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 E08101640B for ; Wed, 1 Nov 2023 22:21:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from mail-oa1-f69.google.com (mail-oa1-f69.google.com [209.85.160.69]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ADEB311D for ; Wed, 1 Nov 2023 15:21:04 -0700 (PDT) Received: by mail-oa1-f69.google.com with SMTP id 586e51a60fabf-1ef4f8d294eso734901fac.1 for ; Wed, 01 Nov 2023 15:21:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698877264; x=1699482064; 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=rWNK5rAhhP9EKmlHOfAbxlqIxZE8TUcPdTdYmSWehRY=; b=ZyzSjzDHorcII4W1mKNGOSFqzSC04Wq/rlqW7JJdJ/BXDBaEHnfpf8JdZEFnhlL0Sr 4CnpwVt+TBOTCSdILKpRCiAXlKSz7TqQoGgMLrPAbcjIQU6Y7QJ4pydMvJtdMIIYIJRB +lFklMu/4mIqbVLjvYBJiwvn8xSs7Y7tcsGn5dPt84pFiRNORs+qaaws421f7flRMPWW Zk8ZKEykSAZcrtYXmuXXSVT7tkoGaQQd7UgK5ICW7S9eAFiIP7nHSfj/I282MNORV9gr A01PB+gcPwvXJ7FCegSzpdSwVdUbbxi4MdEoDVJJ/ypBPqW9aJXPoKxERFsTeUGivvhM TzvQ== X-Gm-Message-State: AOJu0Yzgkm33ns8hGtl/iKEeggp8oczjlsZCpewtAsDBAL/3DhqHxFBt UTyBplRPATmhoSlwGXx73bLzMPKrDfMCjuczjVMULUWuyoa/ X-Google-Smtp-Source: AGHT+IH2wTJ4HmzhxXTucKEBfV2iL5v7+phh6V0Xl9g/QR6TCjYT6jQ72RdDgWQhYCmbN3tQSngqCbQMM4C6fsGDTe/sHHuIiyTL Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6870:8094:b0:1ef:9ee0:3378 with SMTP id q20-20020a056870809400b001ef9ee03378mr6285788oab.0.1698877263989; Wed, 01 Nov 2023 15:21:03 -0700 (PDT) Date: Wed, 01 Nov 2023 15:21:03 -0700 In-Reply-To: <000000000000ffc87a06086172a0@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000d6502306091eafb8@google.com> Subject: Re: [syzbot] [net?] KASAN: slab-use-after-free Read in ptp_release From: syzbot To: davem@davemloft.net, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, reibax@gmail.com, richardcochran@gmail.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 8f5de6fb245326704f37d91780b9a10253a8a100 Author: Xabier Marquiegui Date: Wed Oct 11 22:39:55 2023 +0000 ptp: support multiple timestamp event readers bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1019f36f680000 start commit: 89ed67ef126c Merge tag 'net-next-6.7' of git://git.kernel... git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=1219f36f680000 console output: https://syzkaller.appspot.com/x/log.txt?x=1419f36f680000 kernel config: https://syzkaller.appspot.com/x/.config?x=6e3b1d98cf5a2cca dashboard link: https://syzkaller.appspot.com/bug?extid=8a676a50d4eee2f21539 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13dd173b680000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16ce0840e80000 Reported-by: syzbot+8a676a50d4eee2f21539@syzkaller.appspotmail.com Fixes: 8f5de6fb2453 ("ptp: support multiple timestamp event readers") For information about bisection process see: https://goo.gl/tpsmEJ#bisection