From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Thu, 4 Apr 2013 17:07:57 +0400 From: "Dmitry V. Levin" To: ALT Linux Team development discussions Message-ID: <20130404130757.GB12318@altlinux.org> Mail-Followup-To: ALT Linux Team development discussions References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="oLBj+sq0vYjzfsbl" Content-Disposition: inline In-Reply-To: X-fingerprint: FE4C 93AB E19A 2E4C CB5D 3E4E 7CAB E6AC 9E35 361E Subject: Re: [devel] firebird x86 error will always overflow destination buffer HELP! X-BeenThere: devel@lists.altlinux.org X-Mailman-Version: 2.1.12 Precedence: list Reply-To: ALT Linux Team development discussions List-Id: ALT Linux Team development discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Apr 2013 13:07:57 -0000 Archived-At: List-Archive: List-Post: --oLBj+sq0vYjzfsbl Content-Type: text/plain; charset=koi8-r Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Apr 04, 2013 at 03:07:28PM +0400, Aleksey Novodvorsky wrote: > =F4=C1=CB =CB=C1=CB =C2=C1=C7=C1 =D4=CF=CC=D8=CB=CF =CE=C1 i586, =D4=CF, = =D7=CF=DA=CD=CF=D6=CE=CF, =D3=D4=CF=C9=D4 =D5=CD=C5=CE=D8=DB=C9=D4=D8 =C9= =CC=C9 =D3=CE=D1=D4=D8 =CF=D0=D4=C9=CD=C9=DA=C1=C3=C9=C0 > Rgrds, =E1=CC=C5=CB=D3=C5=CA =EF=DE=C5=CE=D8 =CD=C9=CC=CF. =EF=D4=CB=CC=C0=DE=C5=CE=C9=C5 _FORTIFY_SOUR= CE - =DC=D4=CF =CE=C5 =CF=D4=CB=CC=C0=DE=C5=CE=C9=C5 =CF=DB=C9=C2=CB=C9, =C1 =D7=D3=C5=C7=CF =CC=C9=DB=D8 =CF=D4=CB=CC=C0=DE=C5=CE=C9=C5 =D0=D2=CF=D7=C5= =D2=CB=C9 =CF=DB=C9=C2=CB=C9. =EF=DB=C9=C2=CB=C1 =D0=D2=C9 =DC=D4=CF=CD = =CE=C9=CB=D5=C4=C1 =CE=C5 =C4=C5=CE=C5=D4=D3=D1. =E6=D2=C1=DA=C1 "will always overflow destination buffer" =CF=DA=CE=C1=DE= =C1=C5=D4, =DE=D4=CF, =D0=CF =CD=CE=C5=CE=C9=C0 gcc, =C5=D3=CC=C9 =C9=D3=D0=CF=CC=CE=C5=CE=C9=C5 =CB=CF=C4=C1 =C4=CF=CA=C4= =C5=D4 =C4=CF =D5=CB=C1=DA=C1=CE=CE=CF=CA =D4=CF=DE=CB=C9, =D4=CF destinati= on buffer overflow =D0=D2=CF=C9=DA=CF=CA=C4=C5=D4 =CE=C1=D7=C5=D2=CE=D1=CB=C1. > 4 =C1=D0=D2=C5=CC=D1 2013 =C7., 15:01 =D0=CF=CC=D8=DA=CF=D7=C1=D4=C5=CC= =D8 Boris Savelev > =CE=C1=D0=C9=D3=C1=CC: > > =D0=CF=D4=CF=D2=CF=D0=C9=CC=D3=D1 =D1. =CF=DB=C9=C2=CB=C1 =D7=D3=A3 =D2= =C1=D7=CE=CF. =D4=CF=CC=D8=CB=CF =D4=C5=D0=C5=D2=D8 =CE=C1 memcpy ( > > > > 4 =C1=D0=D2=C5=CC=D1 2013 =C7., 14:04 =D0=CF=CC=D8=DA=CF=D7=C1=D4=C5=CC= =D8 Boris Savelev > > =CE=C1=D0=C9=D3=C1=CC: > >> =CB=CF=CD=D0=C9=CC=C9=D2=D5=C5=D4=D3=D1... =D3=D0=C1=D3=C9=C2=CF) > >> > >> 4 =C1=D0=D2=C5=CC=D1 2013 =C7., 11:42 =D0=CF=CC=D8=DA=CF=D7=C1=D4=C5= =CC=D8 Damir Shayhutdinov > >> =CE=C1=D0=C9=D3=C1=CC: > >>> =F7 =CB=CF=C4=C5 =D0=CF=C8=CF=D6=C5 =C5=D3=D4=D8 =CF=DB=C9=C2=CB=C1. > >>> > >>> =ED=CF=D6=CE=CF =D7=CF=D4 =D4=C1=CB =D0=CF=C4=D0=D2=C1=D7=C9=D4=D8: > >>> > >>> 1115 if (p1 <= q && > >>> ((d =3D *p1++) =3D=3D '_' || d =3D=3D '$')) > >>> 1116 > >>> strncpy(q1 - 4, "isc", 3); > >>> 1117 else > >>> 1118 = *q1++ =3D > >>> d; > >>> > >>> =DA=C1=CD=C5=CE=C9=D4=D8 =CE=C1 > >>> > >>> if (p1 < q) > >>> { > >>> if ((d =3D *p1++) =3D=3D '_' || d =3D=3D '$') > >>> memcpy(q1 - 4, "isc", 3); > >>> else > >>> *q1++ =3D d; > >>> } > >>> > >>> =F0=D2=C1=D7=C4=C1 =D1 =CE=C5 =D5=D7=C5=D2=C5=CE, =DE=D4=CF =D0=D2=C9= =DC=D4=CF=CD =D0=D2=CF=C2=CC=C5=CD=C1 =CE=C5 =C9=D3=DE=C5=DA=CE=C5=D4. =E5= =D3=CC=C9 =CE=C5 =C9=D3=DE=C5=DA=CE=C5=D4, > >>> =CD=CF=D6=CE=CF =C5=DD=C5 =D7 =D3=D4=D2=CF=DE=CB=C5 1073 =D5=D7=C5=CC= =C9=DE=C9=D4=D8 =D2=C1=DA=CD=C5=D2 line =D3 256 =C4=CF 260. > >>> > >>> > >>> 2013/4/4 Boris Savelev > >>>> > >>>> =F0=D2=C9=D7=C5=D4! > >>>> =F0=CF=CD=CF=C7=C9=D4=C5 =CD=CE=C5, =D0=CF=D6=C1=CC=D5=CA=D3=D4=C1, = =D3=CF=C2=D2=C1=D4=D8 firebird. > >>>> =EF=DB=C9=C2=CB=C1: > >>>> In function 'char* strncpy(char*, const char*, size_t)', > >>>> inlined from 'void gen_blr(void*, SSHORT, const char*)' at > >>>> ../src/gpre/c_cxx.cpp:1116:34: > >>>> /usr/include/bits/string3.h:120:71: error: call to char* > >>>> __builtin___strncpy_chk(char*, const char*, unsigned int, unsigned > >>>> int) will always overflow destination buffer > >>>> > >>>> =EC=CF=C7: > >>>> http://git.altlinux.org/tasks/93764/build/100/i586/log > >>>> > >>>> =EB=CF=C4: > >>>> > >>>> http://git.altlinux.org/people/boris/packages/?p=3Dfirebird.git;a=3D= blob;f=3DFirebird/src/gpre/c_cxx.cpp;h=3D806bcac4ed69b8d0963c69c16f6b2c9fbd= 6b7852;hb=3DHEAD#l1116 --=20 ldv --oLBj+sq0vYjzfsbl Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAlFdeywACgkQfKvmrJ41Nh7HYgCbBPpbz6/4ciBfQ79C0WlZa8xP OPwAnRaTe6Tsu9WRCqCafHfrwdqlwhnC =3K/1 -----END PGP SIGNATURE----- --oLBj+sq0vYjzfsbl--