From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 B45E6282F03; Sat, 12 Sep 2026 15:29:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789226959; cv=none; b=UW2N+H00dzpDasGEySG8ef1u6JqAe416lDLxquLhDROelOk35gh/2IMaikpkiWtAE1kqCqz1XG82BdRqi7JUAOUTDnaED5Y/ik2hUjMPLl7LpG5zfHueQvIlTnTG5tB3CkBak6aH3TUeZyR0prgo+n3PRsBa7G2s7xM3kboSntw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789226959; c=relaxed/simple; bh=nxljLqFcIoqJIlvJumoj3gw0SwkFH9mz7A2c/HO5JiM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ftAOGZKfofLsCf0v1Ie9DGFT3VyxjYO+fbwfmbtpoOW+d7CnAJ6bKFFqaY/0M2B0CzBLKbdvVrmQmS8nusXSEMkLcHr+L6gDS/g8oDJcnWOjDXiWzdM90juCp9W0B0ccQqHgnrB9KoxKXagKCk75xoDOAetzOSIggPqHx/Waby8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=GwNiQeVv; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="GwNiQeVv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 552531F000FF; Sat, 12 Sep 2026 15:29:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789226958; bh=MDqPgN/Kg2ITVgOPlC5sVvRbN4Jrpv/78IaI7x/nfg8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=GwNiQeVvlAcUA38Q8FCLiuzOjI1JewmnIHbIMAq7pF8nz8HyKFSdXOCNDMgeweacZ Y//mjilpI9Cui6Sqs31NXLd3tSQSthTl0z9IuDelGwEBMuZE1UxF39qSiGuKC34pkz agoublGEjW6htat/QFZDtgtgjpfGdwQXnNXRmn+c= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yichong Chen , Tyler Hicks Subject: [PATCH 6.1 0083/1191] ecryptfs: release message context on send failure Date: Sat, 12 Sep 2026 08:46:51 +0200 Message-ID: <20260912065550.040227641@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065548.086904252@linuxfoundation.org> References: <20260912065548.086904252@linuxfoundation.org> User-Agent: quilt/0.69 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-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Yichong Chen commit 219644a3ad5518217b2d62cad6d2c36a2308c949 upstream. ecryptfs_send_message_locked() moves a message context from the free list to the allocated list before sending the request to the userspace daemon. If ecryptfs_send_miscdev() fails, the context is left on the allocated list and cannot be reused. Move it back to the free list on failure and clear the caller's pointer. Fixes: f66e883eb618 ("eCryptfs: integrate eCryptfs device handle into the module.") Cc: Signed-off-by: Yichong Chen Signed-off-by: Tyler Hicks Signed-off-by: Greg Kroah-Hartman --- fs/ecryptfs/messaging.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) --- a/fs/ecryptfs/messaging.c +++ b/fs/ecryptfs/messaging.c @@ -285,9 +285,16 @@ ecryptfs_send_message_locked(char *data, mutex_unlock(&ecryptfs_msg_ctx_lists_mux); rc = ecryptfs_send_miscdev(data, data_len, *msg_ctx, msg_type, 0, daemon); - if (rc) + if (rc) { printk(KERN_ERR "%s: Error attempting to send message to " "userspace daemon; rc = [%d]\n", __func__, rc); + mutex_lock(&ecryptfs_msg_ctx_lists_mux); + mutex_lock(&(*msg_ctx)->mux); + ecryptfs_msg_ctx_alloc_to_free(*msg_ctx); + mutex_unlock(&(*msg_ctx)->mux); + mutex_unlock(&ecryptfs_msg_ctx_lists_mux); + *msg_ctx = NULL; + } out: return rc; }