LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Masami Hiramatsu <mhiramat@kernel.org>
To: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Cc: Ingo Molnar <mingo@redhat.com>, "H . Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org, Masami Hiramatsu <mhiramat@kernel.org>,
	Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
	Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>,
	"David S . Miller" <davem@davemloft.net>,
	Jon Medhurst <tixy@linaro.org>, Will Deacon <will.deacon@arm.com>,
	Arnd Bergmann <arnd@arndb.de>,
	David Howells <dhowells@redhat.com>,
	Heiko Carstens <heiko.carstens@de.ibm.com>,
	"Tobin C . Harding" <me@tobin.cc>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Thomas Richter <tmricht@linux.ibm.com>,
	akpm@linux-foundation.org, acme@kernel.org, rostedt@goodmis.org,
	brueckner@linux.vnet.ibm.com, schwidefsky@de.ibm.com,
	stable@vger.kernel.org
Subject: [PATCH v4 0/7] kprobes: Fix %p in kprobes
Date: Sat, 28 Apr 2018 21:34:30 +0900	[thread overview]
Message-ID: <152491886943.9916.18051658590418236184.stgit@devbox> (raw)

Hi,

This 4th version of the series which fixes %p uses in kprobes.
Some by replacing with %pS, some by replacing with %px but
masking with kallsyms_show_value().

I've read the thread about %pK and if I understand correctly
we shouldn't print kernel addresses. However, kprobes debugfs
interface can not stop to show the actual probe address because
it should be compared with addresses in kallsyms for debugging.
So, it depends on that kallsyms_show_value() allows to show
address to user, because if it returns true, anyway that user
can dump /proc/kallsyms.
Other error messages are replaced it with %pS or just removed.

This series also including fixes for arch ports too.

Changes in this version;
  [1/7] Fix "list" file's mode too.
  [2/7] Do not use local variables and fix comment.
  [4/7] Use WARN_ONCE() for single bug.
  [5/7] Just remove %p.

Thank you,

---

Masami Hiramatsu (7):
      kprobes: Make list and blacklist root user read only
      kprobes: Show blacklist addresses as same as kallsyms does
      kprobes: Show address of kprobes if kallsyms does
      kprobes: Replace %p with other pointer types
      kprobes/x86: Fix %p uses in error messages
      kprobes/arm: Fix %p uses in error messages
      kprobes/arm64: Fix %p uses in error messages


 arch/arm/probes/kprobes/core.c      |   10 +++----
 arch/arm/probes/kprobes/test-core.c |    1 -
 arch/arm64/kernel/probes/kprobes.c  |    4 +--
 arch/x86/kernel/kprobes/core.c      |   13 +++------
 kernel/kprobes.c                    |   52 +++++++++++++++++++++--------------
 5 files changed, 42 insertions(+), 38 deletions(-)

--
Masami Hiramatsu (Linaro) <mhiramat@kernel.org>

             reply	other threads:[~2018-04-28 12:34 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-28 12:34 Masami Hiramatsu [this message]
2018-04-28 12:35 ` [PATCH v4 1/7] kprobes: Make list and blacklist root user read only Masami Hiramatsu
2018-04-28 12:35 ` [PATCH v4 2/7] kprobes: Show blacklist addresses as same as kallsyms does Masami Hiramatsu
2018-04-28 12:36 ` [PATCH v4 3/7] kprobes: Show address of kprobes if " Masami Hiramatsu
2018-04-28 12:36 ` [PATCH v4 4/7] kprobes: Replace %p with other pointer types Masami Hiramatsu
2018-04-28 12:37 ` [PATCH v4 5/7] kprobes/x86: Fix %p uses in error messages Masami Hiramatsu
2018-04-28 12:37 ` [PATCH v4 6/7] kprobes/arm: " Masami Hiramatsu
2018-04-28 12:38 ` [PATCH v4 7/7] kprobes/arm64: " Masami Hiramatsu

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=152491886943.9916.18051658590418236184.stgit@devbox \
    --to=mhiramat@kernel.org \
    --cc=acme@kernel.org \
    --cc=akpm@linux-foundation.org \
    --cc=ananth@in.ibm.com \
    --cc=anil.s.keshavamurthy@intel.com \
    --cc=arnd@arndb.de \
    --cc=brueckner@linux.vnet.ibm.com \
    --cc=davem@davemloft.net \
    --cc=dhowells@redhat.com \
    --cc=heiko.carstens@de.ibm.com \
    --cc=hpa@zytor.com \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=me@tobin.cc \
    --cc=mingo@redhat.com \
    --cc=rostedt@goodmis.org \
    --cc=schwidefsky@de.ibm.com \
    --cc=stable@vger.kernel.org \
    --cc=tixy@linaro.org \
    --cc=tmricht@linux.ibm.com \
    --cc=torvalds@linux-foundation.org \
    --cc=will.deacon@arm.com \
    --cc=x86@kernel.org \
    --subject='Re: [PATCH v4 0/7] kprobes: Fix %p in kprobes' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
on how to clone and mirror all data and code used for this inbox