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(p200300cbc704100021d5831de107fbd6.dip0.t-ipconnect.de. [2003:cb:c704:1000:21d5:831d:e107:fbd6]) by smtp.gmail.com with ESMTPSA id t15-20020a1c770f000000b003da286f8332sm8390138wmi.18.2023.01.16.05.24.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 16 Jan 2023 05:24:34 -0800 (PST) Message-ID: <6f5ac7ee-0af3-a466-cf7f-b17270bc1391@redhat.com> Date: Mon, 16 Jan 2023 14:24:33 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0 Subject: Re: [PATCH mm] mm: hugetlb: Add checks for NULL for vma returned from find_vma. find_vma may return NULL, that's why its return value is usually checked for NULL. To: Esina Ekaterina , Mike Kravetz Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, lvc-project@linuxtesting.org References: <20230116100520.71277-1-eesina@astralinux.ru> From: David Hildenbrand Organization: Red Hat In-Reply-To: <20230116100520.71277-1-eesina@astralinux.ru> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Stat-Signature: gso1rjtryk4gibab6b6jxo65czxa1fy1 X-Rspam-User: X-Rspamd-Queue-Id: 38487A0006 X-Rspamd-Server: rspam06 X-HE-Tag: 1673875478-339202 X-HE-Meta: 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 jTi35MWM +DmxNUA8HGgRalqQLi8O2Y6wCI+JNpwoFUbcP7M9m0Yz0pj/ELiMqayb+AS1qhkexGtv8sw4M20gs/H1i15/t1cRZEukgmJ8EtQRi8yhB9DQF2jJThSkDQHoyakSWMCRFje2dgo94pc4QiifQyru3z0vw94K00B12WRpGEzIoVUJEBhZL25m/uHXQml84v07SfdKH X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 16.01.23 11:05, Esina Ekaterina wrote: > Found by Astra Linux on behalf of Linux Verification Center > (linuxtesting.org) with SVACE. Please trim the subject and move details to the description. What are the symptoms? How exactly does this BUG manifest? What is this patch fixing? -- Thanks, David / dhildenb