linux-kernel - [PATCH 5.9 084/133] drm/v3d: Fix double free in v3d_submit_cl

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20201109125034.760072033@linuxfoundation.org>
Date:   Mon,  9 Nov 2020 13:55:46 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>,
        Maxime Ripard <maxime@...no.tech>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.9 084/133] drm/v3d: Fix double free in v3d_submit_cl_ioctl()

From: Dan Carpenter <dan.carpenter@...cle.com>

[ Upstream commit 897dbea6b716c0f2c5bcd4ba1eb4d809caba290c ]

Originally this error path used to leak "bin" but then we accidentally
applied two separate commits to fix it and ended up with a double free.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Maxime Ripard <maxime@...no.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20201026094905.GA1634423@mwanda
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/v3d/v3d_gem.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c
index 915f8bfdb58ca..182c586525eb8 100644
--- a/drivers/gpu/drm/v3d/v3d_gem.c
+++ b/drivers/gpu/drm/v3d/v3d_gem.c
@@ -568,7 +568,6 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
 		ret = v3d_job_init(v3d, file_priv, &bin->base,
 				   v3d_job_free, args->in_sync_bcl);
 		if (ret) {
-			kfree(bin);
 			v3d_job_put(&render->base);
 			kfree(bin);
 			return ret;
-- 
2.27.0