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Date:      Thu, 12 Nov 2020 19:05:19 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   =?UTF-8?B?W0J1ZyAyNTEwODFdIEdyZXAgQ3Jhc2hlcyB3aXRoIGJvdGggwqst?= =?UTF-8?B?LWFmdGVyLWNvbnRleHTCuyDCqy0tbWF4LWNvdW50wrsgU3dpdGNoZXMgYXJl?= =?UTF-8?B?IFVzZWQ=?=
Message-ID:  <bug-251081-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D251081

            Bug ID: 251081
           Summary: Grep Crashes with both =C2=AB--after-context=C2=BB =C2=
=AB--max-count=C2=BB
                    Switches are Used
           Product: Base System
           Version: 12.2-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: bin
          Assignee: bugs@FreeBSD.org
          Reporter: CrazyMihey@Ya.Ru

Created attachment 219606
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D219606&action=
=3Dedit
Grep Memory Dump 12.2 x64

FreeBSD Grep Utility Crushes in a case of simultaneously specifying two
Switches: =C2=AB--after-context=3DNUM=C2=BB (-A NUM) and =C2=AB--max-count=
=3DNUM=C2=BB (-m NUM). This
happens when Russian Language (for Example) is Used.
The Example to ReProduce this Error (EveryOne can Try, if Brave enough):
# id -c
russian
#grep --after-context=3D"10" --max-count=3D"2" "" "/etc/passwd"
# $FreeBSD: releng/12.2/etc/master.passwd 359447 2020-03-30 17:07:05Z brook=
s $
#
Segmentation fault (=D1=81=D1=82=D0=B5=D0=BA =D0=BF=D0=B0=D0=BC=D1=8F=D1=82=
=D0=B8 =D1=81=D0=B1=D1=80=D0=BE=D1=88=D0=B5=D0=BD =D0=BD=D0=B0 =D0=B4=D0=B8=
=D1=81=D0=BA)

or, without specifying the =C2=ABRussian=C2=BB LogIn Class (ReProduced on a=
ny System):
# env LANG=3D"ru_RU.UTF-8" grep --after-context=3D"10" --max-count=3D"2" ""
"/etc/passwd" || printf "Error Number: %u (0x%.2X).\n" "${?}" "${?}"
# $FreeBSD: releng/12.2/etc/master.passwd 359447 2020-03-30 17:07:05Z brook=
s $
#
Segmentation fault (=D1=81=D1=82=D0=B5=D0=BA =D0=BF=D0=B0=D0=BC=D1=8F=D1=82=
=D0=B8 =D1=81=D0=B1=D1=80=D0=BE=D1=88=D0=B5=D0=BD =D0=BD=D0=B0 =D0=B4=D0=B8=
=D1=81=D0=BA)
Error Number: 139 (0x8B).       # Looks like 0x80 + 0x0B: =C2=ABSIGSEGV=C2=
=BB.

shows the same Result. =C2=ABegrep=C2=BB does the same.
# grep --version
grep (GNU grep) 2.5.1-FreeBSD
This Issue was found with these Systems:
 =E2=97=8F FreeBSD 11.2-RELEASE #0 r335510: Fri Jun 22 04:32:14 UTC 2018 GE=
NERIC amd64
 =E2=97=8F FreeBSD 12.1-RELEASE-p2 r358570 CrazyBook i386
 =E2=97=8F FreeBSD 12.2-RELEASE r366954 GENERIC i386
 =E2=97=8F FreeBSD 12.2-RELEASE r366954 GENERIC amd64
This is not a Critical Error, but IMHO, Developers should Know about It.
Thank You and Sorry, if It is not Important.

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