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Filename Latest commit message Latest commit date
Nicholas Piggin 52396500f9 powerpc/64s: Fix i-side SLB miss bad address handler saving nonvolatile GPRs
The SLB bad address handler's trap number fixup does not preserve the
low bit that indicates nonvolatile GPRs have not been saved. This
leads save_nvgprs to skip saving them, and subsequent functions and
return from interrupt will think they are saved.

This causes kernel branch-to-garbage debugging to not have correct
registers, can also cause userspace to have its registers clobbered
after a segfault.

Fixes: f0f558b131 ("powerpc/mm: Preserve CFAR value on SLB miss caused by access to bogus address")
Cc: stable@vger.kernel.org # v4.9+
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-03-26 07:40:17 +11:00
arch powerpc/64s: Fix i-side SLB miss bad address handler saving nonvolatile GPRs 2018-03-26 07:40:17 +11:00
block
certs
crypto
Documentation ocxl: Document the OCXL_IOCTL_GET_METADATA IOCTL 2018-03-02 13:02:15 +11:00
drivers ocxl: Add get_metadata IOCTL to share OCXL information to userspace 2018-03-02 13:02:14 +11:00
firmware
fs for-4.16-rc1-tag 2018-02-16 09:26:18 -08:00
include ocxl: Add get_metadata IOCTL to share OCXL information to userspace 2018-03-02 13:02:14 +11:00
init
ipc
kernel Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-02-18 12:38:40 -08:00
lib
LICENSES
mm mm: hide a #warning for COMPILE_TEST 2018-02-16 09:41:36 -08:00
net virtio: bugfixes 2018-02-15 14:29:27 -08:00
samples
scripts
security
sound
tools selftests/powerpc: Skip the subpage_prot tests if the syscall is unavailable 2018-03-02 11:37:04 +11:00
usr
virt
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
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Makefile Linux 4.16-rc2 2018-02-18 17:29:42 -08:00
README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.