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[173.228.88.115]) by smtp.gmail.com with ESMTPSA id o67sm16832118pga.55.2019.04.02.09.17.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 02 Apr 2019 09:17:18 -0700 (PDT) Date: Tue, 2 Apr 2019 09:17:10 -0700 From: Nikitas Angelinas To: Mukesh Ojha , Andrew Morton Cc: kernel test robot , Alexey Dobriyan , LKP , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Linux Memory Management List Subject: Re: b050de0f98 ("fs/binfmt_elf.c: free PT_INTERP filename ASAP"): BUG: KASAN: null-ptr-deref in allow_write_access Message-ID: <20190402161710.GA4152@vostro> References: <5ca377a6.5zcN4o4WezY4tfcr%lkp@intel.com> <86f16af9-961f-5057-6596-c95c0316f7da@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <86f16af9-961f-5057-6596-c95c0316f7da@codeaurora.org> User-Agent: Mutt/1.7.0 (2016-08-17) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Apr 02, 2019 at 08:53:42PM +0530, Mukesh Ojha wrote: > I think, this may fix the problem. > > https://patchwork.kernel.org/patch/10878501/ > > > Thanks, > Mukesh > > On 4/2/2019 8:24 PM, kernel test robot wrote: > > Greetings, > > > > 0day kernel testing robot got the below dmesg and the first bad commit is > > > > https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > > > > commit b050de0f986606011986698de504c0dbc12c40dc > > Author: Alexey Dobriyan > > AuthorDate: Fri Mar 29 10:02:05 2019 +1100 > > Commit: Stephen Rothwell > > CommitDate: Sat Mar 30 16:09:51 2019 +1100 > > > > fs/binfmt_elf.c: free PT_INTERP filename ASAP > > There is no reason for PT_INTERP filename to linger till the end of > > the whole loading process. > > Link: http://lkml.kernel.org/r/20190314204953.GD18143@avx2 > > Signed-off-by: Alexey Dobriyan > > Reviewed-by: Andrew Morton > > Signed-off-by: Andrew Morton > > Signed-off-by: Stephen Rothwell > > > > 46238614d8 fs/binfmt_elf.c: make scope of "pos" variable smaller > > b050de0f98 fs/binfmt_elf.c: free PT_INTERP filename ASAP > > 05d08e2995 Add linux-next specific files for 20190402 > > > > --- > > 0-DAY kernel test infrastructure Open Source Technology Center > > https://lists.01.org/pipermail/lkp Intel Corporation > Hi, Yes, it should. Andrew seems to have added the patch to the -mm tree. P.S. Apologies to individual recipients for the double-posting. I am resending this as the previous mail was rejected from linux-kernel and linux-fsdevel due to HTML content. Cheers, Nikitas