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bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fa
From: |
Eli Zaretskii |
Subject: |
bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault |
Date: |
Tue, 18 Jun 2019 20:44:41 +0300 |
> Date: Wed, 19 Jun 2019 00:23:20 +0800
> From: xuchunyang <mail@xuchunyang.me>
> Cc: 36279@debbugs.gnu.org, Noam Postavsky <npostavs@gmail.com>
>
> It fixes the issue for me too. (process-attributes 123456) returns nil
> instead of crashing Emacs.
>
> >
> > diff --git a/src/sysdep.c b/src/sysdep.c
> > index 1e35e06b63..518ecebcf6 100644
> > --- a/src/sysdep.c
> > +++ b/src/sysdep.c
> > @@ -3798,7 +3798,7 @@ system_process_attributes (Lisp_Object pid)
> > CONS_TO_INTEGER (pid, int, proc_id);
> > mib[3] = proc_id;
> >
> > - if (sysctl (mib, 4, &proc, &proclen, NULL, 0) != 0)
> > + if (sysctl (mib, 4, &proc, &proclen, NULL, 0) != 0 || proclen == 0)
> > return attrs;
> >
> > uid = proc.kp_eproc.e_ucred.cr_uid;
> >
Thanks. Robert, please push to the emacs-26 branch.
(I understand this problem is quite old, is that right?)
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault, Xu Chunyang, 2019/06/18
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault, Noam Postavsky, 2019/06/18
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault, xuchunyang, 2019/06/18
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault, Robert Pluim, 2019/06/18
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault, xuchunyang, 2019/06/18
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault,
Eli Zaretskii <=
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault, Robert Pluim, 2019/06/18
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault, Eli Zaretskii, 2019/06/18
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault, Robert Pluim, 2019/06/18
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault, Robert Pluim, 2019/06/19
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault, Andreas Schwab, 2019/06/19
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault, Robert Pluim, 2019/06/19
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault, Andreas Schwab, 2019/06/19
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault, Robert Pluim, 2019/06/19
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault, Eli Zaretskii, 2019/06/19
- bug#36279: 26.2.90; (process-attributes nonexistent-pid) segmentation fault, Robert Pluim, 2019/06/20