+ loff_t size = vma->vm_end - vma->vm_start;
+
+- file = shmem_file_setup("dev/zero", size, vma->vm_flags);
++ /*
++ * Cloning a new file under mmap_sem leads to a lock ordering conflict
++ * between XFS directory reading and selinux: since this file is only
++ * accessible to the user through its mapping, use S_PRIVATE flag to
++ * bypass file security, in the same way as shmem_kernel_file_setup().
++ */
++ file = __shmem_file_setup("dev/zero", size, vma->vm_flags, S_PRIVATE);
+ if (IS_ERR(file))
+ return PTR_ERR(file);
+
diff --git a/sources b/sources
index 383236476..77901e19d 100644
--- a/sources
+++ b/sources
@@ -1,4 +1,3 @@
a86916bd12798220da9eb4a1eec3616d linux-4.0.tar.xz
d125eecce68ab6fb5f1f23523c2c04b8 perf-man-4.0.tar.gz
-a831062aea035ee4bae52e59ccf0cf71 patch-4.1-rc7.xz
-cfa3119ee9aa2f468cf6dc37db9f9354 patch-4.1-rc7-git1.xz
+9bd2e3045ff03759558a5d94a27dfdc4 patch-4.1-rc8.xz