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Linus Torvalds 3fdacf402b tracing: Fix the histogram logic from possibly crashing the kernel
Working on the histogram code, I found that if you dereference a char
 pointer in a trace event that happens to point to user space, it can crash
 the kernel, as it does no checks of that pointer. I have code coming that
 will do this better, so just remove this ability to treat character
 pointers in trace events as stings in the histogram.
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Merge tag 'trace-v5.14-5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fix from Steven Rostedt:
 "Fix the histogram logic from possibly crashing the kernel

  Working on the histogram code, I found that if you dereference a char
  pointer in a trace event that happens to point to user space, it can
  crash the kernel, as it does no checks of that pointer. I have code
  coming that will do this better, so just remove this ability to treat
  character pointers in trace events as stings in the histogram"

* tag 'trace-v5.14-5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Do not reference char * as a string in histograms
2021-07-17 12:36:51 -07:00
Documentation Devicetree fixes for v5.14, take 1: 2021-07-16 19:08:09 -07:00
LICENSES
arch arm64 fixes for -rc2 2021-07-16 19:00:53 -07:00
block
certs
crypto
drivers block-5.14-2021-07-16 2021-07-16 12:31:44 -07:00
fs io_uring-5.14-2021-07-16 2021-07-16 12:27:33 -07:00
include fallthrough fixes for Clang for 5.14-rc2 2021-07-15 13:57:31 -07:00
init
ipc
kernel tracing: Fix the histogram logic from possibly crashing the kernel 2021-07-17 12:36:51 -07:00
lib
mm
net
samples
scripts
security
sound
tools
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Revert "Makefile: Enable -Wimplicit-fallthrough for Clang" 2021-07-15 18:05:31 -07:00
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.