From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ED4956FD3 for ; Sat, 9 Sep 2023 16:12:38 +0000 (UTC) Received: from mail-pg1-f198.google.com (mail-pg1-f198.google.com [209.85.215.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B31DE19C for ; Sat, 9 Sep 2023 09:12:37 -0700 (PDT) Received: by mail-pg1-f198.google.com with SMTP id 41be03b00d2f7-570a1c83727so3566953a12.1 for ; Sat, 09 Sep 2023 09:12:37 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694275957; x=1694880757; 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=v7nzmSUstAY9iXOgzx0SrvI4KAmIBqP4eruzpfGoWhE=; b=UYLMBCZlUz9LlJKWvEUZqkmSs+mop+fpQwbR7SCboqT9Mz7PxAaoyvPPMqmomx2W+i CkXqejIp2c0N+OOVa9sH25zV+rEOxJNAVJTAgooYzveywcKm3k38LR0jm+xebvLuYM6g m2JSNhpmCJFpqrm905tmp6U7adKM4osicGdAInth+MxZq/faZ7bVxna5WveXEaxNkbsG ddF18Y7wghgzo7Ua5PbpdOyXjvz56tJtgroK0QBEFPx6sJSJ2v1AAB+CTCQy/eGt5yXs gxMOSed8C0F+Eh+hpDX/rHLoxS/uoqTwnl3N0RJo7jH0Z5214lOlgWwLDikESuqiK7Mv I8zw== X-Gm-Message-State: AOJu0Yw85g5PXWPKfMguhnfhDQOlCgSomXySDMEojs485Ooo5MGqFWZx iJn0T/GOnnWCWd5jQ/5NnK8mCN5DWj9Yjn9J//Oq5b2cUInt X-Google-Smtp-Source: AGHT+IHB8tpqCVGsHysIYhKGMTC17bOoeqx6WIvtbuoYab8f/mFbkUgNQ45UMC/BR6WY4zyp3FT6rrxnhxirCoPnI1MWOUk84NMq Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a63:2742:0:b0:577:460c:1d1f with SMTP id n63-20020a632742000000b00577460c1d1fmr392879pgn.7.1694275957183; Sat, 09 Sep 2023 09:12:37 -0700 (PDT) Date: Sat, 09 Sep 2023 09:12:37 -0700 In-Reply-To: <000000000000d97f3c060479c4f8@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000945b5b0604ef5cb6@google.com> Subject: Re: [syzbot] [bpf?] general protection fault in bpf_prog_offload_verifier_prep From: syzbot To: andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, eddyz87@gmail.com, haoluo@google.com, hawk@kernel.org, horms@kernel.org, john.fastabend@gmail.com, jolsa@kernel.org, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, lmb@isovalent.com, martin.lau@linux.dev, netdev@vger.kernel.org, sdf@google.com, song@kernel.org, syzkaller-bugs@googlegroups.com, yhs@fb.com, yonghong.song@linux.dev Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=0.9 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL,SORTED_RECIPS,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net syzbot has bisected this issue to: commit 47a71c1f9af0a334c9dfa97633c41de4feda4287 Author: Andrii Nakryiko Date: Thu Apr 6 23:41:58 2023 +0000 bpf: Add log_true_size output field to return necessary log buffer size bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=132a4268680000 start commit: fa09bc40b21a igb: disable virtualization features on 82580 git tree: net final oops: https://syzkaller.appspot.com/x/report.txt?x=10aa4268680000 console output: https://syzkaller.appspot.com/x/log.txt?x=172a4268680000 kernel config: https://syzkaller.appspot.com/x/.config?x=634e05b4025da9da dashboard link: https://syzkaller.appspot.com/bug?extid=291100dcb32190ec02a8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1529c448680000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15db0248680000 Reported-by: syzbot+291100dcb32190ec02a8@syzkaller.appspotmail.com Fixes: 47a71c1f9af0 ("bpf: Add log_true_size output field to return necessary log buffer size") For information about bisection process see: https://goo.gl/tpsmEJ#bisection