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Pu Lehui 30a59cc797 riscv, bpf: Fix possible infinite tailcall when CONFIG_CFI_CLANG is enabled 
When CONFIG_CFI_CLANG is enabled, the number of prologue instructions
skipped by tailcall needs to include the kcfi instruction, otherwise the
TCC will be initialized every tailcall is called, which may result in
infinite tailcalls.

Fixes: e63985ecd2 ("bpf, riscv64/cfi: Support kCFI + BPF on riscv64")
Signed-off-by: Pu Lehui <pulehui@huawei.com>
Acked-by: Björn Töpel <bjorn@kernel.org>
Link: https://lore.kernel.org/r/20241008124544.171161-1-pulehui@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
History 2024-10-09 18:23:06 -07:00
arch riscv, bpf: Fix possible infinite tailcall when CONFIG_CFI_CLANG is enabled 2024-10-09 18:23:06 -07:00
block vfs-6.12.blocksize 2024-09-20 17:53:17 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto KEYS: prevent NULL pointer dereference in find_asymmetric_key() 2024-09-20 19:49:49 +03:00
Documentation NFS Client Updates for Linux 6.12 2024-09-24 15:44:18 -07:00
drivers Kbuild updates for v6.12 2024-09-24 13:02:06 -07:00
fs NFS Client Updates for Linux 6.12 2024-09-24 15:44:18 -07:00
include bpf: Make sure internal and UAPI bpf_redirect flags don't overlap 2024-10-01 21:40:12 +02:00
init sched_ext: Initial pull request for v6.12 2024-09-21 09:44:57 -07:00
io_uring for-6.12/io_uring-20240922 2024-09-24 11:11:38 -07:00
ipc struct fd layout change (and conversion to accessor helpers) 2024-09-23 09:35:36 -07:00
kernel bpf: fix unpopulated name_len field in perf_event link info 2024-10-09 18:17:16 -07:00
lib Kbuild updates for v6.12 2024-09-24 13:02:06 -07:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm lsm/stable-6.12 PR 20240923 2024-09-24 10:18:15 -07:00
net bpf: Make sure internal and UAPI bpf_redirect flags don't overlap 2024-10-01 21:40:12 +02:00
rust Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-09-05 20:37:20 -07:00
samples Landlock updates for v6.12-rc1 2024-09-24 10:40:11 -07:00
scripts Kbuild updates for v6.12 2024-09-24 13:02:06 -07:00
security bpf-next-6.12-struct-fd 2024-09-24 14:54:26 -07:00
sound firewire updates for v6.12 2024-09-23 12:55:27 -07:00
tools selftests/bpf: fix perf_event link info name_len assertion 2024-10-09 18:17:16 -07:00
usr initramfs: shorten cmd_initfs in usr/Makefile 2024-07-16 01:07:52 +09:00
virt struct fd layout change (and conversion to accessor helpers) 2024-09-23 09:35:36 -07:00
.clang-format Docs: Move clang-format from process/ to dev-tools/ 2024-06-26 16:36:00 -06:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Kbuild updates for v6.12 2024-09-24 13:02:06 -07:00
.mailmap Summary 2024-09-24 11:08:40 -07:00
.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: Mark powerpc spufs as orphaned 2024-08-19 21:27:56 +10:00
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 Description for this pull request: 2024-09-24 15:26:04 -07:00
Makefile Kbuild updates for v6.12 2024-09-24 13:02:06 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

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 reStructuredText 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.