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 B5804154B1 for ; Thu, 20 Jul 2023 21:23:36 +0000 (UTC) Received: from mail-oi1-f198.google.com (mail-oi1-f198.google.com [209.85.167.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EBCC12123 for ; Thu, 20 Jul 2023 14:23:34 -0700 (PDT) Received: by mail-oi1-f198.google.com with SMTP id 5614622812f47-3a1c2d69709so2605051b6e.1 for ; Thu, 20 Jul 2023 14:23:34 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689888214; x=1690493014; 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=r7KWzfTm0PGl9M6f8vdarv2h59an/fU44lp1Ve8prEo=; b=lOgkWbyE7asTEfHBVBB99Ldn6SSm+O5YiEEk0KMMvcEZKvdW0FzNX60FUhav+48Oao wiwPmBbu0H/1MjuR3sAyKTn2fjIOl/JX8O4DCFYpXqroOXTdwZ6GdODScyKAjm3cDfKt OgwDmBf7Wmi+cr2cQz+2GFSN+SWH2bXp2Js7tXDyGtwOUYBXaQ61czKorvWW7uBPJymF x9rmpJJBCJucJMibUgGL4FvdmuSTpGXZfTjImdl3YVT2uV3PeP45V4dufmZ0pjNjyn54 gzrOUWwJBri9Lcbo0RLzGH7z1jIWacnqilf0PduxwdRkRLgJ3nUbEOVGOtp22B39R4Cy Y+8g== X-Gm-Message-State: ABy/qLaRV9WaRRs37As3d8sKbbyoyGf8sJLj/e91F5TjEjTwtXTK8QlK +SuWlAnnMCrGq+J1R/iNu3/HjMab/nokKQcIA0Kw98UUqTyp X-Google-Smtp-Source: APBJJlGHzbDOfITCcrazhMrBDL0FHHT9WhSmJ+/AhhtZeN8BLt+YJtpO7j2pEEsEzEmOk5iQQdWIwFqCs47N01yTHFwM18ZTC47y Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:1590:b0:3a3:8cf6:5edf with SMTP id t16-20020a056808159000b003a38cf65edfmr153990oiw.9.1689888214048; Thu, 20 Jul 2023 14:23:34 -0700 (PDT) Date: Thu, 20 Jul 2023 14:23:33 -0700 In-Reply-To: <94eb2c059ce01f643c0569a228ee@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000b566c50600f1c206@google.com> Subject: Re: [syzbot] [net?] KMSAN: uninit-value in __netif_receive_skb_core From: syzbot To: akpm@linux-foundation.org, alaaemadhossney.ae@gmail.com, ast@kernel.org, bp@alien8.de, bpoirier@suse.com, daniel@iogearbox.net, dave.hansen@linux.intel.com, davem@davemloft.net, dvyukov@google.com, edumazet@google.com, elena.reshetova@intel.com, glider@google.com, hpa@zytor.com, ishkamiel@gmail.com, keescook@chromium.org, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, makita.toshiaki@lab.ntt.co.jp, maloney@google.com, mingo@redhat.com, netdev@vger.kernel.org, rami.rosen@intel.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, tonymarislogistics@yandex.com, willemb@google.com, x86@kernel.org Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_00,FROM_LOCAL_DIGITS, FROM_LOCAL_HEX,HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_BLOCKED, RCVD_IN_MSPIKE_H2,SORTED_RECIPS,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE 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 e420bed025071a623d2720a92bc2245c84757ecb Author: Daniel Borkmann Date: Wed Jul 19 14:08:52 2023 +0000 bpf: Add fd-based tcx multi-prog infra with link support bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13dfaae6a80000 start commit: 03b123debcbc tcp: tcp_enter_quickack_mode() should be static git tree: net-next final oops: https://syzkaller.appspot.com/x/report.txt?x=103faae6a80000 console output: https://syzkaller.appspot.com/x/log.txt?x=17dfaae6a80000 kernel config: https://syzkaller.appspot.com/x/.config?x=32e3dcc11fd0d297 dashboard link: https://syzkaller.appspot.com/bug?extid=b202b7208664142954fa syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15cc32e6a80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16aace14a80000 Reported-by: syzbot+b202b7208664142954fa@syzkaller.appspotmail.com Fixes: e420bed02507 ("bpf: Add fd-based tcx multi-prog infra with link support") For information about bisection process see: https://goo.gl/tpsmEJ#bisection