From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) (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 51642127E18 for ; Sat, 22 Mar 2025 09:28:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742635684; cv=none; b=VixLcJRgWQHre6vwKa8kOm4LKtvtNHkT9DWjt/SNwwgIK/Oc5f3x7HZqEMU+xlB8nlWspG/1uzO3cdgKTQ6mX+BPd5f9lFYor2Pmpzo6HS0F5NLE8dB3M6lfjm59W1SW4a/VyeGv5HAGK9mB0VjfHqU5Ve97q9uPa23zC+xXRa4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742635684; c=relaxed/simple; bh=YvP5plOupe1A1k9EZ7yU2X0y7ycDWIcFtZyz/cs0EWs=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=NDyY78wxfuMgWXAcq7DhHnRgCoqNXWViePVVT761k+JEUWbzUlKpJvGECg9RwzN317Mw6mOSZlWeLheTJO8wzx3jNOcxlUYO+Q/0E4kCMDQc3NQsUYwoJE/egdikG0p70Lr1WLEwPRjAIgdzUi8MWSxzpmWNNs4v6/f7IyhSP9c= 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=209.85.166.70 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-f70.google.com with SMTP id ca18e2360f4ac-85b3f480d86so223484739f.3 for ; Sat, 22 Mar 2025 02:28:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1742635682; x=1743240482; 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=T/1/8NSp23q/ACQLJxacEQ6xVJJpFBAovimyCbTcpNc=; b=YeQ//yFDVvNOhdMz3tyrkmlrEtI9elKd/TRAgQvcPFPHcNm95HgXL8/EBJ2t7jjUyT 70Rh/K7OGQ+Url3w49RDsmR+pWh8PGEGS/cvjIS2RM2t/KjoARPyggdV9m2VfVbgC5fr sM9tESHpWH3rSV7gDa0p7Fk8CbtwONCeR/tGkHyT+Dl5q3b7LpHxwBFjWqrltcHdsCX9 t8WKi+ipEH5bFoAPcIpjnAxj6BtyNsL9rR5K6uRFG4dHEC7PuAsJzzn8BiHt2Aq46qHv zFWAaH0BpyBkKlAG80Pl2qNKIFFCd/GEpkW6BsaMoU+C54GjQTqMrvmvaEvIfnCw4KgP JUNA== X-Forwarded-Encrypted: i=1; AJvYcCWBoI4atJCpBuWIVGO+X/E3iCSFsKioyDypuhDtMrJ1wxYPxiLwfDB2QPgkC3AwUFLkCwAO1ZzqAQ==@vger.kernel.org X-Gm-Message-State: AOJu0YyxGzsC5wmctyFnAD+RpbBuwclDlhnUmAQfIhRMcDEP5C+50LAc 6PsbX/kzohMXbQxQQtjMJ07o6IjDedxxv0ppOnUHkFdha5yTtewsNqlsEh3YAjfe2oxgJy3uK/a knD7yBrbc28Hd113HJa1KhyEW5iOBUTy9cVBdO8Yhab3UO4/l4i5mVvQ= X-Google-Smtp-Source: AGHT+IFsGhUOtcYYvOrW0tXzabFLcCZgbkG7y/DFv1qHp9uYbi8OSs02v+7vcOGJWwbwXCdClCGkWwkdlJZzy90RPDkfS+SkGEki Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:220f:b0:3d5:7f32:8d24 with SMTP id e9e14a558f8ab-3d59616b952mr65624375ab.15.1742635682477; Sat, 22 Mar 2025 02:28:02 -0700 (PDT) Date: Sat, 22 Mar 2025 02:28:02 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67de82a2.050a0220.31a16b.002e.GAE@google.com> Subject: Re: [syzbot] [io-uring?] WARNING: refcount bug in io_send_zc_cleanup (2) From: syzbot To: asml.silence@gmail.com, 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+cf285a028ffba71b2ef5@syzkaller.appspotmail.com Tested-by: syzbot+cf285a028ffba71b2ef5@syzkaller.appspotmail.com Tested on: commit: e1306007 io_uring/net: fix sendzc double notif flush git tree: https://github.com/isilence/linux.git syz/sendzc-cleanup console output: https://syzkaller.appspot.com/x/log.txt?x=15809c4c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=6fa548b75e783182 dashboard link: https://syzkaller.appspot.com/bug?extid=cf285a028ffba71b2ef5 compiler: Debian clang version 15.0.6, 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.