From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CDD601A58C for ; Mon, 16 Oct 2023 09:04:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="E1KDjJ0u" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 183DDC433C8; Mon, 16 Oct 2023 09:04:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1697447070; bh=AGud115ijMb+4SnYR7O6Wa54YZDBAscWVvd/KCEH00k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=E1KDjJ0upL3Zep2qaJ0IDb61cfqEOYxhKUmcqYicoD49lt6YWyxa91w2ifgMA7Wp5 e7SYKfeMF9M/kgCQgBBDF8ieJ55S+BWTCFnhepZk9ozJl7MEPuJxiiuU6YiHCXuryQ WtAAxvaWjJyxPf8pTGjLtW4gQj863fnAsizQN9hg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Namjae Jeon , Steve French Subject: [PATCH 6.1 095/131] ksmbd: not allow to open file if delelete on close bit is set Date: Mon, 16 Oct 2023 10:41:18 +0200 Message-ID: <20231016084002.425138931@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231016084000.050926073@linuxfoundation.org> References: <20231016084000.050926073@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Namjae Jeon commit f43328357defc0dc9d28dbd06dc3361fd2b22e28 upstream. Cthon test fail with the following error. check for proper open/unlink operation nfsjunk files before unlink: -rwxr-xr-x 1 root root 0 9월 25 11:03 ./nfs2y8Jm9 ./nfs2y8Jm9 open; unlink ret = 0 nfsjunk files after unlink: -rwxr-xr-x 1 root root 0 9월 25 11:03 ./nfs2y8Jm9 data compare ok nfsjunk files after close: ls: cannot access './nfs2y8Jm9': No such file or directory special tests failed Cthon expect to second unlink failure when file is already unlinked. ksmbd can not allow to open file if flags of ksmbd inode is set with S_DEL_ON_CLS flags. Cc: stable@vger.kernel.org Signed-off-by: Namjae Jeon Signed-off-by: Steve French Signed-off-by: Greg Kroah-Hartman --- fs/smb/server/vfs_cache.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/fs/smb/server/vfs_cache.c +++ b/fs/smb/server/vfs_cache.c @@ -105,7 +105,7 @@ int ksmbd_query_inode_status(struct inod ci = __ksmbd_inode_lookup(inode); if (ci) { ret = KSMBD_INODE_STATUS_OK; - if (ci->m_flags & S_DEL_PENDING) + if (ci->m_flags & (S_DEL_PENDING | S_DEL_ON_CLS)) ret = KSMBD_INODE_STATUS_PENDING_DELETE; atomic_dec(&ci->m_count); } @@ -115,7 +115,7 @@ int ksmbd_query_inode_status(struct inod bool ksmbd_inode_pending_delete(struct ksmbd_file *fp) { - return (fp->f_ci->m_flags & S_DEL_PENDING); + return (fp->f_ci->m_flags & (S_DEL_PENDING | S_DEL_ON_CLS)); } void ksmbd_set_inode_pending_delete(struct ksmbd_file *fp)