From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from mail-pl1-f200.google.com (mail-pl1-f200.google.com [209.85.214.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B0E12FE for ; Sun, 26 Nov 2023 03:15:05 -0800 (PST) Received: by mail-pl1-f200.google.com with SMTP id d9443c01a7336-1cf904825c2so47807165ad.0 for ; Sun, 26 Nov 2023 03:15:05 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1700997305; x=1701602105; 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=yHaxLzHaMrVuEynKFwAXmqb1IBUV1cZFLGQCi6lgPdg=; b=thLQ4dem0fSAWhFkeqvfm3Im4RJm2zVkxjyULb/zx30JtHpiQmxQS+RVxzSmXtyyVW hDgdzwSA++i1fmlR5Q8jeNsZPOwlecKtkAd4NAdNgE183tF9MV0KY2JZAMq9y3jgsPsr dOe6Sm3VSSHt7GdQnRkJspnMulcDOSDyfUUl/moM082bJcosj1K+4L1kz80dCvTNKHJT ztGT5xk7yUGFJCGbU67yNbNzQXkPFWAcc87tBP3ZP9nLZZxaQ+/8GoUNvhmWrsHupnLT s88xaEDUromQbdbX2wdBeWHL1SibGSM06dqzHrKF8PoD0FCL/ccIQRaOHbM3q1Ssyf9E /XBA== X-Gm-Message-State: AOJu0YzbgORwe9huPa33EucSQLDaaY+tuAShummAzyFnAWeXgX4SmTnR 54wf4IDg3yEC1YMBGn30l/8FwS6riX0Mv2nk/8BV+dUygAOT X-Google-Smtp-Source: AGHT+IE0WR/9nta+zaUgKm7UCxRX3Ot8aDCrNULWGKAS247az7Z4XU/pN/NfDGZq7w8qAr1qX/4xDp1eaWge8tvxtmAFd5e2n1Vh Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a17:902:9883:b0:1cf:9f36:d983 with SMTP id s3-20020a170902988300b001cf9f36d983mr1599271plp.8.1700997305280; Sun, 26 Nov 2023 03:15:05 -0800 (PST) Date: Sun, 26 Nov 2023 03:15:05 -0800 In-Reply-To: <000000000000a135c0060a2260b3@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000252e5e060b0c4ccc@google.com> Subject: Re: [syzbot] [bluetooth?] KASAN: null-ptr-deref Read in ida_free (4) 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, luiz.dentz@gmail.com, luiz.von.dentz@intel.com, marcel@holtmann.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, william.xuanziyang@huawei.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 181a42edddf51d5d9697ecdf365d72ebeab5afb0 Author: Ziyang Xuan Date: Wed Oct 11 09:57:31 2023 +0000 Bluetooth: Make handle of hci_conn be unique bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1345177ce80000 start commit: 8c9660f65153 Add linux-next specific files for 20231124 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=10c5177ce80000 console output: https://syzkaller.appspot.com/x/log.txt?x=1745177ce80000 kernel config: https://syzkaller.appspot.com/x/.config?x=ca1e8655505e280 dashboard link: https://syzkaller.appspot.com/bug?extid=51baee846ddab52d5230 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10d54c08e80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=160ef1a4e80000 Reported-by: syzbot+51baee846ddab52d5230@syzkaller.appspotmail.com Fixes: 181a42edddf5 ("Bluetooth: Make handle of hci_conn be unique") For information about bisection process see: https://goo.gl/tpsmEJ#bisection