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| author | José Roberto de Souza <jose.souza@intel.com> | 2020-01-30 02:24:48 +0300 |
|---|---|---|
| committer | Lyude Paul <lyude@redhat.com> | 2020-01-31 00:56:50 +0300 |
| commit | 8ccb5bf7619c6523e7a4384a84b72e7be804298c (patch) | |
| tree | f615ee0104a76fb10019df836579d65f248cf88f /tools/perf/scripts/python/stackcollapse.py | |
| parent | cf913e9683273f2640501094fa63a67e29f437b3 (diff) | |
| download | linux-8ccb5bf7619c6523e7a4384a84b72e7be804298c.tar.xz | |
drm/mst: Fix possible NULL pointer dereference in drm_dp_mst_process_up_req()
According to DP specification, DP_SINK_EVENT_NOTIFY is also a
broadcast message but as this function only handles
DP_CONNECTION_STATUS_NOTIFY I will only make the static
analyzer that caught this issue happy by not calling
drm_dp_get_mst_branch_device_by_guid() with a NULL guid, causing
drm_dp_mst_process_up_req() to return in the "if (!mstb)" right
bellow.
Fixes: 9408cc94eb04 ("drm/dp_mst: Handle UP requests asynchronously")
Cc: Lyude Paul <lyude@redhat.com>
Cc: Sean Paul <sean@poorly.run>
Cc: <stable@vger.kernel.org> # v5.5+
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
[added cc to stable]
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200129232448.84704-1-jose.souza@intel.com
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions