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Thu, 14 Apr 2022 16:41:57 -0700 (PDT) Message-ID: <04a0c48d-e81f-264a-b467-4a5b3ffc4f9c@opensource.wdc.com> Date: Fri, 15 Apr 2022 08:41:56 +0900 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: [PATCH v2] binfmt_flat: do not stop relocating GOT entries prematurely on riscv Content-Language: en-US To: Kees Cook , Niklas Cassel , Konstantin Ryabitsev Cc: Alexander Viro , Eric Biederman , Paul Walmsley , Palmer Dabbelt , Albert Ou , Greg Ungerer , Mike Frysinger , stable@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org References: <20220414091018.896737-1-niklas.cassel@wdc.com> <202204141624.6689D6B@keescook> From: Damien Le Moal Organization: Western Digital Research In-Reply-To: <202204141624.6689D6B@keescook> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Authentication-Results: imf17.hostedemail.com; dkim=pass header.d=wdc.com header.s=dkim.wdc.com header.b=kVvxsa7g; dkim=pass header.d=opensource.wdc.com header.s=dkim header.b=G8u3sp4M; dmarc=pass (policy=quarantine) header.from=opensource.wdc.com; spf=pass (imf17.hostedemail.com: domain of "prvs=0964214f5=damien.lemoal@opensource.wdc.com" designates 216.71.153.144 as permitted sender) smtp.mailfrom="prvs=0964214f5=damien.lemoal@opensource.wdc.com" X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 1263840002 X-Stat-Signature: fsf6yj76bgaw43tab38pzbrktxcyr98a X-HE-Tag: 1649979722-949117 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000082, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 4/15/22 08:27, Kees Cook wrote: > On Thu, Apr 14, 2022 at 11:10:18AM +0200, Niklas Cassel wrote: >> bFLT binaries are usually created using elf2flt. >> [...] >=20 > Hm, something in the chain broke DKIM, but I can't see what: >=20 > =E2=9C=97 [PATCH v2] binfmt_flat: do not stop relocating GOT entries = prematurely on riscv > =E2=9C=97 BADSIG: DKIM/wdc.com Hu... WDC emails are not spams :) No clue what is going on here. I can check with our IT if they changed something though. >=20 > Konstantin, do you have a process for debugging these? I don't see the > "normal" stuff that breaks DKIM (i.e. a trailing mailing list footer, e= tc) >=20 --=20 Damien Le Moal Western Digital Research