From: Dan Carpenter <dan.carpenter@oracle.com>
To: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <sean@poorly.run>, David Airlie <airlied@linux.ie>,
Daniel Vetter <daniel@ffwll.ch>,
linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
freedreno@lists.freedesktop.org, kernel-janitors@vger.kernel.org
Subject: [PATCH 1/2] drm/msm: fix potential NULL dereference in cleanup
Date: Wed, 13 Oct 2021 11:11:33 +0300 [thread overview]
Message-ID: <20211013081133.GF6010@kili> (raw)
The "msm_obj->node" list needs to be initialized earlier so that the
list_del() in msm_gem_free_object() doesn't experience a NULL pointer
dereference.
Fixes: 6ed0897cd800 ("drm/msm: Fix debugfs deadlock")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
drivers/gpu/drm/msm/msm_gem.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 40a9863f5951..49185d524be3 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -1132,6 +1132,7 @@ static int msm_gem_new_impl(struct drm_device *dev,
msm_obj->flags = flags;
msm_obj->madv = MSM_MADV_WILLNEED;
+ INIT_LIST_HEAD(&msm_obj->node);
INIT_LIST_HEAD(&msm_obj->vmas);
*obj = &msm_obj->base;
--
2.20.1
next reply other threads:[~2021-10-13 8:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-13 8:11 Dan Carpenter [this message]
2021-10-13 8:13 ` [PATCH 2/2] drm/msm: uninitialized variable in msm_gem_import() Dan Carpenter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211013081133.GF6010@kili \
--to=dan.carpenter@oracle.com \
--cc=airlied@linux.ie \
--cc=daniel@ffwll.ch \
--cc=dri-devel@lists.freedesktop.org \
--cc=freedreno@lists.freedesktop.org \
--cc=kernel-janitors@vger.kernel.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=robdclark@gmail.com \
--cc=sean@poorly.run \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.