From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) (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 7EC8034CC4 for ; Fri, 9 Aug 2024 08:15:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723191350; cv=none; b=M7myoPzwPqlAkp5txRx9+jhvBO5Ca0fUn/E6hqvkj5LeVDE9gcdob3h4u9KrQgd3OABgIJxEQ/B7q4IKBLco3J4pKeIXjMp7zd8P7pOya62t2Zf17/cJVymT7E0HI9gYO5txRuKXNc003qywSrLTku0KM9XJud/BULnkYfzcHac= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723191350; c=relaxed/simple; bh=nwEQiZ3UCQsYyia76yvGCguP3yp7krgBA9WRd5sdQB8=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=eeOLi7PVls7H6np51gYdlN+qcmFilnr23Jh/Igzquksw3dYlpGdEpvis27K3dz6/e1id0Zj7kn81J7GIDPO+WAaHPWh4jSdFQFhKBU6ENwcY2g+JocWv6EZKSROSDLYqsjKVbsAaMSr/REv15xyDg40w/xJKbQIWPtdTT/YxR50= 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=209.85.166.69 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-f69.google.com with SMTP id ca18e2360f4ac-81f8489097eso218617039f.3 for ; Fri, 09 Aug 2024 01:15:49 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723191348; x=1723796148; 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=kHqRj4gx9kZchfqm+YpYcaa7MOh5AO6YHrOsQOcMfjw=; b=YvsoaVL3C6dPLT99eTAE4BMWUWd9fjb0GyhHWVg2nWkpVGm4HUVb2SrGMGRCRoy8eb YDnv8f3b2BvvTQtcNMHciHmcBorSTF60I3frYLZpClq9afuCJSo6FwJf1NJf6Fg0A/A1 qle1oWXVk9y3yF7JCUsMCXR74+DUw4IoqU+pOI/s0TovHfX3dqqzzarJfjGpHst+RWkF Pbihb4sv7EQD6lv+qQG+N4f00UHT13vsXfbo2tEY/bJRbmqlQdlUYuGDNAdVot041/n5 c978cP2rh4yRizYV4dJb4ueR2uO618mXb0Ohet81VhxRzNgyfE4/neSvHt8jlurnFG5i xnvQ== X-Gm-Message-State: AOJu0YzXnonTkSBUZbzETZvaS4qTsUSn2lo9FMYVjZGeaHnWRSRUOANN 6FQag1C33OrIgjUq7RaN8JS68iFJaIZ0u5boXPt+n4UJTtnPvoO9XzWqQvQA6pLgmMxXYvSkBS9 jCT/Pxm2xFghPuRouY8eMy+V72HlZV4acrl1APeHX4Zh25xnCZq86YPI= X-Google-Smtp-Source: AGHT+IEV/vSOL6ozFbataxikj6ULw5pT0vJJjK+nK1xpQSh7BmjolJbpLoDVHhA7z4XYDvgO/xexotxtFeGR0CyjwWahVdfZVCO4 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:1655:b0:81f:a277:a2fd with SMTP id ca18e2360f4ac-8225eeb4c8cmr2000839f.4.1723191348626; Fri, 09 Aug 2024 01:15:48 -0700 (PDT) Date: Fri, 09 Aug 2024 01:15:48 -0700 In-Reply-To: <0000000000007ec511061f00a7b2@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000003717ae061f3bc0f7@google.com> Subject: Re: [syzbot] Re: [syzbot] [v9fs?] WARNING in v9fs_begin_writeback From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: Re: [syzbot] [v9fs?] WARNING in v9fs_begin_writeback Author: lizhi.xu@windriver.com add file refconut when add fid to list #syz test: upstream c0ecd6388360 diff --git a/fs/9p/fid.c b/fs/9p/fid.c index de009a33e0e2..4ccd9cb74c11 100644 --- a/fs/9p/fid.c +++ b/fs/9p/fid.c @@ -95,6 +95,7 @@ void v9fs_open_fid_add(struct inode *inode, struct p9_fid **pfid) struct p9_fid *fid = *pfid; spin_lock(&inode->i_lock); + fget(fid->fid); hlist_add_head(&fid->ilist, (struct hlist_head *)&inode->i_private); spin_unlock(&inode->i_lock);