diff options
| author | Heikki Krogerus <heikki.krogerus@linux.intel.com> | 2021-12-21 17:03:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-21 16:30:53 +0100 |
| commit | 3f345e907a8e7c56fdebf7231cd67afc85d02aaa (patch) | |
| tree | 231b9cba0f3c6b43b78d814fd0c43da97ec53851 /drivers/net/ethernet/intel/igc | |
| parent | e4844092581ceec22489b66c42edc88bc6079783 (diff) | |
usb: typec: ucsi: Only check the contract if there is a connection
The driver must make sure there is an actual connection
before checking details about the USB Power Delivery
contract. Those details are not valid unless there is a
connection.
This fixes NULL pointer dereference that is caused by an
attempt to register bogus partner alternate mode that the
firmware on some platform may report before the actual
connection.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215117
Fixes: 6cbe4b2d5a3f ("usb: typec: ucsi: Check the partner alt modes always if there is PD contract")
Reported-by: Chris Hixon <linux-kernel-bugs@hixontech.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/eb34f98f-00ef-3238-2daa-80481116035d@leemhuis.info/
Link: https://lore.kernel.org/r/20211221140352.45501-1-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/ethernet/intel/igc')
0 files changed, 0 insertions, 0 deletions