mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-09 10:09:11 +00:00
Code Issues Releases Wiki Activity
No description
970133 commits 105 branches 5107 tags 5.6 GiB
C 97.6%
Assembly 1%
Shell 0.5%
Python 0.3%
Makefile 0.3%
Find a file
Jiri Olsa 7c7b2b5605 bpf: Prevent double bpf_prog_put call from bpf_tracing_prog_attach 
[ Upstream commit 5541075a34 ]

The bpf_tracing_prog_attach error path calls bpf_prog_put
on prog, which causes refcount underflow when it's called
from link_create function.

  link_create
    prog = bpf_prog_get              <-- get
    ...
    tracing_bpf_link_attach(prog..
      bpf_tracing_prog_attach(prog..
        out_put_prog:
          bpf_prog_put(prog);        <-- put

    if (ret < 0)
      bpf_prog_put(prog);            <-- put

Removing bpf_prog_put call from bpf_tracing_prog_attach
and making sure its callers call it instead.

Fixes: 4a1e7c0c63 ("bpf: Support attaching freplace programs to multiple attach points")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210111191650.1241578-1-jolsa@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-27 11:55:07 +01:00
arch x86/xen: fix 'nopvspin' build error 2021-01-27 11:55:04 +01:00
block
certs
crypto
Documentation
drivers crypto: omap-sham - Fix link error without crypto-engine 2021-01-27 11:55:06 +01:00
fs btrfs: print the actual offset in btrfs_root_name 2021-01-27 11:55:06 +01:00
include
init
ipc
kernel bpf: Prevent double bpf_prog_put call from bpf_tracing_prog_attach 2021-01-27 11:55:07 +01:00
lib
LICENSES
mm
net
samples
scripts
security
sound
tools libperf tests: Fail when failing to get a tracepoint id 2021-01-27 11:55:04 +01:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile
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.