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 6FC2F3559D9; Wed, 3 Dec 2025 16:35:32 +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=1764779732; cv=none; b=JuuqdJPtDVJ3s2WfqSTtTZidimv78CBXOquvZStLHmE8bJWGkFgcIcywOJaD6il8s1qKFmtNsAzS2iVjUZqLaWo2c+sYvHDyaeVhMqHPuNPpsTziYv9yfmZ+TG8xGtFIq1SUCDgOLUdebpfvzUTvMfxrk8vEEge09EklIjm/LQE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764779732; c=relaxed/simple; bh=MkAJkwrYFu6k7xETgwdVe/uGoZU62egl0VMIanBoxNY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Ub633xpUB0SCypMJARNLC4g9rrdxLdsvDVmGRMeDrFInFeRjToEt0vSid3wqNnMiqFYLUUbFw0tGIiwfcvopuCzk1kNvkvTibYStoaBbGBw/D6oOApp3OAeDDcNEHeAAzSXlP2slcq8G3IaQhRpeKQGMLeZgcpdGMN8aub4jbco= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=xFq34tY2; 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="xFq34tY2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E387DC4CEF5; Wed, 3 Dec 2025 16:35:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1764779732; bh=MkAJkwrYFu6k7xETgwdVe/uGoZU62egl0VMIanBoxNY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=xFq34tY21306u9sn9Gt7MwKKAZ4xu84D0JWptEd71bj3R54onb3Afnv87gauDyOQo MktBTpU9WspB8fmddgFq7M6qy9MhGvoH16+hrnOzFlOYSbueK7arKpwmJdjC/+aPhw T+OJ1swzrpThlzCdVf2L9sRbC7umcZ00dnOl2gK4= 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 6.1 344/568] smb/server: fix possible memory leak in smb2_read() Date: Wed, 3 Dec 2025 16:25:46 +0100 Message-ID: <20251203152453.304303526@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251203152440.645416925@linuxfoundation.org> References: <20251203152440.645416925@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: 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 d2dca5d2f17cb..173135f6f7dbf 100644 --- a/fs/smb/server/smb2pdu.c +++ b/fs/smb/server/smb2pdu.c @@ -6405,6 +6405,7 @@ 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