From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0875B14A9F for ; Sun, 24 Mar 2024 08:37:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711269424; cv=none; b=HP/NxiMS/E83zcKpg4/BGf/dgBFh2h24NzVo369HxEWnBwYz60u8Z4lUZbK2hDWLu6QHZKptP3pzId9MMW9SNypY/RlqxAJxYe4ert8XhqCOyxovBPJWXpFfoIKLx854kIHXRH+1BVXQxmmmf1pLrTjTmqfaqarXR2NR2mWeyxs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711269424; c=relaxed/simple; bh=14tYmPQEs3CyHiGchvoFwUfgmSdjXsja0blVcdmRCBw=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=QWkW4w2u6Gw0wVKKCR2zTeipWldsm6utIkM5bYzyfAyO+DNZLwcy7KRmRReGEuEGVhN/v9Fr5w7UVNjVyLxKYqDW0+l57iGPR97u2IJFI8ms6Izb/SkGkPtT0l17C2ia0VKgvDCghSlOzusjmZSnhAzbzWftFtXFo6SiRZ0HozI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f72.google.com with SMTP id ca18e2360f4ac-7d0330ce3d4so194401439f.1 for ; Sun, 24 Mar 2024 01:37:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711269422; x=1711874222; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=vHc+uNAqG9Tf2XkO9MeTOtdp6u8g7/un/HgEhAdVl8E=; b=WonAR317hBhOqBDsUCkWGYbc/1MT1OtpAXyB5RVLYYsAebCdpvRzKi/CiP9ISJgWZp lTLiGH5mVwAYx2/6FZBNQhupIfMr8ncbQvTBSAlLUfKFaLRLOnSswccpjBi9yQwiHO3g JLTq6sMAm82f5sm1UURrXYkjhHq0aZZ2bsR8fPP0UJWPsVIC9HIEqPWqOugg0CKJjp7K jAB2ykvslE/nRPEIVIlQxz0nOnRp+qxsbk1sioTtijzOw8h85E1fTB/uyQnZ5RvvfLZl kdKRllAn0F/ZOpG1VGQC557YU7d0oyNwO8o2XwXNqYS4v3vW2GPT/CU8bSIxTpF7pnaQ AZcA== X-Forwarded-Encrypted: i=1; AJvYcCVu41DTENSkNAO4+/5h2u74F5OLuNEz9HYDpEiYQkOgW21Y8wO69vscRaZf7cATDeujTnVILLs/oaHX/iRiXs8MjnyMKaKw X-Gm-Message-State: AOJu0Yxrl7PNUb5dgqPRKJsI9OoFH+ush0BfQZWOE1UOtqY/taXw/bQX KxAEZyANFo+CRoyP6Ri5yHB8ka32oYQMLC7ObD/L9qNliQymz6a8jNS7kQhIE3k37dKOMzyOpiD 1pbgBhKGAVElV5m1xU65L9R96Er+q0nwC/mnW4YI4v+kEegONRbNi/Rs= X-Google-Smtp-Source: AGHT+IFS5mwHGgQBIEGBw1W4MY+ckTv6PfgXdkx4mzY4libLgoQiChHN4YGf1+hVLBjB3Jvx9K+U+q4SkRzhqg6qe1socyn3uzBq Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:348b:b0:47b:fd8e:c03 with SMTP id t11-20020a056638348b00b0047bfd8e0c03mr206118jal.1.1711269422262; Sun, 24 Mar 2024 01:37:02 -0700 (PDT) Date: Sun, 24 Mar 2024 01:37:02 -0700 In-Reply-To: <0000000000007628d60614449e5d@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000077c22061463f6f5@google.com> Subject: Re: [syzbot] [bpf?] general protection fault in bpf_check (2) From: syzbot To: andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, eddyz87@gmail.com, haoluo@google.com, john.fastabend@gmail.com, jolsa@kernel.org, kpsingh@kernel.org, linux-kernel@vger.kernel.org, martin.lau@linux.dev, netdev@vger.kernel.org, olsajiri@gmail.com, sdf@google.com, song@kernel.org, syzkaller-bugs@googlegroups.com, yonghong.song@linux.dev Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 6082b6c328b5486da2b356eae94b8b83c98b5565 Author: Alexei Starovoitov Date: Fri Mar 8 01:08:03 2024 +0000 bpf: Recognize addr_space_cast instruction in the verifier. bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=101f5ac9180000 start commit: ddb2ffdc474a libbpf: Define MFD_CLOEXEC if not available git tree: bpf final oops: https://syzkaller.appspot.com/x/report.txt?x=121f5ac9180000 console output: https://syzkaller.appspot.com/x/log.txt?x=141f5ac9180000 kernel config: https://syzkaller.appspot.com/x/.config?x=6fb1be60a193d440 dashboard link: https://syzkaller.appspot.com/bug?extid=ba82760c63ba37799f70 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=115671f1180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14f14e31180000 Reported-by: syzbot+ba82760c63ba37799f70@syzkaller.appspotmail.com Fixes: 6082b6c328b5 ("bpf: Recognize addr_space_cast instruction in the verifier.") For information about bisection process see: https://goo.gl/tpsmEJ#bisection