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| author | Heikki Krogerus <heikki.krogerus@linux.intel.com> | 2020-03-11 16:00:05 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-12 11:34:52 +0300 |
| commit | d16e7b62c5adcd13832c6b0ba364c3468d21b856 (patch) | |
| tree | 6f4f81a59a455ebfd6f0802b695442ef97d5977d /tools/perf/scripts/python/stackcollapse.py | |
| parent | b63e48fb50e1ca71db301ca9082befa6f16c55c4 (diff) | |
| download | linux-d16e7b62c5adcd13832c6b0ba364c3468d21b856.tar.xz | |
usb: typec: ucsi: displayport: Fix NULL pointer dereference
If the registration of the DisplayPort was not successful,
or if the port does not support DisplayPort alt mode in the
first place, the function ucsi_displayport_remove_partner()
will fail with NULL pointer dereference when it attempts to
access the driver data.
Adding a check to the function to make sure there really is
driver data for the device before modifying it.
Fixes: af8622f6a585 ("usb: typec: ucsi: Support for DisplayPort alt mode")
Reported-by: Andrea Gagliardi La Gala <andrea.lagala@gmail.com>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=206365
Cc: stable@vger.kernel.org
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20200311130006.41288-2-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions