From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 955EF205AA4 for ; Mon, 16 Dec 2024 14:06:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734357966; cv=none; b=LYsoM18+0qMZUDLLRJ5HjrXYrPMeTJa9IMlLdLafusjvHbrciRdxDvYzfuZ5onUG8IR+Rp6IE4wYRQeSlzN9JIRg991wtbtBwlhGGJ3Hx7gfvK5ndWeMom584oIK8OipY1djrIaPDSwQUgZ8NpDHjK4Ycl6v8RgSVgG4dWu4Jt4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734357966; c=relaxed/simple; bh=suyVl3bOYmINCJkMIB1VeSF66Pk88H/s/xO0gYEOGRI=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=gEd0KJLGV+Ybh9CMNDT9gb0MCOLX7sGiSbTNXAruosCUEzcWEWfgbBSVrk9qyKfktkNggV8Ej/L1cDlRahbaGvntuq/R3jMOJFaABw9mk9X5F8DGV1nSWheCwTyjNA6ieOvPBEVLoP8mupi6pJ46PdazIuSz6Af50VKU2MzRYK0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f71.google.com with SMTP id ca18e2360f4ac-844d5c4a27fso811129639f.0 for ; Mon, 16 Dec 2024 06:06:04 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1734357963; x=1734962763; 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=1nPsDvmGKodXuv1uFoU8mBvrLWQj3ARA/ptF52uOQjQ=; b=AkYuSA5bdY3DIulDrudTXpr2aMOhETycHVXT9iHm+s4D+SsaeB7zleUdhVcgozhEgo IjeMusdIpU/U641p6Z086nwuAUr8OE36MUhOME2YqhLK4qRjonXYUVWjxyTGZWDATeS2 13NOLjZdJcA8z2GULSy77uDP8fe2IiOtYknSC5JFtgQX2cQ7Nzn+GuAmrIBPBqfmqa/Q grKIQLwsD1IS6pJoF4b2b6gJdTRv0VPHyFS4v0UOgnDC0KuxzfAH6Zf8GNZaU90HNiAF y0JeZxLgOA7WBxRgRtQRnyPTlI7Hpwyy0kMjwvVsrz/tnQX9RMqipDqQOBWIpc14FUKP GHZg== X-Forwarded-Encrypted: i=1; AJvYcCXQRVo0lzoO0DKxYbHbAraG8UQrb6sBrkmzY9G/YciMesrijzOb1A6xACtSYkPwSQFgpF4C7T119HXN22Q=@vger.kernel.org X-Gm-Message-State: AOJu0YxpqVW6qInPDRAz189TFieTv0mfRh8nnSXnwo1EWHM5LBufhwmV qVuyHRlFvJgBG/NjjmOWtsNvihVRp4bezzCtxMJQXdgEPRXuOYPHjyPc3tFWDXIXChpAMb12lz8 ESCcqPMEJQ1gTGV+vgDuP2l0k+eEqSR9u3ob01OV+EL/CugXd+bS90pU= X-Google-Smtp-Source: AGHT+IHWXAzO+gCEEm6249LnaKArOUQINHIQSGOC5gc6d0Qt78HhlJEfKhquf9A5msntWLabenLGPiR+3ZTLSA79BGKS+iOXZZ2s Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1ca8:b0:3a7:4674:d637 with SMTP id e9e14a558f8ab-3afeda2ebadmr127955865ab.3.1734357963612; Mon, 16 Dec 2024 06:06:03 -0800 (PST) Date: Mon, 16 Dec 2024 06:06:03 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <676033cb.050a0220.37aaf.0131.GAE@google.com> Subject: Re: [syzbot] [trace?] KASAN: use-after-free Read in ring_buffer_map From: syzbot To: eadavis@qq.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+345e4443a21200874b18@syzkaller.appspotmail.com Tested-by: syzbot+345e4443a21200874b18@syzkaller.appspotmail.com Tested on: commit: f5f643b6 ring-buffer: Fix oob in __rb_map_vma git tree: https://github.com/ea1davis/linux kt/syz console output: https://syzkaller.appspot.com/x/log.txt?x=147bfcdf980000 kernel config: https://syzkaller.appspot.com/x/.config?x=e8d97faf7b870c89 dashboard link: https://syzkaller.appspot.com/bug?extid=345e4443a21200874b18 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.