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Kumar Kartikeya Dwivedi dbd8d22863 bpf: Wrap register invalidation with a helper 
Typically, verifier should use env->allow_ptr_leaks when invaliding
registers for users that don't have CAP_PERFMON or CAP_SYS_ADMIN to
avoid leaking the pointer value. This is similar in spirit to
c67cae551f ("bpf: Tighten ptr_to_btf_id checks."). In a lot of the
existing checks, we know the capabilities are present, hence we don't do
the check.

Instead of being inconsistent in the application of the check, wrap the
action of invalidating a register into a helper named 'mark_invalid_reg'
and use it in a uniform fashion to replace open coded invalidation
operations, so that the check is always made regardless of the call site
and we don't have to remember whether it needs to be done or not for
each case.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20230221200646.2500777-7-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 		2023-02-22 12:50:34 -08:00
Documentation Networking changes for 6.3. 2023-02-21 18:24:12 -08:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
arch Networking changes for 6.3. 2023-02-21 18:24:12 -08:00
block Updates for the interrupt subsystem: 2023-02-21 10:03:48 -08:00
certs certs: don't try to update blacklist keys 2023-02-13 10:11:20 +02:00
crypto Networking changes for 6.3. 2023-02-21 18:24:12 -08:00
drivers Networking changes for 6.3. 2023-02-21 18:24:12 -08:00
fs Networking changes for 6.3. 2023-02-21 18:24:12 -08:00
include Networking changes for 6.3. 2023-02-21 18:24:12 -08:00
init Networking changes for 6.3. 2023-02-21 18:24:12 -08:00
io_uring for-6.3/block-2023-02-16 2023-02-20 14:27:21 -08:00
ipc fs: port ->permission() to pass mnt_idmap 2023-01-19 09:24:28 +01:00
kernel bpf: Wrap register invalidation with a helper 2023-02-22 12:50:34 -08:00
lib Networking changes for 6.3. 2023-02-21 18:24:12 -08:00
mm Networking changes for 6.3. 2023-02-21 18:24:12 -08:00
net Networking changes for 6.3. 2023-02-21 18:24:12 -08:00
rust Rust changes for v6.3 2023-02-20 10:40:42 -08:00
samples samples/bpf: Use bpf_{btf,link,map,prog}_get_info_by_fd() 2023-02-16 15:32:45 -08:00
scripts Networking changes for 6.3. 2023-02-21 18:24:12 -08:00
security This update includes the following changes: 2023-02-21 18:10:50 -08:00
sound ARM: unused boardfile removal for 6.3 2023-02-20 15:28:57 -08:00
tools selftests/bpf: Tests for uninitialized stack reads 2023-02-22 12:34:50 -08:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt VFIO fixes for v6.2-rc6 2023-01-23 11:56:07 -08:00
.clang-format iommufd for 6.2 2022-12-14 09:15:43 -08:00
.cocciconfig
…
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes
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.gitignore .gitignore: ignore *.rpm 2022-12-30 17:22:14 +09:00
.mailmap 12 hotfixes, mostly against mm/. Five of these fixes are cc:stable. 2023-02-13 14:09:20 -08:00
.rustfmt.toml rust: add `.rustfmt.toml` 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: update SCTP maintainers 2023-02-02 11:35:33 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS Networking changes for 6.3. 2023-02-21 18:24:12 -08:00
Makefile Rust changes for v6.3 2023-02-20 10:40:42 -08:00
README
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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.