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 3E5633C3450; Wed, 30 Sep 2026 19:03:09 +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=1790794990; cv=none; b=G5x5aLqRgQR+zquktgHAyYZkV+Kd4wQEMFx0B5b2WtcFkwXHgQav8IuZCG20VVOJp9g8JhOs22ySRvnPY/A//hrjapYyGoK+H5tKd4YlXZzEK9ZDag+CpV+1zaDOuf6qDoUNAuur60AILQ6Ponj5H8EJ4xdLuxP9j5Vlx/7AWBM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790794990; c=relaxed/simple; bh=+y29lrQcMqUGs43hKtSgFifc87SyNcmtoBbaDctseU4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bokOFeU1W2as2tlpGqiX8PgfHkYP7v4NMb1XBXRUG/CL8fEe6ylNzo5PpfoyNsUp4bJiICrzKS8dtre/XflMJJ1F+Wfu2DSL9EqqsBqXafII0p43vARfuRB9bmGIBBaIJ6gWX6349xz2bp0Aow3QTCdzr2fM4GFCB7/6+NQtV4Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=kpWauoUJ; 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="kpWauoUJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 883F81F000FF; Wed, 30 Sep 2026 19:03:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790794989; bh=tLDBKF1lPtINxmX8U8YTxX/an3VHvfvLzDaW0a7jDGw=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=kpWauoUJjps1E97v9CFi/qnPz/BCVlRKm0mXZ6vjrq7EEvtatFCMxlYzSn1PXsGtd MXjwoIxjRw006okpCLitnYAIvcqq5KBMKijh37cLxN0C/lpFhRqJ7jSqJPARR2G4na kodMteMDH/nP9yKeTG5q0EmJ+ZhjIr2/VK3GmCMU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Tzung-Bi Shih , Guenter Roeck , Sasha Levin Subject: [PATCH 6.6 0403/1193] watchdog: msc313e: Fix NULL pointer dereference in PM callbacks Date: Wed, 30 Sep 2026 17:18:07 +0200 Message-ID: <20260930152443.147702838@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152434.301151190@linuxfoundation.org> References: <20260930152434.301151190@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: Tzung-Bi Shih [ Upstream commit e3eceb76515910746e6268c4e4ac1c07516ebd7b ] msc313e_wdt_probe() doesn't set the driver data for the platform device. As a result, dev_get_drvdata() in msc313e_wdt_suspend() and msc313e_wdt_resume() will return NULL, leading to a NULL pointer dereference afterward. Set the platform device driver data in msc313e_wdt_probe(). Fixes: e9800b799464 ("watchdog: Add Mstar MSC313e WDT driver") Signed-off-by: Tzung-Bi Shih Link: https://patch.msgid.link/20260827044700.554333-2-tzungbi@kernel.org Signed-off-by: Guenter Roeck Signed-off-by: Sasha Levin --- drivers/watchdog/msc313e_wdt.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/watchdog/msc313e_wdt.c b/drivers/watchdog/msc313e_wdt.c index 90171431fc594..3b62650375628 100644 --- a/drivers/watchdog/msc313e_wdt.c +++ b/drivers/watchdog/msc313e_wdt.c @@ -125,6 +125,7 @@ static int msc313e_wdt_probe(struct platform_device *pdev) set_bit(WDOG_HW_RUNNING, &priv->wdev.status); watchdog_set_drvdata(&priv->wdev, priv); + platform_set_drvdata(pdev, priv); watchdog_init_timeout(&priv->wdev, timeout, dev); watchdog_stop_on_reboot(&priv->wdev); -- 2.53.0