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Sun, 05 Sep 2021 13:04:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=u7MTmHe0EZ9aA9LzZAxZXm6GQj3ww9LG3NsEE4FMIzE=; b=jEm7HULXf0RNVM9RP/dQRNI/eELhIs7g8jIO3NqWM0d8TE2kvId/qk6iG0XPySDfLl zJUI1lkN/xTM/R0SyIIIKYFzK9KQ38yfhaEdDkYyLw9tlqAlsJJN2dEMQGcXio7cviPs HHIJPWxEfxLtXE7oIE3Ou9SKSsAbTQXk6320/072kWIKqhdiCdi/qEm1MUyTCurvPEBB UuwJx4DnzDrXaFsEloz23gut7pnDNaHXE2qmy1fx8bmN5xIAAAwOCdZSnvTdgppRabro ug5R6C/DG4JKAN51/glT5/U1xRI0d4qrnt249eQsgT1wZ/BdOeYxDRJXDBhSsG5fT9XB Tj2g== X-Gm-Message-State: AOAM532E5DbZ1nDyXksFUK/TbpURPn4O9k5CgfgCPDzCEcTCdjkGfAJN kG87S4okMQds8d7TP4tecyZAv3q7LoLP0U4lUDOTp4zvof5y X-Google-Smtp-Source: ABdhPJw8uxsAVTc7y/O2Nho+1GgIvGWLtmslQzKpOBn86Tsfrhp/WIPdMKxCklB4s2cNvBUTeZJMFKunrHzUglETpZQX+qZo7Qz/ MIME-Version: 1.0 X-Received: by 2002:a6b:7b4b:: with SMTP id m11mr7043393iop.165.1630872246693; Sun, 05 Sep 2021 13:04:06 -0700 (PDT) Date: Sun, 05 Sep 2021 13:04:06 -0700 In-Reply-To: <0000000000002c756105cb201ef1@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f032a605cb450801@google.com> Subject: Re: [syzbot] WARNING: kmalloc bug in bpf_check From: syzbot To: akpm@linux-foundation.org, andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, clang-built-linux@googlegroups.com, daniel@iogearbox.net, davem@davemloft.net, eric.dumazet@gmail.com, hawk@kernel.org, john.fastabend@gmail.com, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, nathan@kernel.org, ndesaulniers@google.com, netdev@vger.kernel.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.org, w@1wt.eu, yhs@fb.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 44C9D7001A24 Authentication-Results: imf02.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=appspotmail.com (policy=none); spf=pass (imf02.hostedemail.com: domain of 3tiI1YQkbAN8TZaLBMMFSBQQJE.HPPHMFVTFSDPOUFOU.DPN@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com designates 209.85.166.198 as permitted sender) smtp.mailfrom=3tiI1YQkbAN8TZaLBMMFSBQQJE.HPPHMFVTFSDPOUFOU.DPN@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com X-Rspamd-Server: rspam01 X-Stat-Signature: wf1k9rwrpdp1uqq5geo6cjz9heb9s756 X-HE-Tag: 1630872247-582927 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: syzbot has bisected this issue to: commit 7661809d493b426e979f39ab512e3adf41fbcc69 Author: Linus Torvalds Date: Wed Jul 14 16:45:49 2021 +0000 mm: don't allow oversized kvmalloc() calls bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13136b83300000 start commit: a9c9a6f741cd Merge tag 'scsi-misc' of git://git.kernel.org.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=10936b83300000 console output: https://syzkaller.appspot.com/x/log.txt?x=17136b83300000 kernel config: https://syzkaller.appspot.com/x/.config?x=c84ed2c3f57ace dashboard link: https://syzkaller.appspot.com/bug?extid=f3e749d4c662818ae439 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11e4cdf5300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14ef3b33300000 Reported-by: syzbot+f3e749d4c662818ae439@syzkaller.appspotmail.com Fixes: 7661809d493b ("mm: don't allow oversized kvmalloc() calls") For information about bisection process see: https://goo.gl/tpsmEJ#bisection