Matthew Garrett [Wed, 8 Nov 2017 15:11:34 +0000 (15:11 +0000)]
ACPI: Limit access to custom_method when the kernel is locked down
custom_method effectively allows arbitrary access to system memory, making
it possible for an attacker to circumvent restrictions on module loading.
Disable it if the kernel is locked down.
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: "Lee, Chun-Yi" <jlee@suse.com>
cc: linux-acpi@vger.kernel.org
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0015-ACPI-Limit-access-to-custom_method-when-the-kernel-i.patch
Matthew Garrett [Wed, 8 Nov 2017 15:11:34 +0000 (15:11 +0000)]
asus-wmi: Restrict debugfs interface when the kernel is locked down
We have no way of validating what all of the Asus WMI methods do on a given
machine - and there's a risk that some will allow hardware state to be
manipulated in such a way that arbitrary code can be executed in the
kernel, circumventing module loading restrictions. Prevent that if the
kernel is locked down.
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: "Lee, Chun-Yi" <jlee@suse.com>
cc: acpi4asus-user@lists.sourceforge.net
cc: platform-driver-x86@vger.kernel.org
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0014-asus-wmi-Restrict-debugfs-interface-when-the-kernel-.patch
Matthew Garrett [Wed, 8 Nov 2017 15:11:34 +0000 (15:11 +0000)]
x86/msr: Restrict MSR access when the kernel is locked down
Writing to MSRs should not be allowed if the kernel is locked down, since
it could lead to execution of arbitrary code in kernel mode. Based on a
patch by Kees Cook.
MSR accesses are logged for the purposes of building up a whitelist as per
Alan Cox's suggestion.
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Kees Cook <keescook@chromium.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: "Lee, Chun-Yi" <jlee@suse.com>
cc: x86@kernel.org
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0013-x86-msr-Restrict-MSR-access-when-the-kernel-is-locke.patch
Matthew Garrett [Wed, 8 Nov 2017 15:11:34 +0000 (15:11 +0000)]
x86: Lock down IO port access when the kernel is locked down
IO port access would permit users to gain access to PCI configuration
registers, which in turn (on a lot of hardware) give access to MMIO
register space. This would potentially permit root to trigger arbitrary
DMA, so lock it down by default.
This also implicitly locks down the KDADDIO, KDDELIO, KDENABIO and
KDDISABIO console ioctls.
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: "Lee, Chun-Yi" <jlee@suse.com>
cc: x86@kernel.org
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0012-x86-Lock-down-IO-port-access-when-the-kernel-is-lock.patch
Matthew Garrett [Wed, 8 Nov 2017 15:11:33 +0000 (15:11 +0000)]
PCI: Lock down BAR access when the kernel is locked down
Any hardware that can potentially generate DMA has to be locked down in
order to avoid it being possible for an attacker to modify kernel code,
allowing them to circumvent disabled module loading or module signing.
Default to paranoid - in future we can potentially relax this for
sufficiently IOMMU-isolated devices.
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: "Lee, Chun-Yi" <jlee@suse.com>
cc: linux-pci@vger.kernel.org
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0011-PCI-Lock-down-BAR-access-when-the-kernel-is-locked-d.patch
Matthew Garrett [Wed, 8 Nov 2017 15:11:33 +0000 (15:11 +0000)]
uswsusp: Disable when the kernel is locked down
uswsusp allows a user process to dump and then restore kernel state, which
makes it possible to modify the running kernel. Disable this if the kernel
is locked down.
Signed-off-by: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: "Lee, Chun-Yi" <jlee@suse.com> Reviewed-by: James Morris <james.l.morris@oracle.com>
cc: linux-pm@vger.kernel.org
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0010-uswsusp-Disable-when-the-kernel-is-locked-down.patch
Josh Boyer [Wed, 8 Nov 2017 15:11:33 +0000 (15:11 +0000)]
hibernate: Disable when the kernel is locked down
There is currently no way to verify the resume image when returning
from hibernate. This might compromise the signed modules trust model,
so until we can work with signed hibernate images we disable it when the
kernel is locked down.
Chun-Yi Lee [Wed, 8 Nov 2017 15:11:33 +0000 (15:11 +0000)]
kexec_file: Restrict at runtime if the kernel is locked down
When KEXEC_VERIFY_SIG is not enabled, kernel should not load images through
kexec_file systemcall if the kernel is locked down unless IMA can be used
to validate the image.
This code was showed in Matthew's patch but not in git:
https://lkml.org/lkml/2015/3/13/778
Cc: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: Chun-Yi Lee <jlee@suse.com> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: James Morris <james.l.morris@oracle.com>
cc: kexec@lists.infradead.org
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0008-kexec_file-Restrict-at-runtime-if-the-kernel-is-lock.patch
Dave Young [Wed, 8 Nov 2017 15:11:32 +0000 (15:11 +0000)]
Copy secure_boot flag in boot params across kexec reboot
Kexec reboot in case secure boot being enabled does not keep the secure
boot mode in new kernel, so later one can load unsigned kernel via legacy
kexec_load. In this state, the system is missing the protections provided
by secure boot.
Adding a patch to fix this by retain the secure_boot flag in original
kernel.
secure_boot flag in boot_params is set in EFI stub, but kexec bypasses the
stub. Fixing this issue by copying secure_boot flag across kexec reboot.
Signed-off-by: Dave Young <dyoung@redhat.com> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: "Lee, Chun-Yi" <jlee@suse.com>
cc: kexec@lists.infradead.org
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0007-Copy-secure_boot-flag-in-boot-params-across-kexec-re.patch
Matthew Garrett [Wed, 8 Nov 2017 15:11:32 +0000 (15:11 +0000)]
kexec: Disable at runtime if the kernel is locked down
kexec permits the loading and execution of arbitrary code in ring 0, which
is something that lock-down is meant to prevent. It makes sense to disable
kexec in this situation.
This does not affect kexec_file_load() which can check for a signature on the
image to be booted.
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Dave Young <dyoung@redhat.com> Reviewed-by: "Lee, Chun-Yi" <jlee@suse.com> Reviewed-by: James Morris <james.l.morris@oracle.com>
cc: kexec@lists.infradead.org
[bwh: Adjust context to apply after commit a210fd32a46b
"kexec: add call to LSM hook in original kexec_load syscall"]
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0006-kexec-Disable-at-runtime-if-the-kernel-is-locked-dow.patch
Matthew Garrett [Wed, 8 Nov 2017 15:11:32 +0000 (15:11 +0000)]
Restrict /dev/{mem,kmem,port} when the kernel is locked down
Allowing users to read and write to core kernel memory makes it possible
for the kernel to be subverted, avoiding module loading restrictions, and
also to steal cryptographic information.
Disallow /dev/mem and /dev/kmem from being opened this when the kernel has
been locked down to prevent this.
Also disallow /dev/port from being opened to prevent raw ioport access and
thus DMA from being used to accomplish the same thing.
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: "Lee, Chun-Yi" <jlee@suse.com>
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0005-Restrict-dev-mem-kmem-port-when-the-kernel-is-locked.patch
David Howells [Wed, 8 Nov 2017 15:11:32 +0000 (15:11 +0000)]
Enforce module signatures if the kernel is locked down
If the kernel is locked down, require that all modules have valid
signatures that we can verify or that IMA can validate the file.
Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: "Lee, Chun-Yi" <jlee@suse.com> Reviewed-by: James Morris <james.l.morris@oracle.com>
[bwh: Adjust context to apply after commits 2c8fd268f418
"module: Do not access sig_enforce directly" and 5fdc7db6448a
"module: setup load info before module_sig_check()"]
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0004-Enforce-module-signatures-if-the-kernel-is-locked-do.patch
Mimi Zohar [Wed, 8 Nov 2017 15:11:32 +0000 (15:11 +0000)]
ima: require secure_boot rules in lockdown mode
Require the "secure_boot" rules, whether or not it is specified
on the boot command line, for both the builtin and custom policies
in secure boot lockdown mode.
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Signed-off-by: David Howells <dhowells@redhat.com>
[bwh: Adjust context to apply after commits 6f0911a666d1
"ima: fix updating the ima_appraise flag" and ef96837b0de4
"ima: add build time policy"]
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0003-ima-require-secure_boot-rules-in-lockdown-mode.patch
Kyle McMartin [Wed, 8 Nov 2017 15:11:31 +0000 (15:11 +0000)]
Add a SysRq option to lift kernel lockdown
Make an option to provide a sysrq key that will lift the kernel lockdown,
thereby allowing the running kernel image to be accessed and modified.
On x86 this is triggered with SysRq+x, but this key may not be available on
all arches, so it is set by setting LOCKDOWN_LIFT_KEY in asm/setup.h.
Since this macro must be defined in an arch to be able to use this facility
for that arch, the Kconfig option is restricted to arches that support it.
Signed-off-by: Kyle McMartin <kyle@redhat.com> Signed-off-by: David Howells <dhowells@redhat.com>
cc: x86@kernel.org
[bwh: Forward-ported to 4.15]
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0002-Add-a-SysRq-option-to-lift-kernel-lockdown.patch
David Howells [Wed, 8 Nov 2017 15:11:31 +0000 (15:11 +0000)]
Add the ability to lock down access to the running kernel image
Provide a single call to allow kernel code to determine whether the system
should be locked down, thereby disallowing various accesses that might
allow the running kernel image to be changed including the loading of
modules that aren't validly signed with a key we recognise, fiddling with
MSR registers and disallowing hibernation,
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: James Morris <james.l.morris@oracle.com>
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0001-Add-the-ability-to-lock-down-access-to-the-running-k.patch
The reverted commit added page reference counting to iomap page
structures that are used to track block size < page size state. This
was supposed to align the code with page migration page accounting
assumptions, but what it has done instead is break XFS filesystems.
Every fstests run I've done on sub-page block size XFS filesystems
has since picking up this commit 2 days ago has failed with bad page
state errors such as:
generic/038 454s ...
run fstests generic/038 at 2018-12-20 18:43:05
XFS (sdc): Unmounting Filesystem
XFS (sdc): Mounting V5 Filesystem
XFS (sdc): Ending clean mount
BUG: Bad page state in process kswapd0 pfn:3a7fa
page:ffffea0000ccbeb0 count:0 mapcount:0 mapping:ffff88800d9b6360 index:0x1
flags: 0xfffffc0000000()
raw: 000fffffc0000000dead000000000100dead000000000200ffff88800d9b6360
raw: 0000000000000001000000000000000000000000ffffffff
page dumped because: non-NULL mapping
CPU: 0 PID: 676 Comm: kswapd0 Not tainted 4.20.0-rc6-dgc+ #915
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014
Call Trace:
dump_stack+0x67/0x90
bad_page.cold.116+0x8a/0xbd
free_pcppages_bulk+0x4bf/0x6a0
free_unref_page_list+0x10f/0x1f0
shrink_page_list+0x49d/0xf50
shrink_inactive_list+0x19d/0x3b0
shrink_node_memcg.constprop.77+0x398/0x690
? shrink_slab.constprop.81+0x278/0x3f0
shrink_node+0x7a/0x2f0
kswapd+0x34b/0x6d0
? node_reclaim+0x240/0x240
kthread+0x11f/0x140
? __kthread_bind_mask+0x60/0x60
ret_from_fork+0x24/0x30
Disabling lock debugging due to kernel taint
....
The failures are from anyway that frees pages and empties the
per-cpu page magazines, so it's not a predictable failure or an easy
to debug failure.
generic/038 is a reliable reproducer of this problem - it has a 9 in
10 failure rate on one of my test machines. Failure on other
machines have been at random points in fstests runs but every run
has ended up tripping this problem. Hence generic/038 was used to
bisect the failure because it was the most reliable failure.
It is too close to the 4.20 release (not to mention holidays) to
try to diagnose, fix and test the underlying cause of the problem,
so reverting the commit is the only option we have right now. The
revert has been tested against a current tot 4.20-rc7+ kernel across
multiple machines running sub-page block size XFs filesystems and
none of the bad page state failures have been seen.
Signed-off-by: Dave Chinner <dchinner@redhat.com> Cc: Piotr Jaroszynski <pjaroszynski@nvidia.com> Cc: Christoph Hellwig <hch@lst.de> Cc: William Kucharski <william.kucharski@oracle.com> Cc: Darrick J. Wong <darrick.wong@oracle.com> Cc: Brian Foster <bfoster@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Gbp-Pq: Topic bugfix/all
Gbp-Pq: Name iomap-Revert-fs-iomap.c-get-put-the-page-in-iomap_pa.patch
Ben Hutchings [Sat, 4 Mar 2017 01:44:15 +0000 (01:44 +0000)]
Kbuild.include: addtree: Remove quotes before matching path
systemtap currently fails to build modules when the kernel source and
object trees are separate.
systemtap adds something like -I"/usr/share/systemtap/runtime" to
EXTRA_CFLAGS, and addtree should not adjust this as it's specifying an
absolute directory. But since make has no understanding of shell
quoting, it does anyway.
For a long time this didn't matter, because addtree would still emit
the original -I option after the adjusted one. However, commit db547ef19064 ("Kbuild: don't add obj tree in additional includes")
changed it to remove the original -I option.
Remove quotes (both double and single) before matching against the
excluded patterns.
References: https://bugs.debian.org/856474 Reported-by: Jack Henschel <jackdev@mailbox.org> Reported-by: Ritesh Raj Sarraf <rrs@debian.org> Fixes: db547ef19064 ("Kbuild: don't add obj tree in additional includes") Cc: stable@vger.kernel.org # 4.8+ Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic bugfix/all
Gbp-Pq: Name kbuild-include-addtree-remove-quotes-before-matching-path.patch
Ben Hutchings [Wed, 11 Jan 2017 04:30:40 +0000 (04:30 +0000)]
Partially revert "usb: Kconfig: using select for USB_COMMON dependency"
This reverts commit cb9c1cfc86926d0e86d19c8e34f6c23458cd3478 for
USB_LED_TRIG. This config symbol has bool type and enables extra code
in usb_common itself, not a separate driver. Enabling it should not
force usb_common to be built-in!
Fixes: cb9c1cfc8692 ("usb: Kconfig: using select for USB_COMMON dependency") Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic bugfix/all
Gbp-Pq: Name partially-revert-usb-kconfig-using-select-for-usb_co.patch
Ian Campbell [Wed, 20 Nov 2013 08:30:14 +0000 (08:30 +0000)]
phy/marvell: disable 4-port phys
The Marvell PHY was originally disabled because it can cause networking
failures on some systems. According to Lennert Buytenhek this is because some
of the variants added did not share the same register layout. Since the known
cases are all 4-ports disable those variants (indicated by a 4 in the
penultimate position of the model name) until they can be audited for
correctness.
[bwh: Also #if-out the init functions for these PHYs to avoid
compiler warnings]
Gbp-Pq: Topic bugfix/all
Gbp-Pq: Name disable-some-marvell-phys.patch
Ben Hutchings [Sat, 19 Oct 2013 18:43:35 +0000 (19:43 +0100)]
kbuild: Use -nostdinc in compile tests
gcc 4.8 and later include <stdc-predef.h> by default. In some
versions of eglibc that includes <bits/predefs.h>, but that may be
missing when building with a biarch compiler. Also <stdc-predef.h>
itself could be missing as we are only trying to build a kernel, not
userland.
The -nostdinc option disables this, though it isn't explicitly
documented. This option is already used when actually building
the kernel, but not by cc-option and other tests. This can result
in silently miscompiling the kernel.
References: https://bugs.debian.org/717557
References: https://bugs.debian.org/726861 Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic bugfix/all
Gbp-Pq: Name kbuild-use-nostdinc-in-compile-tests.patch
Juergen Gross [Tue, 20 Nov 2018 07:25:29 +0000 (08:25 +0100)]
x86/acpi, x86/boot: Take RSDP address from boot params if available
In case the RSDP address in struct boot_params is specified don't try
to find the table by searching, but take the address directly as set
by the boot loader.
Juergen Gross [Wed, 10 Oct 2018 06:14:56 +0000 (08:14 +0200)]
x86/acpi, x86/boot: Take RSDP address for boot params if available
In case the RSDP address in struct boot_params is specified don't try
to find the table by searching, but take the address directly as set
by the boot loader.
Signed-off-by: Juergen Gross <jgross@suse.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Baoquan He <bhe@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Jia Zhang <qianyue.zj@alibaba-inc.com> Cc: Len Brown <len.brown@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Pavel Machek <pavel@ucw.cz> Cc: Pavel Tatashin <pasha.tatashin@oracle.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: boris.ostrovsky@oracle.com Cc: linux-kernel@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: xen-devel@lists.xenproject.org Link: http://lkml.kernel.org/r/20181010061456.22238-4-jgross@suse.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Gbp-Pq: Topic features/x86
Gbp-Pq: Name x86-acpi-x86-boot-Take-RSDP-address-for-boot-params-.patch
Juergen Gross [Wed, 10 Oct 2018 06:14:55 +0000 (08:14 +0200)]
x86/boot: Add ACPI RSDP address to setup_header
Xen PVH guests receive the address of the RSDP table from Xen. In order
to support booting a Xen PVH guest via Grub2 using the standard x86
boot entry we need a way for Grub2 to pass the RSDP address to the
kernel.
For this purpose expand the struct setup_header to hold the physical
address of the RSDP address. Being zero means it isn't specified and
has to be located the legacy way (searching through low memory or
EBDA).
While documenting the new setup_header layout and protocol version
2.14 add the missing documentation of protocol version 2.13.
There are Grub2 versions in several distros with a downstream patch
violating the boot protocol by writing past the end of setup_header.
This requires another update of the boot protocol to enable the kernel
to distinguish between a specified RSDP address and one filled with
garbage by such a broken Grub2.
From protocol 2.14 on Grub2 will write the version it is supporting
(but never a higher value than found to be supported by the kernel)
ored with 0x8000 to the version field of setup_header. This enables
the kernel to know up to which field Grub2 has written information
to. All fields after that are supposed to be clobbered.
Ben Hutchings [Mon, 12 Feb 2018 23:59:26 +0000 (23:59 +0000)]
x86: Make x32 syscall support conditional on a kernel parameter
Enabling x32 in the standard amd64 kernel would increase its attack
surface while provide no benefit to the vast majority of its users.
No-one seems interested in regularly checking for vulnerabilities
specific to x32 (at least no-one with a white hat).
Still, adding another flavour just to turn on x32 seems wasteful. And
the only differences on syscall entry are a few instructions that mask
out the x32 flag and compare the syscall number.
Use a static key to control whether x32 syscalls are really enabled, a
Kconfig parameter to set its default value and a kernel parameter
"syscall.x32" to change it at boot time.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic features/x86
Gbp-Pq: Name x86-make-x32-syscall-support-conditional.patch
Ben Hutchings [Mon, 5 Dec 2011 04:00:58 +0000 (04:00 +0000)]
x86: memtest: WARN if bad RAM found
Since this is not a particularly thorough test, if we find any bad
bits of RAM then there is a fair chance that there are other bad bits
we fail to detect.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic features/x86
Gbp-Pq: Name x86-memtest-WARN-if-bad-RAM-found.patch
Aurelien Jarno [Sat, 22 Dec 2018 08:06:45 +0000 (08:06 +0000)]
MIPS: increase MAX_PHYSMEM_BITS on Loongson 3 only
Commit c4617318 broke Loongson-2 support and maybe even more by increasing
the value of MAX_PHYSMEM_BITS. At it is currently only needed on
Loongson-3, define it conditionally.
Note: this should be replace by upstream fix when available.
Gbp-Pq: Topic features/mips
Gbp-Pq: Name MIPS-increase-MAX-PHYSMEM-BITS-on-Loongson-3-only.patch
Uwe Kleine-König [Mon, 17 Dec 2018 08:30:10 +0000 (09:30 +0100)]
gpio: mvebu: only fail on missing clk if pwm is actually to be used
The gpio IP on Armada 370 at offset 0x18180 has neither a clk nor pwm
registers. So there is no need for a clk as the pwm isn't used anyhow.
So only check for the clk in the presence of the pwm registers. This fixes
a failure to probe the gpio driver for the above mentioned gpio device.
There is a guard hole at the beginning of the kernel address space, also
used by hypervisors. It occupies 16 PGD entries.
This reserved range is not defined explicitely, it is calculated relative
to other entities: direct mapping and user space ranges.
The calculation got broken by recent changes of the kernel memory layout:
LDT remap range is now mapped before direct mapping and makes the
calculation invalid.
The breakage leads to crash on Xen dom0 boot[1].
Define the reserved range explicitely. It's part of kernel ABI (hypervisors
expect it to be stable) and must not depend on changes in the rest of
kernel memory layout.
Ben Hutchings [Tue, 25 Sep 2018 18:44:13 +0000 (19:44 +0100)]
x86-32: Disable 3D-Now in generic config
We want the 686 flavour to run on Geode LX and similar AMD family 5
CPUs as well as family 6 and higher CPUs. This used to work with
CONFIG_M686=y. However commit 25d76ac88821 "x86/Kconfig: Explicitly
enumerate i686-class CPUs in Kconfig" in Linux 4.16 has made the
kernel require family 6 or higher.
It looks like a sensible choice would be to enable CONFIG_MGEODE_LX
and CONFIG_X86_GENERIC (for more generic optimisations), but this
currently enables CONFIG_X86_USE_3D_NOW which will cause the kernel to
crash on CPUs without the AMD-specific 3D-Now instructions.
Make CONFIG_X86_USE_3DNOW depend on CONFIG_X86_GENERIC being disabled.
Gbp-Pq: Topic bugfix/x86
Gbp-Pq: Name x86-32-disable-3dnow-in-generic-config.patch
Geoff Levand [Wed, 13 Jun 2018 17:56:08 +0000 (10:56 -0700)]
arm64/acpi: Add fixup for HPE m400 quirks
Adds a new ACPI init routine acpi_fixup_m400_quirks that adds
a work-around for HPE ProLiant m400 APEI firmware problems.
The work-around disables APEI when CONFIG_ACPI_APEI is set and
m400 firmware is detected. Without this fixup m400 systems
experience errors like these on startup:
powerpc/boot: Fix missing crc32poly.h when building with KERNEL_XZ
After commit faa16bc404d7 ("lib: Use existing define with
polynomial") the lib/xz/xz_crc32.c includes a header from include/linux
directory thus any other user of this code should define proper include
path.
This fixes the build error on powerpc with CONFIG_KERNEL_XZ:
In file included from ../arch/powerpc/boot/../../../lib/decompress_unxz.c:233:0,
from ../arch/powerpc/boot/decompress.c:42:
../arch/powerpc/boot/../../../lib/xz/xz_crc32.c:18:29: fatal error: linux/crc32poly.h: No such file or directory
Reported-by: Michal Kubecek <mkubecek@suse.cz> Fixes: faa16bc404d7 ("lib: Use existing define with polynomial") Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reported-by: kbuild test robot <lkp@intel.com> Reported-by: Meelis Roos <mroos@linux.ee> Tested-by: Michal Kubecek <mkubecek@suse.cz>
Gbp-Pq: Topic bugfix/powerpc
Gbp-Pq: Name powerpc-boot-fix-missing-crc32poly.h-when-building-with-kernel_xz.patch
Ben Hutchings [Wed, 11 Jul 2018 22:40:55 +0000 (23:40 +0100)]
ARM: mm: Export __sync_icache_dcache() for xen-privcmd
The xen-privcmd driver, which can be modular, calls set_pte_at()
which in turn may call __sync_icache_dcache().
The call to __sync_icache_dcache() may be optimised out because it is
conditional on !pte_special(), and xen-privcmd calls pte_mkspecial().
However, in a non-LPAE configuration there is no "special" bit and the
call is really unconditional.
Fixes: 3ad0876554ca ("xen/privcmd: add IOCTL_PRIVCMD_MMAP_RESOURCE") Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic bugfix/arm
Gbp-Pq: Name arm-mm-export-__sync_icache_dcache-for-xen-privcmd.patch
James Clarke [Sun, 18 Feb 2018 15:54:44 +0000 (15:54 +0000)]
powerpc/lib/Makefile: Don't pull in quad.o for 32-bit kernels
The functions exported by quad.o are only used when guarded by
__powerpc64__ and so are unused on 32-bit kernels. Moreover, their
implementations make use of instructions which will cause an illegal
instruction error on 32-bit processors, and are not accepted by the
assembler for SPE processors.
Fixes: 31bfdb036f12 ("powerpc: Use instruction emulation infrastructure to handle alignment faults") Signed-off-by: James Clarke <jrtc27@jrtc27.com>
Gbp-Pq: Topic bugfix/powerpc
Gbp-Pq: Name powerpc-lib-makefile-don-t-pull-in-quad.o-for-32-bit.patch
James Clarke [Thu, 7 Dec 2017 20:32:44 +0000 (20:32 +0000)]
powerpc/lib/sstep: Fix building for powerpcspe
On powerpcspe, ptesync is not a recognised instruction and so fails to
assemble. We don't expect to have to emulate an lwsync or a ptesync on a
32-bit kernel, so just ifdef them out, and catch any unexpected barrier
types.
Fixes: 3cdfcbfd32b9 ("powerpc: Change analyse_instr so it doesn't modify *regs") Signed-off-by: James Clarke <jrtc27@jrtc27.com>
Gbp-Pq: Topic bugfix/powerpc
Gbp-Pq: Name powerpc-lib-sstep-fix-building-for-powerpcspe.patch
Ben Hutchings [Thu, 30 Nov 2017 00:29:18 +0000 (00:29 +0000)]
mmap: Add an exception to the stack gap for Hotspot JVM compatibility
The Hotspot JVM can easily exhaust the default stack, and has a
SIGSEGV handler to cope with this by switching to a new stack segment.
However, on i386 it creates a single writable and executable page just
under the stack limit as a workaround for a bug in Exec Shield. That
together with the enlarged stack gap causes the SIGSEGV handler to be
triggered when the stack pointer is further away from the stack limit,
and it doesn't recognise this as being a stack overflow.
This specifically affects programs that use JNI. Hotspot doesn't
normally run Java code on the initial thread.
Reduce the effective stack guard gap on x86 if the previous vma is
a single page allocated as MAP_FIXED.
References: https://bugs.debian.org/865303 Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic bugfix/x86
Gbp-Pq: Name mmap-add-an-exception-to-the-stack-gap-for-hotspot-jvm.patch
Ben Hutchings [Sat, 19 Aug 2017 20:42:09 +0000 (21:42 +0100)]
sh: Do not use hyphen in exported variable names
arch/sh/Makefile defines and exports ld-bfd to be used by
arch/sh/boot/Makefile and arch/sh/boot/compressed/Makefile. Similarly
arch/sh/boot/Makefile defines and exports suffix-y to be used by
arch/sh/boot/compressed/Makefile. However some shells, including
dash, will not pass through environment variables whose name includes
a hyphen. Usually GNU make does not use a shell to recurse, but if
e.g. $(srctree) contains '~' it will use a shell here.
Rename these variables to ld_bfd and suffix_y.
References: https://buildd.debian.org/status/fetch.php?pkg=linux&arch=sh4&ver=4.13%7Erc5-1%7Eexp1&stamp=1502943967&raw=0 Fixes: ef9b542fce00 ("sh: bzip2/lzma uImage support.") Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic bugfix/sh
Gbp-Pq: Name sh-boot-do-not-use-hyphen-in-exported-variable-name.patch
Ben Hutchings [Sat, 22 Jul 2017 16:37:33 +0000 (17:37 +0100)]
perf tools: Fix unwind build on i386
EINVAL may not be defined when building unwind-libunwind.c with
REMOTE_UNWIND_LIBUNWIND, resulting in a compiler error in
LIBUNWIND__ARCH_REG_ID(). Its only caller, access_reg(), only checks
for a negative return value and doesn't care what it is. So change
-EINVAL to -1.
Fixes: 52ffe0ff02fc ("Support x86(32-bit) cross platform callchain unwind.") Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic bugfix/x86
Gbp-Pq: Name perf-tools-fix-unwind-build-on-i386.patch
Yang Jiaxun [Tue, 4 Jul 2017 14:39:19 +0000 (14:39 +0000)]
platform/x86: ideapad-laptop: Add several models to no_hw_rfkill
Some Lenovo ideapad models do not have hardware rfkill switches, but
trying to read the rfkill switches through the ideapad-laptop module.
It caused to always reported blocking breaking wifi.
Fix it by adding those models to no_hw_rfkill_list.
Signed-off-by: Yang Jiaxun <yjx@flygoat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Gbp-Pq: Topic bugfix/x86
Gbp-Pq: Name platform-x86-ideapad-laptop-add-several-models-to-no.patch
Sven Eckelmann [Sat, 1 Jul 2017 06:20:18 +0000 (08:20 +0200)]
platform/x86: ideapad-laptop: Add IdeaPad V510-15IKB to no_hw_rfkill
Like other Lenovo models the IdeaPad V510-15IKB does not have an hw
rfkill switch. This results in hard-blocked radios after boot, resulting
in always blocked radios rendering them unusable.
Add the IdeaPad V510-15IKB to the no_hw_rfkill DMI list and allows using
the built-in radios.
Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Gbp-Pq: Topic bugfix/x86
Gbp-Pq: Name platform-x86-ideapad-laptop-add-ideapad-v510-15ikb-t.patch
Andy Shevchenko [Tue, 21 Feb 2017 19:53:48 +0000 (20:53 +0100)]
platform/x86: ideapad-laptop: Add IdeaPad V310-15ISK to no_hw_rfkill
Like other Lenovo models the IdeaPad V310-15ISK does not have an hw
rfkill switch. This results in hard-blocked radios after boot, resulting
in always blocked radios rendering them unusable.
Add the IdeaPad V310-15ISK to the no_hw_rfkill DMI list and allows using
the built-in radios.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Gbp-Pq: Topic bugfix/x86
Gbp-Pq: Name platform-x86-ideapad-laptop-add-ideapad-v310-15isk-t.patch
Sven Rebhan [Tue, 21 Feb 2017 19:53:48 +0000 (20:53 +0100)]
platform/x86: ideapad-laptop: Add IdeaPad 310-15IKB to no_hw_rfkill
Like other Lenovo models the IdeaPad 310-15IKB does not have an hw rfkill
switch. This results in hard-blocked radios after boot, resulting in
always blocked radios rendering them unusable.
Add the IdeaPad 310-15IKB to the no_hw_rfkill DMI list and allows using
the built-in radios.
Signed-off-by: Sven Rebhan <Sven.Rebhan@googlemail.com>
[andy: massaged commit message] Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Gbp-Pq: Topic bugfix/x86
Gbp-Pq: Name platform-x86-ideapad-laptop-add-ideapad-310-15ikb-to.patch
Ben Hutchings [Fri, 17 Feb 2017 01:30:30 +0000 (01:30 +0000)]
ARM: dts: kirkwood: Fix SATA pinmux-ing for TS419
The old board code for the TS419 assigns MPP pins 15 and 16 as SATA
activity signals (and none as SATA presence signals). Currently the
device tree assigns the SoC's default pinmux groups for SATA, which
conflict with the second Ethernet port.
Reported-by: gmbh@gazeta.pl Tested-by: gmbh@gazeta.pl
References: https://bugs.debian.org/855017 Cc: stable@vger.kernel.org # 3.15+ Fixes: 934b524b3f49 ("ARM: Kirkwood: Add DT description of QNAP 419") Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic bugfix/arm
Gbp-Pq: Name arm-dts-kirkwood-fix-sata-pinmux-ing-for-ts419.patch
Adam Borowski [Tue, 28 Mar 2017 14:55:05 +0000 (16:55 +0200)]
btrfs: warn about RAID5/6 being experimental at mount time
Too many people come complaining about losing their data -- and indeed,
there's no warning outside a wiki and the mailing list tribal knowledge.
Message severity chosen for consistency with XFS -- "alert" makes dmesg
produce nice red background which should get the point across.
Signed-off-by: Adam Borowski <kilobyte@angband.pl>
[bwh: Also add_taint() so this is flagged in bug reports]
Gbp-Pq: Topic debian
Gbp-Pq: Name btrfs-warn-about-raid5-6-being-experimental-at-mount.patch
Ben Hutchings [Wed, 13 Jul 2016 00:37:22 +0000 (01:37 +0100)]
fanotify: Taint on use of FANOTIFY_ACCESS_PERMISSIONS
Various free and proprietary AV products use this feature and users
apparently want it. But punting access checks to userland seems like
an easy way to deadlock the system, and there will be nothing we can
do about that. So warn and taint the kernel if this feature is
actually used.
Gbp-Pq: Topic debian
Gbp-Pq: Name fanotify-taint-on-use-of-fanotify_access_permissions.patch
Ben Hutchings [Sat, 18 Mar 2017 20:47:58 +0000 (20:47 +0000)]
fjes: Disable auto-loading
fjes matches a generic ACPI device ID, and relies on its probe
function to distinguish whether that really corresponds to a supported
device. Very few system will need the driver and it wastes memory on
all the other systems where the same device ID appears, so disable
auto-loading.
Gbp-Pq: Topic debian
Gbp-Pq: Name fjes-disable-autoload.patch
Ben Hutchings [Sat, 20 Apr 2013 14:52:02 +0000 (15:52 +0100)]
viafb: Autoload on OLPC XO 1.5 only
It appears that viafb won't work automatically on all the boards for
which it has a PCI device ID match. Currently, it is blacklisted by
udev along with most other framebuffer drivers, so this doesn't matter
much.
However, this driver is required for console support on the XO 1.5.
We need to allow it to be autoloaded on this model only, and then
un-blacklist it in udev.
Gbp-Pq: Topic bugfix/x86
Gbp-Pq: Name viafb-autoload-on-olpc-xo1.5-only.patch
Ben Hutchings [Wed, 5 Feb 2014 23:01:30 +0000 (23:01 +0000)]
snd-pcsp: Disable autoload
There are two drivers claiming the platform:pcspkr device:
- pcspkr creates an input(!) device that can only beep
- snd-pcsp creates an equivalent input device plus a PCM device that can
play barely recognisable renditions of sampled sound
snd-pcsp is blacklisted by the alsa-base package, but not everyone
installs that. On PCs where no sound is wanted at all, both drivers
will still be loaded and one or other will complain that it couldn't
claim the relevant I/O range.
In case anyone finds snd-pcsp useful, we continue to build it. But
remove the alias, to ensure it's not loaded where it's not wanted.
Gbp-Pq: Topic debian
Gbp-Pq: Name snd-pcsp-disable-autoload.patch
Ben Hutchings [Sun, 31 Mar 2013 02:58:04 +0000 (03:58 +0100)]
cdc_ncm,cdc_mbim: Use NCM by default
Devices that support both NCM and MBIM modes should be kept in NCM
mode unless there is userland support for MBIM.
Set the default value of cdc_ncm.prefer_mbim to false and leave it to
userland (modem-manager) to override this with a modprobe.conf file
once it's ready to speak MBIM.
Gbp-Pq: Topic debian
Gbp-Pq: Name cdc_ncm-cdc_mbim-use-ncm-by-default.patch
Ben Hutchings [Mon, 11 Jan 2016 15:23:55 +0000 (15:23 +0000)]
security,perf: Allow further restriction of perf_event_open
When kernel.perf_event_open is set to 3 (or greater), disallow all
access to performance events by users without CAP_SYS_ADMIN.
Add a Kconfig symbol CONFIG_SECURITY_PERF_EVENTS_RESTRICT that
makes this value the default.
This is based on a similar feature in grsecurity
(CONFIG_GRKERNSEC_PERF_HARDEN). This version doesn't include making
the variable read-only. It also allows enabling further restriction
at run-time regardless of whether the default is changed.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic features/all
Gbp-Pq: Name security-perf-allow-further-restriction-of-perf_event_open.patch
Serge Hallyn [Fri, 31 May 2013 18:12:12 +0000 (19:12 +0100)]
add sysctl to disallow unprivileged CLONE_NEWUSER by default
add sysctl to disallow unprivileged CLONE_NEWUSER by default
This is a short-term patch. Unprivileged use of CLONE_NEWUSER
is certainly an intended feature of user namespaces. However
for at least saucy we want to make sure that, if any security
issues are found, we have a fail-safe.
Ben Hutchings [Thu, 16 Feb 2017 19:09:17 +0000 (19:09 +0000)]
dccp: Disable auto-loading as mitigation against local exploits
We can mitigate the effect of vulnerabilities in obscure protocols by
preventing unprivileged users from loading the modules, so that they
are only exploitable on systems where the administrator has chosen to
load the protocol.
The 'dccp' protocol is not actively maintained or widely used.
Therefore disable auto-loading.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic debian
Gbp-Pq: Name dccp-disable-auto-loading-as-mitigation-against-local-exploits.patch
Ben Hutchings [Sat, 20 Nov 2010 02:24:55 +0000 (02:24 +0000)]
decnet: Disable auto-loading as mitigation against local exploits
Recent review has revealed several bugs in obscure protocol
implementations that can be exploited by local users for denial of
service or privilege escalation. We can mitigate the effect of any
remaining vulnerabilities in such protocols by preventing unprivileged
users from loading the modules, so that they are only exploitable on
systems where the administrator has chosen to load the protocol.
The 'decnet' protocol is unmaintained and of mostly historical
interest, and the user-space support package 'dnet-common' loads the
module explicitly. Therefore disable auto-loading.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic debian
Gbp-Pq: Name decnet-Disable-auto-loading-as-mitigation-against-lo.patch
Ben Hutchings [Fri, 19 Nov 2010 02:12:48 +0000 (02:12 +0000)]
rds: Disable auto-loading as mitigation against local exploits
Recent review has revealed several bugs in obscure protocol
implementations that can be exploited by local users for denial of
service or privilege escalation. We can mitigate the effect of any
remaining vulnerabilities in such protocols by preventing unprivileged
users from loading the modules, so that they are only exploitable on
systems where the administrator has chosen to load the protocol.
The 'rds' protocol is one such protocol that has been found to be
vulnerable, and which was not present in the 'lenny' kernel.
Therefore disable auto-loading.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic debian
Gbp-Pq: Name rds-Disable-auto-loading-as-mitigation-against-local.patch
Ben Hutchings [Fri, 19 Nov 2010 02:12:48 +0000 (02:12 +0000)]
af_802154: Disable auto-loading as mitigation against local exploits
Recent review has revealed several bugs in obscure protocol
implementations that can be exploited by local users for denial of
service or privilege escalation. We can mitigate the effect of any
remaining vulnerabilities in such protocols by preventing unprivileged
users from loading the modules, so that they are only exploitable on
systems where the administrator has chosen to load the protocol.
The 'af_802154' (IEEE 802.15.4) protocol is not widely used, was
not present in the 'lenny' kernel, and seems to receive only sporadic
maintenance. Therefore disable auto-loading.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic debian
Gbp-Pq: Name af_802154-Disable-auto-loading-as-mitigation-against.patch
Ben Hutchings [Mon, 12 Mar 2018 01:14:03 +0000 (01:14 +0000)]
firmware_class: Refer to Debian wiki page when logging missing firmware
If firmware loading fails due to a missing file, log a second error
message referring to our wiki page about firmware. This will explain
why some firmware is in non-free, or can't be packaged at all. Only
do this once per boot.
Do something similar in the radeon and amdgpu drivers, where we have
an early check to avoid failing at a point where we cannot display
anything.
Gbp-Pq: Topic debian
Gbp-Pq: Name firmware_class-refer-to-debian-wiki-firmware-page.patch
Ben Hutchings [Tue, 8 Jan 2013 03:25:52 +0000 (03:25 +0000)]
radeon, amdgpu: Firmware is required for DRM and KMS on R600 onward
radeon requires firmware/microcode for the GPU in all chips, but for
newer chips (apparently R600 'Evergreen' onward) it also expects
firmware for the memory controller and other sub-blocks.
radeon attempts to gracefully fall back and disable some features if
the firmware is not available, but becomes unstable - the framebuffer
and/or system memory may be corrupted, or the display may stay black.
Therefore, perform a basic check for the existence of
/lib/firmware/{radeon,amdgpu} when a device is probed, and abort if it
is missing, except for the pre-R600 case.
Gbp-Pq: Topic bugfix/all
Gbp-Pq: Name radeon-amdgpu-firmware-is-required-for-drm-and-kms-on-r600-onward.patch
Ben Hutchings [Sun, 9 Dec 2012 16:02:00 +0000 (16:02 +0000)]
firmware_class: Log every success and failure against given device
The hundreds of users of request_firmware() have nearly as many
different log formats for reporting failures. They also have only the
vaguest hint as to what went wrong; only firmware_class really knows
that. Therefore, add specific log messages for the failure modes that
aren't currently logged.
In case of a driver that tries multiple names, this may result in the
impression that it failed to initialise. Therefore, also log successes.
This makes many error messages in drivers redundant, which will be
removed in later patches.
This does not cover the case where we fall back to a user-mode helper
(which is no longer enabled in Debian).
NOTE: hw-detect will depend on the "firmware: failed to load %s (%d)\n"
format to detect missing firmware.
Gbp-Pq: Topic bugfix/all
Gbp-Pq: Name firmware_class-log-every-success-and-failure.patch
Ben Hutchings [Sat, 22 Dec 2018 08:06:45 +0000 (08:06 +0000)]
iwlwifi: Do not request unreleased firmware for IWL6000
The iwlwifi driver currently supports firmware API versions 4-6 for
these devices. It will request the file for the latest supported
version and then fall back to earlier versions. However, the latest
version that has actually been released is 4, so we expect the
requests for versions 6 and then 5 to fail.
The installer appears to report any failed request, and it is probably
not easy to detect that this particular failure is harmless. So stop
requesting the unreleased firmware.
Gbp-Pq: Topic debian
Gbp-Pq: Name iwlwifi-do-not-request-unreleased-firmware.patch
Ben Hutchings [Mon, 24 Aug 2009 22:19:58 +0000 (23:19 +0100)]
af9005: Use request_firmware() to load register init script
Read the register init script from the Windows driver. This is sick
but should avoid the potential copyright infringement in distributing
a version of the script which is directly derived from the driver.
Gbp-Pq: Topic features/all
Gbp-Pq: Name drivers-media-dvb-usb-af9005-request_firmware.patch
Ben Hutchings [Fri, 22 Jun 2018 16:27:00 +0000 (17:27 +0100)]
android: Enable building ashmem and binder as modules
We want to enable use of the Android ashmem and binder drivers to
support Anbox, but they should not be built-in as that would waste
resources and increase security attack surface on systems that don't
need them.
- Add a MODULE_LICENSE declaration to ashmem
- Change the Makefiles to build each driver as an object with the
"_linux" suffix (which is what Anbox expects)
- Change config symbol types to tristate
Gbp-Pq: Topic debian
Gbp-Pq: Name android-enable-building-ashmem-and-binder-as-modules.patch
Ben Hutchings [Tue, 26 Jun 2018 15:59:01 +0000 (16:59 +0100)]
Export symbols needed by Android drivers
We want to enable use of the Android ashmem and binder drivers to
support Anbox, but they should not be built-in as that would waste
resources and increase security attack surface on systems that don't
need them.
Export the currently un-exported symbols they depend on.
Gbp-Pq: Topic debian
Gbp-Pq: Name export-symbols-needed-by-android-drivers.patch
Create manpages and binaries including the version
[bwh: Fix version insertion in perf man page cross-references and perf
man page title. Install bash_completion script for perf with a
version-dependent name. And do the same for trace.]
Gbp-Pq: Topic debian
Gbp-Pq: Name tools-perf-version.patch
dann frazier [Mon, 26 Mar 2007 22:30:51 +0000 (16:30 -0600)]
Hardcode arch script output
Here's a patch that simply uses hardcoded definitions instead of
doing the dynamic tests that require architecture-specific scripts.
I don't particularly like this approach because it restricts
portability and diverts from upstream. But, it is simpler, and this
really needs to be fixed somehow before etch (along with a rebuild of
linux-modules-extra-2.6), so I'm willing to live with it if my other
patch is deemed unacceptable.
My primary concern is that, in the future, the output of these scripts
will change and we (or our successors) will either not notice or
forget to update the hardcoded values.
Including the scripts in linux-kbuild will avoid this manual step
altogether, and allow for the possibility of other archs to provide
their own scripts in the future.
Gbp-Pq: Topic debian
Gbp-Pq: Name ia64-hardcode-arch-script-output.patch
Ben Hutchings [Tue, 12 May 2015 18:29:22 +0000 (19:29 +0100)]
Make mkcompile_h accept an alternate timestamp string
We want to include the Debian version in the utsname::version string
instead of a full timestamp string. However, we still need to provide
a standard timestamp string for gen_initramfs_list.sh to make the
kernel image reproducible.
Make mkcompile_h use $KBUILD_BUILD_VERSION_TIMESTAMP in preference to
$KBUILD_BUILD_TIMESTAMP.
Gbp-Pq: Topic debian
Gbp-Pq: Name uname-version-timestamp.patch
Ben Hutchings [Sat, 2 Jun 2012 18:53:38 +0000 (19:53 +0100)]
video: Remove nvidiafb and rivafb
These drivers contain register programming code provided by the
hardware vendor that appears to have been deliberately obfuscated.
This is arguably not the preferred form for modification.
These drivers are also largely redundant with nouveau. The RIVA 128
(NV3) is not supported by nouveau but is about 15 years old and
probably discontinued 10 years ago.
Gbp-Pq: Topic debian/dfsg
Gbp-Pq: Name video-remove-nvidiafb-and-rivafb.patch
* New upstream stable update:
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.10
- ipv4: ipv6: netfilter: Adjust the frag mem limit when truesize changes
- ipv6: Check available headroom in ip6_xmit() even without options
- ipv6: sr: properly initialize flowi6 prior passing to ip6_route_output
- [arm64, hppa, powerpc, x86, alpha, armhf, mips*] net: 8139cp: fix a BUG
triggered by changing mtu with network traffic
- net: phy: don't allow __set_phy_supported to add unsupported modes
- net: Prevent invalid access to skb->prev in __qdisc_drop_all
- net: use skb_list_del_init() to remove from RX sublists
- Revert "net/ibm/emac: wrong bit is used for STA control"
- rtnetlink: ndo_dflt_fdb_dump() only work for ARPHRD_ETHER devices
- sctp: kfree_rcu asoc
- tcp: Do not underestimate rwnd_limited
- tcp: fix NULL ref in tail loss probe
- tun: forbid iface creation with rtnl ops
- virtio-net: keep vnet header zeroed after processing XDP
- net: phy: sfp: correct store of detected link modes
- sctp: update frag_point when stream_interleave is set
- net: restore call to netdev_queue_numa_node_write when resetting XPS
- net: fix XPS static_key accounting
- [armhf] OMAP2+: prm44xx: Fix section annotation on
omap44xx_prm_enable_io_wakeup
- [arm64, x86] staging: rtl8723bs: Fix the return value in case of error in
'rtw_wx_read32()'
- [armhf] dts: am3517: Fix pinmuxing for CD on MMC1
- [armhf] dts: LogicPD Torpedo: Fix mmc3_dat1 interrupt
- [armhf] dts: logicpd-somlv: Fix interrupt on mmc3_dat1
- [armhf] dts: am3517-som: Fix WL127x Wifi interrupt
- tools: bpftool: prevent infinite loop in get_fdinfo()
- [arm64] dts: sdm845-mtp: Reserve reserved gpios
- sysv: return 'err' instead of 0 in __sysv_write_inode
- netfilter: nf_tables: don't skip inactive chains during update
- perf tools: Fix crash on synthesizing the unit
- netfilter: xt_RATEEST: remove netns exit routine
- netfilter: nf_tables: fix use-after-free when deleting compat expressions
- [armhf] ASoC: rockchip: add missing slave_config setting for I2S
- s390/cpum_cf: Reject request for sampling in event initialization
- [arm64, armel, x86, armhf] ASoC: dapm: Recalculate audio map forcely when
card instantiated
- [armhf] spi: omap2-mcspi: Add missing suspend and resume calls
- bpf: allocate local storage buffers using GFP_ATOMIC
- aio: fix failure to put the file pointer
- netfilter: xt_hashlimit: fix a possible memory leak in htable_create()
- hwmon: (w83795) temp4_type has writable permission
- perf tools: Restore proper cwd on return from mnt namespace
- [armhf] PCI: imx6: Fix link training status detection in link up check
- objtool: Fix double-free in .cold detection error path
- objtool: Fix segfault in .cold detection with -ffunction-sections
- [arm64] phy: qcom-qusb2: Use HSTX_TRIM fused value as is
- [arm64] phy: qcom-qusb2: Fix HSTX_TRIM tuning with fused value for SDM845
- Btrfs: send, fix infinite loop due to directory rename dependencies
- RDMA/mlx5: Fix fence type for IB_WR_LOCAL_INV WR
- RDMA/core: Add GIDs while changing MAC addr only for registered ndev
- RDMA/rdmavt: Fix rvt_create_ah function signature
- tools: bpftool: fix potential NULL pointer dereference in do_load
- ipvs: call ip_vs_dst_notifier earlier than ipv6_dev_notf
- [x86] thunderbolt: Prevent root port runtime suspend during NVM upgrade
- [arm64] drm/meson: add support for 1080p25 mode
- netfilter: ipv6: Preserve link scope traffic original oif
- IB/mlx5: Fix page fault handling for MW
- netfilter: add missing error handling code for register functions
- [x86] KVM: VMX: Update shared MSRs to be saved/restored on MSR_EFER.LMA
changes
- [x86] kvm/vmx: fix old-style function declaration
- [arm64] net: thunderx: fix NULL pointer dereference in nic_remove
- netfilter: nf_tables: deactivate expressions in rule replecement routine
- ALSA: usb-audio: Add vendor and product name for Dell WD19 Dock
- cachefiles: Fix an assertion failure when trying to update a failed object
- fscache: Fix race in fscache_op_complete() due to split atomic_sub & read
- cachefiles: Fix page leak in cachefiles_read_backing_file while vmscan is
active
- igb: fix uninitialized variables
- ixgbe: recognize 1000BaseLX SFP modules as 1Gbps
- [arm64] net: hisilicon: remove unexpected free_netdev
- drm/amdgpu: Add delay after enable RLC ucode
- [arm64, powerpc, x86] drm/ast: fixed reading monitor EDID not stable issue
- Revert "xen/balloon: Mark unallocated host memory as UNUSABLE"
- afs: Fix validation/callback interaction
- fscache: fix race between enablement and dropping of object
- cachefiles: Explicitly cast enumerated type in put_object
- fscache, cachefiles: remove redundant variable 'cache'
- nvme: warn when finding multi-port subsystems without multipathing enabled
- ocfs2: fix deadlock caused by ocfs2_defrag_extent()
- mm/page_alloc.c: fix calculation of pgdat->nr_zones
- hfs: do not free node before using
- hfsplus: do not free node before using
- initramfs: clean old path before creating a hardlink
- ocfs2: fix potential use after free
- dax: Check page->mapping isn't NULL
- ALSA: hda/realtek - Fixed headphone issue for ALC700
- ALSA: hda/realtek: ALC294 mic and headset-mode fixups for ASUS X542UN
- ALSA: hda/realtek: Enable audio jacks of ASUS UX533FD with ALC294
- ALSA: hda/realtek: Enable audio jacks of ASUS UX433FN/UX333FA with ALC294
- ALSA: hda/realtek - Fix the mute LED regresion on Lenovo X1 Carbon
- IB/hfi1: Fix an out-of-bounds access in get_hw_stats
- bpf: fix off-by-one error in adjust_subprog_starts
- tcp: lack of available data can also cause TSO defer
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.11
- sched/pelt: Fix warning and clean up IRQ PELT config
- scsi: raid_attrs: fix unused variable warning
- [i386] staging: olpc_dcon: add a missing dependency
- [arm64] dts: qcom-apq8064-arrow-sd-600eval fix graph_endpoint warning
- [arm64] drm/msm: fix address space warning
- aio: fix spectre gadget in lookup_ioctx
- fs/iomap.c: get/put the page in iomap_page_create/release()
- userfaultfd: check VM_MAYWRITE was set after verifying the uffd is
registered
- [arm64] dma-mapping: Fix FORCE_CONTIGUOUS buffer clearing
- block/bio: Do not zero user pages
- ovl: fix decode of dir file handle with multi lower layers
- ovl: fix missing override creds in link of a metacopy upper
- [armhf] MMC: OMAP: fix broken MMC on OMAP15XX/OMAP5910/OMAP310
- mmc: core: use mrq->sbc when sending CMD23 for RPMB
- mmc: sdhci: fix the timeout check window for clock and reset
- fuse: continue to send FUSE_RELEASEDIR when FUSE_OPEN returns ENOSYS
- [arm] mmp/mmp2: fix cpu_is_mmp2() on mmp2-dt
- [arm] dts: bcm2837: Fix polarity of wifi reset GPIOs (Closes: #911443)
- dm thin: send event about thin-pool state change _after_ making it
- dm cache metadata: verify cache has blocks in
blocks_are_clean_separate_dirty()
- dm: call blk_queue_split() to impose device limits on bios
- tracing: Fix memory leak of instance function hash filters
- [powerpc*] msi: Fix NULL pointer access in teardown code
- drm/nouveau/kms: Fix memory leak in nv50_mstm_del()
- drm/nouveau/kms/nv50-: also flush fb writes when rewinding push buffer
- Revert "drm/rockchip: Allow driver to be shutdown on reboot/kexec"
- [x86] drm/i915/execlists: Apply a full mb before execution for Braswell
- [amd64] drm/amdkfd: add new vega10 pci ids
- drm/amdgpu: add some additional vega10 pci ids
- drm/amdgpu: update smu firmware images for VI variants (v2)
- drm/amdgpu: update SMC firmware image for polaris10 variants
- [x86] build: Fix compiler support check for CONFIG_RETPOLINE
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.12
- locking/qspinlock: Re-order code
- [x86] locking/qspinlock, x86: Provide liveness guarantee
- [amd64] IB/hfi1: Remove race conditions in user_sdma send path
- mac80211_hwsim: fix module init error paths for netlink
- [x86] Input: hyper-v - fix wakeup from suspend-to-idle
- scsi: libiscsi: Fix NULL pointer dereference in iscsi_eh_session_reset
- [x86] scsi: vmw_pscsi: Rearrange code to avoid multiple calls to
free_irq during unload
- [x86] earlyprintk/efi: Fix infinite loop on some screen widths
- [arm64] drm/msm: Fix task dump in gpu recovery
- [arm64] drm/msm/gpu: Fix a couple memory leaks in debugfs
- [arm64] drm/msm: fix handling of cmdstream offset
- [arm64] drm/msm/dsi: configure VCO rate for 10nm PLL driver
- [arm64] drm/msm: Grab a vblank reference when waiting for commit_done
- drm/ttm: fix LRU handling in ttm_buffer_object_transfer
- drm/amdgpu: wait for IB test on first device open
- [arm64,armhf] net: stmmac: Move debugfs init/exit to
->probe()/->remove()
- [amd64] net: aquantia: fix rx checksum offload bits
- bonding: fix 802.3ad state sent to partner when unbinding slave
- liquidio: read sc->iq_no before release sc
- nfs: don't dirty kernel pages read by direct-io
- SUNRPC: Fix a potential race in xprt_connect()
- [sparc64] sbus: char: add of_node_put()
- [sparc64] drivers/sbus/char: add of_node_put()
- [sparc64] drivers/tty: add missing of_node_put()
- [arm64] drm/msm/hdmi: Enable HPD after HDMI IRQ is set up
- [amr64] drm/msm: dpu: Don't set legacy plane->crtc pointer
- [arm64] drm/msm: dpu: Fix "WARNING: invalid free of devm_ allocated
data"
- [arm64] drm/msm: Fix error return checking
- [arm64] clk: mvebu: Off by one bugs in cp110_of_clk_get()
- Input: synaptics - enable SMBus for HP 15-ay000
- [armhf] Input: omap-keypad - fix keyboard debounce configuration
- libata: whitelist all SAMSUNG MZ7KM* solid-state disks
- macvlan: return correct error value
- [arm64,armhf] mv88e6060: disable hardware level MAC learning
- net/mlx4_en: Fix build break when CONFIG_INET is off
- bpf: check pending signals while verifying programs
- [arm*] 8814/1: mm: improve/fix ARM v7_dma_inv_range() unaligned address
handling
- [arm*] 8815/1: V7M: align v7m_dma_inv_range() with v7 counterpart
- [arm*] 8816/1: dma-mapping: fix potential uninitialized return
- [arm64,armhf] thermal: armada: fix legacy validity test sense
- [arm64,armhf] net: mvpp2: fix detection of 10G SFP modules
- [arm64,armhf] net: mvpp2: fix phylink handling of invalid PHY modes
- drm/amdgpu/vcn: Update vcn.cur_state during suspend
- [amd64,arm64] acpi/nfit: Fix user-initiated ARS to be "ARS-long" rather
than "ARS-short"
- drm/ast: Fix connector leak during driver unload
- cifs: In Kconfig CONFIG_CIFS_POSIX needs depends on legacy (insecure
cifs)
- vhost/vsock: fix reset orphans race with close timeout
- [x86] i2c: scmi: Fix probe error on devices with an empty SMB0001 ACPI
device node
- nvme: validate controller state before rescheduling keep alive
- nvmet-rdma: fix response use after free
- Btrfs: fix missing delayed iputs on unmount
[ Uwe Kleine-König ]
* [arm] Fix probing of 3rd gpio device on Armada 370.
[ Ben Hutchings ]
* linux-perf: Fix build-time check for unversioned files
* linux-perf: Fix installation directories for BPF headers and examples
(Closes: #916774)
[ Noah Meyerhans ]
* drivers/net/ethernet/amazon: Backport v2.0.2 from Linux 4.20
[ Bastian Blank ]
* Ignore various ABI changes.
[ Salvatore Bonaccorso ]
* iomap: Revert "fs/iomap.c: get/put the page in
iomap_page_create/release()"