From nobody Thu Oct 2 07:43:55 2025 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) (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 C367722069A for ; Fri, 19 Sep 2025 01:29:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.199 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758245365; cv=none; b=R4uL4K4tdXiLPBeugbAhq77PBUWX6JPBfb6wu/SYDqgAdWdkE3I0T/a+GdndxQhLgyTd3SiWlNc26UhePAbbeO2Yb+9v0rBoEt7lUk66V3zc21qwj90OnSgY4qqfQcA9nPXRA8/yu1BEJqjUK9Nlv8QRQCZdYwXfUdy3bITWMrc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758245365; c=relaxed/simple; bh=A09M7zGJ5poDd1VXV/aQuZzqoopz8Cvjgvey8UKJhAk=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=Zuotol3CAgmHCCwtywHAYTGM1qIcWfdhm6guBMtJNAdWebAo4wbUUiSWfGjqnCz1k2YkmYx0/JelLIM8qSPXO5+hBsQ3mFSCCFkRo3xsvecre02LXaUDhNIneoVrwSa38u3YynTnrBoPslJpt7kDPmRMXgoTN44Yb62Pl6QwJ+E= 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=209.85.166.199 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-il1-f199.google.com with SMTP id e9e14a558f8ab-4240a41d2caso19349485ab.3 for ; Thu, 18 Sep 2025 18:29:23 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758245363; x=1758850163; 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=zoSzpzm+OAkYWS2IRLuWR34e51fxY8fGfADcgfdZygk=; b=ERB205gkzszAi9xAzP2jTA9DtinMrj3xylIFpUukVEQcWM5jonMZKW5jOQXdnJKQYS Y3Dqu0LoRFXf9A7IVnRnnZ8iRtiVh0vQNdIpZBs32iNBG2gJcc0qXDz1BLChnn3806OZ CtdYIQ0VBLaaM7Cc1SEeDysyIOS6dTM/0vr0FIbRRpLudyc9UMe9P4/zmB+EKRnS2EzK uowcg4BeQYRNb2KhfCb83UVmmhn2XZr6SOZOm5F6PULkJA6AvuKmaHe1L90dsXQiWwVf tJwOGTys6z51QCQ9bfXazkoGGBfhO7KPlmNAw3GtFLPQe12ePJ1Jcq61vbmVQy7bxCuA p9Lg== X-Gm-Message-State: AOJu0Yy4ugjSgJP/TRdl/mOvFNk3vLtLs4ux603iywPXAtVHerCN4euu bO35YNr5hTORWqHgaebinWqC7CPN4imhwf3bDG5uyom/TeLdvqOLCY1umYnoYO0CQYU6c7k9A3Y z7eMezr25KnM9j8ZBrl2I3D5wsTP+tZN2SUcZS9TRAdm8009Qwg8eZ8SmK1Y= X-Google-Smtp-Source: AGHT+IGQxHliYcG+W+QP14hPNGkQMMhTNAbPJVhr9oOLXIChmVG0R0mcNKa955HTv2f7qDfvWq9CGkfD5WXLUD7UWPDDuzuJjOUE Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1746:b0:424:6fe:43c1 with SMTP id e9e14a558f8ab-42481968974mr26152925ab.19.1758245362953; Thu, 18 Sep 2025 18:29:22 -0700 (PDT) Date: Thu, 18 Sep 2025 18:29:22 -0700 In-Reply-To: <68cb3c24.050a0220.50883.0028.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68ccb1f2.a00a0220.37dadf.0010.GAE@google.com> Subject: Forwarded: Re: [syzbot] [netfs?] INFO: task hung in vfs_utimes (3) From: syzbot To: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: Re: [syzbot] [netfs?] INFO: task hung in vfs_utimes (3) Author: lizhi.xu@windriver.com #syz test diff --git a/fs/pipe.c b/fs/pipe.c index 731622d0738d..ca7a6746f8ef 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -356,8 +356,8 @@ anon_pipe_read(struct kiocb *iocb, struct iov_iter *to) buf->len =3D 0; } =20 + wake_writer |=3D pipe_full(head, tail, pipe->max_usage); if (!buf->len) { - wake_writer |=3D pipe_full(head, tail, pipe->max_usage); tail =3D pipe_update_tail(pipe, buf, tail); } total_len -=3D chars;