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 3976E2628D; Sat, 30 May 2026 17:54:35 +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=1780163676; cv=none; b=tJc1dAuENWt6nSus25QFnUvxE5mM5qcH6QE7gj98eYCTEgkLe+KeGQMZuU01KYYE0JBkQj39SBWL2EG/mJ2nlgTqXNKf1H/ubr8IhK70T8T87UveDVe3ce9/PKBo1l91FjHaV38W3jDh4V5GTjczXMi88Hi2Ff4BOC/75v9p1to= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780163676; c=relaxed/simple; bh=qATxPr7tuiI9/KLjHuWxKmFD9qOPcir++BxCkTopnow=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nCpUCo/gg6ZUHcBBEizykMTBAZ2Rg0Dwaiaxt92uimtJ3qAayD5r7yobdYgz03o5qrih9K/6wOqkM8T18vhwaiwrI6x+585LWNEFnCXuXZd3oqr3egiTJWwj8sja5GVzuRdc9nPOSZXrDEpvyYWxmBzSj5+dDVIZrDboUi5W9Bc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=z6hCgb6i; 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="z6hCgb6i" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 760151F00893; Sat, 30 May 2026 17:54:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1780163675; bh=Uavf3k8IK/aRwxAyGoMsL/ym1W0iSxBIL57e+UzWrCk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=z6hCgb6i4i7I9d4Ic6/2h3Mz/ygH289Y4oEMjNVBlO1srcFpCPsyAJyIwYcu/Nn2U 5IZ2/6A2GbdbQtmdu9ODaFz+JC+N2WxIkazC1IYWQCPbuzdDe6I1B/SIDaRXQsv2cL jKE1PNJhmyQIqQ65EHJwpXkKmn8CO8z0Ee7eD398= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable , Felix Gu , Heikki Krogerus Subject: [PATCH 5.15 299/776] usb: ulpi: fix memory leak on ulpi_register() error paths Date: Sat, 30 May 2026 18:00:13 +0200 Message-ID: <20260530160248.292298821@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260530160240.228940103@linuxfoundation.org> References: <20260530160240.228940103@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 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Felix Gu commit 0b9fcab1b8608d429e5f239afb197de928d4de7d upstream. Commit 01af542392b5 ("usb: ulpi: fix double free in ulpi_register_interface() error path") removed kfree(ulpi) from ulpi_register_interface() to fix a double-free when device_register() fails. But when ulpi_of_register() or ulpi_read_id() fail before device_register() is called, the ulpi allocation is leaked. Add kfree(ulpi) on both error paths to properly clean up the allocation. Fixes: 01af542392b5 ("usb: ulpi: fix double free in ulpi_register_interface() error path") Cc: stable Signed-off-by: Felix Gu Reviewed-by: Heikki Krogerus Link: https://patch.msgid.link/20260407-ulpi-v1-1-f3fafe53f7b2@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/common/ulpi.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/drivers/usb/common/ulpi.c +++ b/drivers/usb/common/ulpi.c @@ -244,12 +244,15 @@ static int ulpi_register(struct device * ACPI_COMPANION_SET(&ulpi->dev, ACPI_COMPANION(dev)); ret = ulpi_of_register(ulpi); - if (ret) + if (ret) { + kfree(ulpi); return ret; + } ret = ulpi_read_id(ulpi); if (ret) { of_node_put(ulpi->dev.of_node); + kfree(ulpi); return ret; }