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Mon, 11 Nov 2019 15:45:01 -0800 (PST) Date: Mon, 11 Nov 2019 15:45:01 -0800 In-Reply-To: <0000000000007f69a2059714b34d@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000058443705971ab84d@google.com> From: syzbot To: alexandre.belloni@bootlin.com, allison@lohutok.net, alsa-devel-owner@alsa-project.org, alsa-devel@alsa-project.org, bhelgaas@google.com, enric.balletbo@collabora.com, gregkh@linuxfoundation.org, kirr@nexedi.com, linux-kernel@vger.kernel.org, lkundrak@v3.sk, logang@deltatee.com, perex@perex.cz, rfontana@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, tiwai@suse.com, tiwai@suse.de X-Mailman-Approved-At: Tue, 12 Nov 2019 11:14:25 +0100 Subject: Re: [alsa-devel] KASAN: use-after-free Read in snd_timer_open X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed"; DelSp="yes" Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" syzbot has bisected this bug to: commit 6a34367e52caea1413eb0a0dcbb524f0c9b67e82 Author: Takashi Iwai Date: Thu Nov 7 19:20:08 2019 +0000 ALSA: timer: Fix possible race at assigning a timer instance bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16b5dde6e00000 start commit: 6980b7f6 Add linux-next specific files for 20191111 git tree: linux-next final crash: https://syzkaller.appspot.com/x/report.txt?x=15b5dde6e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=11b5dde6e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=2af7db1972ec750e dashboard link: https://syzkaller.appspot.com/bug?extid=4476917c053f60112c99 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=108fbfece00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1055d5aae00000 Reported-by: syzbot+4476917c053f60112c99@syzkaller.appspotmail.com Fixes: 6a34367e52ca ("ALSA: timer: Fix possible race at assigning a timer instance") For information about bisection process see: https://goo.gl/tpsmEJ#bisection _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel