linux-hardening - Re: [PATCH 1/2] signal: Don't always set SA

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Date:   Fri, 19 Nov 2021 09:08:39 -0600
From:   ebiederm@...ssion.com (Eric W. Biederman)
To:     Kees Cook <keescook@...omium.org>
Cc:     linux-kernel@...r.kernel.org, Kyle Huey <me@...ehuey.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrea Righi <andrea.righi@...onical.com>,
        Shuah Khan <shuah@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Andy Lutomirski <luto@...capital.net>,
        Will Drewry <wad@...omium.org>,
        "open list\:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>, bpf <bpf@...r.kernel.org>,
        linux-hardening@...r.kernel.org,
        Robert O'Callahan <rocallahan@...il.com>,
        Oliver Sang <oliver.sang@...el.com>, lkp@...ts.01.org,
        lkp@...el.com
Subject: Re: [PATCH 1/2] signal: Don't always set SA_IMMUTABLE for forced signals

Kees Cook <keescook@...omium.org> writes:

> On Thu, Nov 18, 2021 at 04:04:58PM -0600, Eric W. Biederman wrote:
>> diff --git a/kernel/signal.c b/kernel/signal.c
>> index 7c4b7ae714d4..02058c983bd6 100644
>> --- a/kernel/signal.c
>> +++ b/kernel/signal.c
>> @@ -1298,6 +1298,12 @@ int do_send_sig_info(int sig, struct kernel_siginfo *info, struct task_struct *p
>>  	return ret;
>>  }
>>  
>> +enum sig_handler {
>> +	HANDLER_CURRENT, /* If reachable use the current handler */
>> +	HANDLER_SIG_DFL, /* Always use SIG_DFL handler semantics */
>> +	HANDLER_EXIT,	 /* Only visible as the proces exit code */
>
> Oh, I just noticed this typo "proces" -> "process"

Fixed.  Thank you.

Eric