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 A558C350D79; Fri, 21 Nov 2025 13:55:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763733311; cv=none; b=M9lVLQqFYcipJ889Ql74TbVvZNtTNk5dEcM3mO+EthhSO9jgzeCLHT+/6Nrow+Ax+Ytln+Tz/PXNJ0Fs1jaBdKlWinaImcaroqo02ABMvlI0RVfvD39zTlr7tym0MLc/Nmv6ORBv0YDG6jm3bgvaxc2T1kDKPNONdcTXReNpsNk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763733311; c=relaxed/simple; bh=9He8KDO5cVVeSvcQiUoZ0uQdljDw5yePQDGHZ2nVp5M=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=PHJT14FPR5vMURGa0YMPLnJPFNNHllwW/0EZ+4rKcmaiKu4Bmao/hs+nRELdaml6EoX1fRSGdB8wjEPsO+CWOzXRugFCmky4j7vsTbZPzlKxWpe36XW81i+xajbAxV/C0yPBBvn33E0Wx0Ko+ZOKwxW2w5/ufqCaQh51pWyTiGc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ou/2n5sm; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ou/2n5sm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6A453C4CEF1; Fri, 21 Nov 2025 13:55:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1763733309; bh=9He8KDO5cVVeSvcQiUoZ0uQdljDw5yePQDGHZ2nVp5M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ou/2n5smnIF7ZmyVKGnJH/PJ0vgJjnYLTGFuT3U+UlTs5XOl6mCSYkWAIeMgC5eDT vSbYOrx4VzuhXQSvkCwdka/XM4syltEw7MsjnfiUwrCO/Gse9clcihLFtOvcBFbbaD 9AovLK3bkiowsfucqL+VgHxp3C2nyLw/LBDpWLoY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, ChenXiaoSong , ZhangGuoDong , Namjae Jeon , Steve French , Sasha Levin Subject: [PATCH 6.6 391/529] smb/server: fix possible memory leak in smb2_read() Date: Fri, 21 Nov 2025 14:11:30 +0100 Message-ID: <20251121130244.935160494@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251121130230.985163914@linuxfoundation.org> References: <20251121130230.985163914@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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: ZhangGuoDong [ Upstream commit 6fced056d2cc8d01b326e6fcfabaacb9850b71a4 ] Memory leak occurs when ksmbd_vfs_read() fails. Fix this by adding the missing kvfree(). Co-developed-by: ChenXiaoSong Signed-off-by: ChenXiaoSong Signed-off-by: ZhangGuoDong Acked-by: Namjae Jeon Signed-off-by: Steve French Signed-off-by: Sasha Levin --- fs/smb/server/smb2pdu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c index 9a58c5a6f9866..b3fa983a522fb 100644 --- a/fs/smb/server/smb2pdu.c +++ b/fs/smb/server/smb2pdu.c @@ -6772,6 +6772,7 @@ int smb2_read(struct ksmbd_work *work) nbytes = ksmbd_vfs_read(work, fp, length, &offset, aux_payload_buf); if (nbytes < 0) { + kvfree(aux_payload_buf); err = nbytes; goto out; } -- 2.51.0