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[209.85.218.52]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a9a9157366fsm123042466b.181.2024.10.20.13.32.12 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 20 Oct 2024 13:32:12 -0700 (PDT) Received: by mail-ej1-f52.google.com with SMTP id a640c23a62f3a-a9a0c40849cso592401066b.3 for ; Sun, 20 Oct 2024 13:32:12 -0700 (PDT) X-Forwarded-Encrypted: i=1; AJvYcCWkqU6oK/jRajDOsG6Pl23s25M+lRLXwjwxSXHwHhh036Z3skSKwyaEE9yR44UtR0SheI9WDnj1/A==@kvack.org X-Received: by 2002:a17:907:728c:b0:a9a:6855:1820 with SMTP id a640c23a62f3a-a9a69a7616cmr1110187966b.15.1729456332287; Sun, 20 Oct 2024 13:32:12 -0700 (PDT) MIME-Version: 1.0 References: <000000000000ade4f305fc36868f@google.com> <671547f4.050a0220.1e4b4d.0049.GAE@google.com> In-Reply-To: <671547f4.050a0220.1e4b4d.0049.GAE@google.com> From: Linus Torvalds Date: Sun, 20 Oct 2024 13:31:56 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [syzbot] [usb] kernel BUG in __page_table_check_zero To: syzbot Cc: akpm@linux-foundation.org, jannh@google.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-usb@vger.kernel.org, pasha.tatashin@soleen.com, syzkaller-bugs@googlegroups.com, yuran.pereira@hotmail.com Content-Type: text/plain; charset="UTF-8" X-Stat-Signature: cn9jn9byo1po16noy6ijtu91fnf7b58o X-Rspamd-Queue-Id: 017DBA001B X-Rspam-User: X-Rspamd-Server: rspam10 X-HE-Tag: 1729456320-133996 X-HE-Meta: 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 zGsRat8g 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.002439, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: #syz fix: mm: avoid leaving partial pfn mappings around in error case Because even if I wasn't aware of the syzbot report, it does look like a match for what the commit was meant to fix (and may have been the source of Jann's report). Linus On Sun, 20 Oct 2024 at 11:12, syzbot wrote: > > If the result looks correct, please mark the issue as fixed by replying with: > > #syz fix: mm: avoid leaving partial pfn mappings around in error case