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Kees Cook c3607ed7ed LoadPin: Ignore the "contents" argument of the LSM hooks 
[ Upstream commit 1a17e5b513 ]

LoadPin only enforces the read-only origin of kernel file reads. Whether
or not it was a partial read isn't important. Remove the overly
conservative checks so that things like partial firmware reads will
succeed (i.e. reading a firmware header).

Fixes: 2039bda1fa ("LSM: Add "contents" flag to kernel_read_file hook")
Cc: Paul Moore <paul@paul-moore.com>
Cc: James Morris <jmorris@namei.org>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Cc: linux-security-module@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Serge Hallyn <serge@hallyn.com>
Tested-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://lore.kernel.org/r/20221209195453.never.494-kees@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-14 10:16:22 +01:00
arch x86/hyperv: Remove unregister syscore call from Hyper-V cleanup 2023-01-14 10:16:13 +01:00
block blk-mq: fix possible memleak when register 'hctx' failed 2023-01-14 10:16:19 +01:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:13:17 +02:00
crypto crypto: tcrypt - Fix multibuffer skcipher speed test mem leak 2023-01-14 10:15:50 +01:00
Documentation ASoC: dt-bindings: wcd9335: fix reset line polarity in example 2023-01-14 10:15:33 +01:00
drivers hwmon: (jc42) Fix missing unlock on error in jc42_write() 2023-01-14 10:16:20 +01:00
fs orangefs: Fix kmemleak in orangefs_{kernel,client}_debug_init() 2023-01-14 10:16:20 +01:00
include ALSA: hda: add snd_hdac_stop_streams() helper 2023-01-14 10:16:20 +01:00
init init/Kconfig: fix CC_HAS_ASM_GOTO_TIED_OUTPUT test with dash 2022-12-02 17:40:03 +01:00
io_uring io_uring: pass in EPOLL_URING_WAKE for eventfd signaling and wakeups 2023-01-04 11:39:24 +01:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:24:00 +01:00
kernel bpf: Prevent decl_tag from being referenced in func_proto arg 2023-01-14 10:16:18 +01:00
lib net: switch to storing KCOV handle directly in sk_buff 2023-01-14 10:16:10 +01:00
LICENSES
mm mm/hugetlb: fix races when looking up a CONT-PTE/PMD size hugetlb page 2022-12-14 11:31:59 +01:00
net ethtool: avoiding integer overflow in ethtool_phys_id() 2023-01-14 10:16:18 +01:00
samples samples: vfio-mdev: Fix missing pci_disable_device() in mdpy_fb_probe() 2023-01-14 10:16:01 +01:00
scripts scripts/faddr2line: Fix regression in name resolution on ppc64le 2022-12-08 11:23:54 +01:00
security LoadPin: Ignore the "contents" argument of the LSM hooks 2023-01-14 10:16:22 +01:00
sound ASoC: rt5670: Remove unbalanced pm_runtime_put() 2023-01-14 10:16:21 +01:00
tools libbpf: Avoid enum forward-declarations in public API in C++ mode 2023-01-14 10:16:19 +01:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-02-01 17:25:48 +01:00
virt kvm: Add support for arch compat vm ioctls 2022-10-30 09:41:15 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore kbuild: generate Module.symvers only when vmlinux exists 2021-05-19 10:12:59 +02:00
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS futex: Move to kernel/futex/ 2023-01-14 10:15:20 +01:00
Makefile kbuild: refactor single builds of *.ko 2023-01-14 10:16:07 +01:00
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.