From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (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 150FC245033 for ; Thu, 9 Oct 2025 17:36:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760031368; cv=none; b=g1p8TewDvG7w8RJgHbHB6tMensc+n4CTZsnxF73Ae3rV7AOA83eFPDuc+Gcup2cobq7aKVerJ7Bq7Rq3XNC1RP0YQUajmqVP+EELgY54o1dHj/1ZdWpHxbNVBFyB4hRZqRZPqEa/YBx5I/x7pN/pL+dxFJmJLeq/31+r6sqwruU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760031368; c=relaxed/simple; bh=OpV4TsGF92X3oiskZRRC6V3HdMHdVZa3kcGuZNK4DV8=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=GLaGOvsJj7HSXtR3x1F1PcR4pwcn0YgRam0mcK+hZl2f0iMkYBFS29lz7wfLxzjHF+U64SpOAx6jGs2AaBiVOvcuJmW4nYrZCkYWvTTH0wd2BuE1vqHSRZQoS8O9S9HliKkTYhY4LVAMY9C4aa+MQC1dHmt/6DDZQvqaa1C3jAU= 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=209.85.166.72 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-f72.google.com with SMTP id ca18e2360f4ac-8877131dec5so264850439f.2 for ; Thu, 09 Oct 2025 10:36:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1760031363; x=1760636163; 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=k4/wNl39+2c4C44X8Q+rbUZnGlTwKglY852L6exZeSg=; b=jzu1bKHQWZ/TBXMK42HgjY9bOaKH8FrRNOWjjBwC7yAHzMmNiBBycZWpOc/AFcM24J x2+S36Oyicz6G+VzoNN1+azzbaVELQ/sFNrSVPOW2bAd2IHjVbKLrfCFp3tigtSTJyhM H43vgR3ZQw2HPRWIersG1B9sYViciFrtHoO79tiacbw25Sq2QJ3Io1l40iOQEJOfKspU zpiGRv7pCWRmzhCOZdxIH0B5HjQiAzfASQKXy5H22pad56/b1jjP/KN+qLwKpfi5IJcS FfHqj0Zncf7AB/lSUq52nGTR1MxWNpESaHeGdLjiXAI0ODgt4RhjLeZfnwUQqisa3Bio xIdw== X-Forwarded-Encrypted: i=1; AJvYcCVTFMZHM+LeFXKGwNpFoQcvJCjZeE/fzzJUeKoxZmO2qOSPD9T/TSLBZ2fb7ReLrTbFfVJlxjDM4g==@vger.kernel.org X-Gm-Message-State: AOJu0YzIAmm2UDlOWaZ1M1i/Ci9gIaz4T6W2K8IuZgaKaKDwAx5EHexo ZGw0gJqsM3osYmU/0xwhJpTXOfcewDYziUEzZ16+/6t8uBb4GwzBWMvAjqV5xPZ1BAjoF9D8aNi 0ixaqmXTqikMunwCmKxqQNHJOFdosDrSSctJ+fe5cJxfqXWdshyexnuyfqCA= X-Google-Smtp-Source: AGHT+IFyyeL+us2LF1YiBURzVWw058rW2fTifH+zt9ge+YLvksn3kTnKBmg033NPurehAtV13ccGg8ZWLR65I3gruITP4jFbFG/L Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:18c7:b0:42d:8a3f:ec8b with SMTP id e9e14a558f8ab-42f87362229mr74454055ab.3.1760031363121; Thu, 09 Oct 2025 10:36:03 -0700 (PDT) Date: Thu, 09 Oct 2025 10:36:03 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68e7f283.050a0220.91a22.000b.GAE@google.com> Subject: Re: [syzbot] [io-uring?] KASAN: slab-use-after-free Read in io_waitid_wait From: syzbot To: axboe@kernel.dk, io-uring@vger.kernel.org, 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+b9e83021d9c642a33d8c@syzkaller.appspotmail.com Tested-by: syzbot+b9e83021d9c642a33d8c@syzkaller.appspotmail.com Tested on: commit: 554d1823 io_uring/waitid: use io_waitid_remove_wq() co.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git syztest console output: https://syzkaller.appspot.com/x/log.txt?x=10fe1304580000 kernel config: https://syzkaller.appspot.com/x/.config?x=6da9233e22696ba7 dashboard link: https://syzkaller.appspot.com/bug?extid=b9e83021d9c642a33d8c compiler: gcc (Debian 12.2.0-14+deb12u1) 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.