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Re: raise(-1) succeeds for programs linked against libpthread
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From: |
Ludovic Courtès |
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Subject: |
Re: raise(-1) succeeds for programs linked against libpthread |
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Date: |
Tue, 13 Oct 2020 22:41:04 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) |
Samuel Thibault <samuel.thibault@gnu.org> skribis:
> Ludovic Courtès, le mar. 13 oct. 2020 15:41:37 +0200, a ecrit:
>> ‘pthread_kill’ passes the signal number to ‘_hurd_raise_signal’, which
>> assumes it is valid:
> [...]
>> I suppose that before calling ‘sigaddset’, it should check whether SIGNO
>> is within bounds, along the lines of:
>>
>> if (signo < 2 || signo >= _NSIG)
>> return EINVAL;
>>
>> Does that make sense?
>
> Probably, yes. Why excluding SIGHUP?
Oops, an oversight: I was looking at ‘signum-generic.h’ and the first
definition is SIGINT (2). :-)
Ludo’.