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Qinglin Pan ff0f6becf3 riscv: mm: add missing memcpy in kasan_init 
[ Upstream commit 9f2ac64d6c ]

Hi Atish,

It seems that the panic is due to the missing memcpy during kasan_init.
Could you please check whether this patch is helpful?

When doing kasan_populate, the new allocated base_pud/base_p4d should
contain kasan_early_shadow_{pud, p4d}'s content. Add the missing memcpy
to avoid page fault when read/write kasan shadow region.

Tested on:
 - qemu with sv57 and CONFIG_KASAN on.
 - qemu with sv48 and CONFIG_KASAN on.

Signed-off-by: Qinglin Pan <panqinglin2020@iscas.ac.cn>
Tested-by: Atish Patra <atishp@rivosinc.com>
Fixes: 8fbdccd2b1 ("riscv: mm: Support kasan for sv57")
Link: https://lore.kernel.org/r/20221009083050.3814850-1-panqinglin2020@iscas.ac.cn
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-04 00:00:34 +09:00
arch riscv: mm: add missing memcpy in kasan_init 2022-11-04 00:00:34 +09:00
block blk-mq: fix null pointer dereference in blk_mq_clear_rq_mapping() 2022-10-29 10:08:33 +02:00
certs certs: make system keyring depend on built-in x509 parser 2022-09-24 04:31:18 +09:00
crypto crypto: akcipher - default implementation for setting a private key 2022-10-21 12:38:59 +02:00
Documentation Revert "dt-bindings: pinctrl-zynqmp: Add output-enable configuration" 2022-11-04 00:00:24 +09:00
drivers net: enetc: survive memory pressure without crashing 2022-11-04 00:00:34 +09:00
fs erofs: fix up inplace decompression success rate 2022-11-04 00:00:27 +09:00
include net/mlx5: Fix possible use-after-free in async command interface 2022-11-04 00:00:34 +09:00
init arm64 fixes for -rc3 2022-08-26 11:32:53 -07:00
io_uring io_uring: don't gate task_work run on TIF_NOTIFY_SIGNAL 2022-10-29 10:08:35 +02:00
ipc ipc: mqueue: fix possible memory leak in init_mqueue_fs() 2022-10-21 12:38:55 +02:00
kernel PM: hibernate: Allow hybrid sleep to work with s2idle 2022-11-04 00:00:31 +09:00
lib lib/Kconfig.debug: Add check for non-constant .{s,u}leb128 support to DWARF5 2022-10-21 12:39:29 +02:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm mm: prep_compound_tail() clear page->private 2022-11-04 00:00:23 +09:00
net kcm: do not sense pfmemalloc status in kcm_sendpage() 2022-11-04 00:00:34 +09:00
samples Tracing updates for 5.20 / 6.0 2022-08-05 09:41:12 -07:00
scripts kbuild: rpm-pkg: fix breakage when V=1 is used 2022-10-21 12:39:01 +02:00
security selinux: enable use of both GFP_KERNEL and GFP_ATOMIC in convert_context() 2022-10-29 10:08:29 +02:00
sound ALSA: aoa: Fix I2S device accounting 2022-11-04 00:00:33 +09:00
tools perf vendor events arm64: Fix incorrect Hisi hip08 L3 metrics 2022-11-04 00:00:32 +09:00
usr Not a lot of material this cycle. Many singleton patches against various 2022-05-27 11:22:03 -07:00
virt kvm: Add support for arch compat vm ioctls 2022-10-29 10:08:30 +02:00
.clang-format PCI/DOE: Add DOE mailbox support functions 2022-07-19 15:38:04 -07:00
.cocciconfig
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore kbuild: split the second line of *.mod into *.usyms 2022-05-08 03:16:59 +09:00
.mailmap Qualcomm ARM64 DTS fixes for 6.0 2022-09-23 16:44:37 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS drm for 5.20/6.0 2022-08-03 19:52:08 -07:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS One MAINTAINERS update, two MM fixes, both cc:stable 2022-10-01 09:13:29 -07:00
Makefile Linux 6.0.6 2022-10-29 10:08:36 +02:00
README

README 

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

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

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.