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usb: typec: Make sure an alt mode exist before getting its partner
authorHeikki Krogerus <heikki.krogerus@linux.intel.com>
Wed, 12 Jun 2019 14:15:40 +0000 (17:15 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 12 Jun 2019 15:13:02 +0000 (17:13 +0200)
commit5f54a85db5df67df8161739a4b2f9c2b7ab219fe
tree527ddbb225b264ec03b33217e0c89b67c4bab33ftree
parentc2ed3d474fac61ab46468c5365f84f59dc6e173fcommit | diff
usb: typec: Make sure an alt mode exist before getting its partner

Adding check to typec_altmode_get_partner() to prevent
potential NULL pointer dereference.

Reported-by: Vladimir Yerilov <openmindead@gmail.com>
Fixes: ad74b8649bea ("usb: typec: ucsi: Preliminary support for alternate modes")
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/typec/bus.c diff | blob | history
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