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 16E9A43ADF for ; Wed, 15 Nov 2023 20:57:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ZJ/CpBzM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B92AFC4E778; Wed, 15 Nov 2023 20:57:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1700081834; bh=ghHw5Qo7wTOehKxGugc42RaoDx9YKVZQbivGs9Bb18Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZJ/CpBzMtf41X1KfBhSISPNXqu6HgwXZM7JLFqqg72dgQ6/7x97CCvXLZ1DrKKzc1 cpL2uc8h95NAr46k7+n34VHSsyH8ajDidvjcTpK3LtHFDr639V0+iJgva5bK593QEL NcXw+wWPdETWZ1Dw0VDm6VHoFaE220kw/hl6bVYI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Katya Orlova , Hans Verkuil , Sasha Levin Subject: [PATCH 5.10 155/191] media: s3c-camif: Avoid inappropriate kfree() Date: Wed, 15 Nov 2023 15:47:10 -0500 Message-ID: <20231115204653.791924660@linuxfoundation.org> X-Mailer: git-send-email 2.42.1 In-Reply-To: <20231115204644.490636297@linuxfoundation.org> References: <20231115204644.490636297@linuxfoundation.org> User-Agent: quilt/0.67 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 5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Katya Orlova [ Upstream commit 61334819aca018c3416ee6c330a08a49c1524fc3 ] s3c_camif_register_video_node() works with video_device structure stored as a field of camif_vp, so it should not be kfreed. But there is video_device_release() on error path that do it. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: babde1c243b2 ("[media] V4L: Add driver for S3C24XX/S3C64XX SoC series camera interface") Signed-off-by: Katya Orlova Signed-off-by: Hans Verkuil Signed-off-by: Sasha Levin --- drivers/media/platform/s3c-camif/camif-capture.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/s3c-camif/camif-capture.c b/drivers/media/platform/s3c-camif/camif-capture.c index 9ca49af29542d..a3ba72a08daec 100644 --- a/drivers/media/platform/s3c-camif/camif-capture.c +++ b/drivers/media/platform/s3c-camif/camif-capture.c @@ -1132,12 +1132,12 @@ int s3c_camif_register_video_node(struct camif_dev *camif, int idx) ret = vb2_queue_init(q); if (ret) - goto err_vd_rel; + return ret; vp->pad.flags = MEDIA_PAD_FL_SINK; ret = media_entity_pads_init(&vfd->entity, 1, &vp->pad); if (ret) - goto err_vd_rel; + return ret; video_set_drvdata(vfd, vp); @@ -1170,8 +1170,6 @@ int s3c_camif_register_video_node(struct camif_dev *camif, int idx) v4l2_ctrl_handler_free(&vp->ctrl_handler); err_me_cleanup: media_entity_cleanup(&vfd->entity); -err_vd_rel: - video_device_release(vfd); return ret; } -- 2.42.0