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Wed, 21 Apr 2021 23:33:39 +0000 (GMT) From: "Namjae Jeon" To: =?UTF-8?Q?'Aur=C3=A9lien_Aptel'?= Cc: "'Steve French'" , "'CIFS'" , In-Reply-To: <875z0fzfui.fsf@suse.com> Subject: RE: ksmbd testing progress - buildbot run passed Date: Thu, 22 Apr 2021 08:33:39 +0900 Message-ID: <029501d73706$c1d85270$4588f750$@samsung.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQGqunUKZP0ukLCojsS1cfECHSQHtAK1BdCWAQCx5k+q+uXL4A== Content-Language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmphk+LIzCtJLcpLzFFi42LZdlhTTzd4W0OCwZutBhaNb0+zWLz4v4vZ 4uf/74wWb14cZnNg8dg56y67x+4Fn5k81m+5yuLxeZNcAEtUjk1GamJKapFCal5yfkpmXrqt kndwvHO8qZmBoa6hpYW5kkJeYm6qrZKLT4CuW2YO0EolhbLEnFKgUEBicbGSvp1NUX5pSapC Rn5xia1SakFKToGhQYFecWJucWleul5yfq6VoYGBkSlQZUJOxrll/SwF/6UrXk79wtzAOFu6 i5GTQ0LARKK34yxjFyMXh5DADkaJ7rl9zBDOJ0aJ9sfnoDKfGSUeLdnODNOyccoFdojELkaJ 5gWtUFUvGSXWvjrEAlLFJqAr8e/PfjYQW0TAXKJh0h92EJtZoFbi+pG9YDWcAmoSuzacAbOF BSwl3i/sYwKxWQRUJXZ3rwazeYHiR1/+hbIFJU7OfMICMUdbYtnC11AXKUj8fLqMFWKXk8Tu A2uhdolIzO5sA/tHQuAru8TqrTeYIBpcJDau/AFlC0u8Or6FHcKWknjZ3wZkcwDZ1RIf90PN 72CUePHdFsI2lri5fgMrSAmzgKbE+l36EGFFiZ2/5zJCrOWTePe1hxViCq9ER5sQRImqRN+l w1BLpSW62j+wT2BUmoXksVlIHpuF5IFZCMsWMLKsYhRLLSjOTU8tNiwwQY7sTYzg5KhlsYNx 7tsPeocYmTgYDzFKcDArifCuLW5IEOJNSaysSi3Kjy8qzUktPsRoCgzqicxSosn5wPScVxJv aGpkbGxsYWJmbmZqrCTOm+5cnSAkkJ5YkpqdmlqQWgTTx8TBKdXAZLxL0uy8xILcSft3tp7V 2/lT1Gma26FzPBZ+kWesguUOKxitvBl9/sC9+uM8FY3rIp2Dbgqut3bjS3FsOsin/fvSRcFn HN8YMu5tWXhx57tsq/4tSrGffHcXRy+sOR3bKHfLI1JJ7X93jpbVArXATdnnd25btHrnsdnB 9q82dh59cPC62kJLTuFoFwmtwoQrXuUmfRuDm8OFw1cZ5ahkfdm2pyjoZtyOW86xE4J2TIlT nrv4VwLje6PFRkEn24IaFiz98yHzkcPtLbvy1bOqVYLrnlZ5OOf3Xa7WiLJui3f/3qhlcFn+ vb/SZKHgm7fzGCYVh7Jq1S67ZP6epVeLpUp/79NvP1N5ou2eCoorsRRnJBpqMRcVJwIA7LTb bBcEAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrPLMWRmVeSWpSXmKPExsWy7bCSvG7wtoYEg6/fWC0a355msXjxfxez xc//3xkt3rw4zObA4rFz1l12j90LPjN5rN9ylcXj8ya5AJYoLpuU1JzMstQifbsEroxl29pY Cp4IV/w8uJK5gfERfxcjJ4eEgInExikX2LsYuTiEBHYwSvzaO58NIiEtcezEGeYuRg4gW1ji 8OFiiJrnjBI3r39iBalhE9CV+PdnP1i9iIC5RMOkP+wgNrNAvcTmo60sEA17GCV+zjnFDJLg FFCT2LXhDAuILSxgKfF+YR8TiM0ioCqxu3s1mM0LFD/68i+ULShxcuYTFoih2hK9D1sZYexl C18zQxyqIPHz6TJWiCOcJHYfWAt1hIjE7M425gmMwrOQjJqFZNQsJKNmIWlZwMiyilEytaA4 Nz232LDAKC+1XK84Mbe4NC9dLzk/dxMjOE60tHYw7ln1Qe8QIxMH4yFGCQ5mJRHetcUNCUK8 KYmVValF+fFFpTmpxYcYpTlYlMR5L3SdjBcSSE8sSc1OTS1ILYLJMnFwSjUwVbPpzc/N9L9+ aGH8Y68/3F93/l4gmn79vKvdhAmnPtexLvrE5K+SarPA10Rw4qa5haGCOzW2SKtf2bZ6QfdR I6YLkgsWrHpkPX1hcUO3ZRefxryfl2Rvmisuvf42s2Zz4B2ubwsmnVbm8XdKv/r3e9vUyV9/ VZmJf/Ksj1kiGNr2UvvTj3rO1SkxJakGu1QuHfu8z7Tp0Zl2ueLfvHZFbxz8fho/vlQt+ire LjfovODCm5c6luT5i304/ujTpFWfN4iKhkqzhAg/7U+7sFqJj9t7R8Imme6/Crl1X2/cvMM1 XePMVJGC2TOyZ5r8CHnvXSZecVfVbZXCd6WOlenpJsr9H2yuNojF/2xbknD1uxJLcUaioRZz UXEiACtYjb0CAwAA X-CMS-MailID: 20210421233339epcas1p4c5ff7618a579d5ed91641745816310c9 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: SVC_REQ_APPROVE CMS-TYPE: 101P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20210421175112epcas1p388a4e7425658c33eb511d6c491ca6a21 References: <875z0fzfui.fsf@suse.com> Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org >=20 > Hi, Hi Aur=C3=A9lien,=0D=0A=0D=0A>=20=0D=0A>=20I=20have=20started=20a=20small= =20project=20to=20test=20ksmbd=20by=20fuzzing.=0D=0AReally=20great=20work= =21,=20We=20can=20add=20this=20to=20buildbot=20test=20of=20ksmbd.=0D=0A=0D= =0A>=20=0D=0A>=20It's=20based=20on=20an=20existing=20project=20called=20Fuz= zotron=20and=20it's=20not=20finished=20yet.=20I=20have=20taken=20code=20fro= m=0D=0A>=20libsmb2=20and=20other=20places=20to=20setup=20a=20valid=20connec= tion=20(negprot,=20sess=20setup,=20tcon)=20before=20the=20fuzzing=0D=0A>=20= starts.=20The=20code=20is=20very=20messy,=20not=20clean=20at=20all=20(all= =20SMB2=20logic=20is=20in=20callback.c)=0D=0A>=20=0D=0A>=20https://protect2= .fireeye.com/v1/url?k=3Dd034d6f7-8fafefb8-d0355db8-0cc47a30d446-=0D=0A>=20a= 31c437df7256da6&q=3D1&e=3D2ad65418-4da5-4fd7-85e8-=0D=0A>=2061c1b0dea5c7&u= =3Dhttps%3A%2F%2Fgithub.com%2Faaptel%2Ffuzzotron=0D=0A>=20=0D=0A>=20I=20hav= en't=20had=20time=20to=20finish=20it,=20TCON=20creation=20fails=20with=20AC= CESS_DENIED,=20I=20haven't=20figured=20out=20why=0D=0A>=20yet=20:(=0D=0AOka= y,=20I=20will=20join=20this=20project=20after=20ksmbd=20upstream=20is=20com= pleted.=0D=0A=0D=0A>=20=0D=0A>=20Maybe=20there's=20a=20better=20project=20t= o=20fuzz=20network=20servers,=20I've=20just=20used=20fuzzotron=20because=20= the=20code=0D=0A>=20looked=20simple=20enough.=20The=20callback.c=20has=20al= l=20the=20required=20code=20so=20it=20should=20be=20relatively=20easy=20to= =20move=0D=0A>=20to=20another=20fuzzer.=0D=0ALet=20me=20check=20it.=0D=0A>= =20=0D=0A>=20I=20think=20it=20would=20be=20very=20useful=20to=20run=20this= =20on=20ksmbd,=20because:=0D=0A>=20=0D=0A>=20-=20the=20stakes=20of=20securi= ty=20issues=20in=20that=20code=20are=20very=20high.=0D=0A>=20-=20it=20would= =20make=20people=20trust=20ksmbd=20code=20a=20lot=20more=20if=20it=20passes= =20this.=0D=0AAgreed.=0D=0A=0D=0A>=20=0D=0A>=20Quick=20how=20to=20if=20you= =20want=20to=20give=20it=20a=20try:=0D=0A>=20*=20get=20radamsa=20https://gi= tlab.com/akihe/radamsa=20and=20compile=20it,=20put=20it=20in=20=24PATH=0D= =0A>=20*=20make=20a=20test=20folder=20to=20be=20used=20for=20test=20input= =20samples=20(valid=20SMB2=20packets)=0D=0A>=20-=20dd=20if=3D/dev/urandom= =20of=3Dtest/sample1=20bs=3D1K=20count=3D1=20(simple=20invalid=20test)=0D= =0A>=20*=20make=20a=20script=20to=20test=20if=20server=20crashed,=20for=20e= xample:=0D=0A>=20-=20echo=20'ping=20-c1=20192.168.2.110'=20>=20check.sh=0D= =0A>=20*=20run=0D=0A>=20./fuzzotron=20--radamsa=20--directory=20=24PWD/test= =20-h=20192.168.2.110=20-p=20445=20-P=20tcp=20-z=20=22=24PWD/check.sh=22=20= -o=0D=0A>=20output=0D=0A>=20=0D=0A>=20Unfortunately=20it=20fails=20because= =20of=20bad=20TCON=20creation=20right=20now,=20as=20I=20said=20earlier...= =20I=20need=20to=20find=0D=0A>=20some=20time=20to=20find=20the=20issue.=0D= =0AOkay,=20We=20are=20focusing=20on=20ksmbd=20upstream=20now,=20Only=20if= =20it=20is=20completed,=20We=20will=20be=20able=20to=20work=20together.=0D= =0AAnd=20It=20is=20really=20necessary=20for=20ksmbd=20and=20thank=20you=20f= or=20sharing=20your=20work=21=0D=0A=0D=0A>=20=0D=0A>=20Cheers,=0D=0A>=20--= =0D=0A>=20Aur=C3=A9lien=20Aptel=20/=20SUSE=20Labs=20Samba=20Team=0D=0A>=20G= PG:=201839=20CB5F=209F5B=20FB9B=20AA97=20=208C99=2003C8=20A49B=20521B=20D5D= 3=20SUSE=20Software=20Solutions=20Germany=20GmbH,=0D=0A>=20Maxfeldstr.=205,= =2090409=20N=C3=BCrnberg,=20DE=0D=0A>=20GF:=20Felix=20Imend=C3=B6rffer,=20M= ary=20Higgins,=20Sri=20Rasiah=20HRB=20247165=20(AG=20M=C3=BCnchen)=0D=0A=0D= =0A=0D=0A