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 B19AE624 for ; Fri, 18 Aug 2023 04:39:38 +0000 (UTC) Received: from mail-pl1-f198.google.com (mail-pl1-f198.google.com [209.85.214.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D03E73AAC for ; Thu, 17 Aug 2023 21:39:36 -0700 (PDT) Received: by mail-pl1-f198.google.com with SMTP id d9443c01a7336-1bbb97d27d6so7181505ad.1 for ; Thu, 17 Aug 2023 21:39:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692333576; x=1692938376; 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=dvFwXjLMYeqdlXwre0HE3uWwxv+R86ki6i68P3Vs0+0=; b=BkwQtKp66ylSpGe/FOwOSLHBovXM3e5WZUFd3k2+TlLiJ5hq39e2N2gug0PQ+DWeqJ lBbSf3350C8vAwwnyHJ49rlex9hAQ80oG982bXUBiTPU119hTBDpMxsFIZqsu40F88Gs yTYADe0yfjRhYCo/Pa2ExX3G2tYOCEvEe6iorMzITnyM43rBqfhs15FFmGYhOZkIVDxo 9ZfWOIsBAK8SqCxa+8NMRfM/Gv9Kk5I7TOd7H6BW6zosaT+wOuJkW8ZKl4mm9lA3SIL6 tqZtZ+X+xZo2w6wSxDrHrqAWqMYZ9PwgkY2vW+akqxgdLaiGQbX913MxqkGSyAkVv5tb GmFA== X-Gm-Message-State: AOJu0Yz/Y02mtDX3tTo3A02lHWCIg4wP+o1bqBHOIv5SGfgRgU96mM4Q I4EIxHgcML3mRshNV+n/eMt6ZAWgfazlXTQIm7QbH+mvhH6v X-Google-Smtp-Source: AGHT+IEOWZ9TR7uxnnrr5o2vN1zMwhChrSWkI3uvdoJ384ju6Mbmly2riQQtj6/6k2K4DgTVbAMNubudY8qv1xdOJsYBGe16jePd Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a17:902:da92:b0:1b9:e8e5:b0a4 with SMTP id j18-20020a170902da9200b001b9e8e5b0a4mr573998plx.8.1692333576338; Thu, 17 Aug 2023 21:39:36 -0700 (PDT) Date: Thu, 17 Aug 2023 21:39:36 -0700 In-Reply-To: <00000000000013b93805fbbadc50@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000a8c57a06032b1dd2@google.com> Subject: Re: [syzbot] [bluetooth?] KASAN: slab-use-after-free Write in sco_chan_del From: syzbot To: davem@davemloft.net, edumazet@google.com, johan.hedberg@gmail.com, kuba@kernel.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, lrh2000@pku.edu.cn, luiz.dentz@gmail.com, luiz.von.dentz@intel.com, marcel@holtmann.org, netdev@vger.kernel.org, pabeni@redhat.com, pav@iki.fi, syzkaller-bugs@googlegroups.com 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,URIBL_BLOCKED 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 45c37c4e9c9aab5bb1cf5778d8e5ebd9f9ad820a Author: Luiz Augusto von Dentz Date: Wed Aug 9 23:49:33 2023 +0000 Bluetooth: hci_sync: Fix UAF in hci_disconnect_all_sync bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1331e265a80000 start commit: 47762f086974 Add linux-next specific files for 20230817 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=10b1e265a80000 console output: https://syzkaller.appspot.com/x/log.txt?x=1731e265a80000 kernel config: https://syzkaller.appspot.com/x/.config?x=ed03cf326b3ef94c dashboard link: https://syzkaller.appspot.com/bug?extid=cf54c1da6574b6c1b049 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1125bc65a80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14ce8f03a80000 Reported-by: syzbot+cf54c1da6574b6c1b049@syzkaller.appspotmail.com Fixes: 45c37c4e9c9a ("Bluetooth: hci_sync: Fix UAF in hci_disconnect_all_sync") For information about bisection process see: https://goo.gl/tpsmEJ#bisection