From: Kyle Huey <me@kylehuey.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Kees Cook <keescook@chromium.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrea Righi <andrea.righi@canonical.com>,
Shuah Khan <shuah@kernel.org>,
Alexei Starovoitov <ast@kernel.org>,
Andy Lutomirski <luto@amacapital.net>,
Will Drewry <wad@chromium.org>,
"open list:KERNEL SELFTEST FRAMEWORK"
<linux-kselftest@vger.kernel.org>, bpf <bpf@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>,
linux-hardening@vger.kernel.org,
"Robert O'Callahan" <rocallahan@gmail.com>
Subject: Re: [REGRESSION] 5.16rc1: SA_IMMUTABLE breaks debuggers
Date: Fri, 19 Nov 2021 08:07:36 -0800 [thread overview]
Message-ID: <CAP045Aq06LV_jbXVc85bYU62h5EoVQ=rD9pDn+nGaUJ+iWe62w@mail.gmail.com> (raw)
In-Reply-To: <875ysp1m39.fsf@email.froward.int.ebiederm.org>
On Thu, Nov 18, 2021 at 8:12 AM Eric W. Biederman <ebiederm@xmission.com> wrote:
> Kyle thank you for your explanation of what breaks. For future kernels
> I do need to do some work in this area and I will copy on the patches
> going forward. In particular I strongly suspect that changing the
> sigaction and blocked state of the signal for these synchronous signals
> is the wrong thing to do, especially if the process is not killed. I
> want to find another solution that does not break things but that also
> does not change the program state behind the programs back so things
> work differently under the debugger.
The heads up in the future is appreciated, thanks.
- Kyle
next prev parent reply other threads:[~2021-11-19 16:07 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-17 18:47 [REGRESSION] 5.16rc1: SA_IMMUTABLE breaks debuggers Kyle Huey
2021-11-17 18:51 ` Kees Cook
2021-11-17 19:05 ` Kyle Huey
2021-11-17 19:09 ` Kyle Huey
2021-11-17 21:04 ` Eric W. Biederman
2021-11-17 21:54 ` Kees Cook
2021-11-17 23:24 ` Linus Torvalds
2021-11-18 0:05 ` Kees Cook
2021-11-18 0:15 ` Linus Torvalds
2021-11-18 0:37 ` Kyle Huey
2021-11-18 1:11 ` Linus Torvalds
2021-11-18 1:20 ` Kyle Huey
2021-11-18 1:32 ` Kees Cook
2021-11-18 16:10 ` Eric W. Biederman
2021-11-19 16:07 ` Kyle Huey [this message]
2021-11-19 16:35 ` Kees Cook
2021-11-19 16:58 ` Kyle Huey
2021-11-18 21:58 ` [PATCH 0/2] SA_IMMUTABLE fixes Eric W. Biederman
2021-11-18 22:04 ` [PATCH 1/2] signal: Don't always set SA_IMMUTABLE for forced signals Eric W. Biederman
2021-11-18 23:52 ` Kees Cook
2021-11-18 23:54 ` Kees Cook
2021-11-19 15:08 ` Eric W. Biederman
2021-11-19 1:13 ` Kyle Huey
2021-11-19 15:03 ` Eric W. Biederman
2021-11-18 22:05 ` [PATCH 2/2] signal: Replace force_fatal_sig with force_exit_sig when in doubt Eric W. Biederman
2021-11-18 23:53 ` Kees Cook
2021-11-19 1:12 ` [PATCH 0/2] SA_IMMUTABLE fixes Kyle Huey
2021-11-19 15:41 ` [GIT PULL] SA_IMMUTABLE fixes for v5.16-rc2 Eric W. Biederman
2021-11-19 19:46 ` pr-tracker-bot
2021-11-17 22:29 ` [REGRESSION] 5.16rc1: SA_IMMUTABLE breaks debuggers Kyle Huey
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