Commits
Mateusz Jurczyk committed 610281158a9
nfc: Ensure presence of required attributes in the activate_target handler [ Upstream commit a0323b979f81ad2deb2c8836eab506534891876a ] Check that the NFC_ATTR_TARGET_INDEX and NFC_ATTR_PROTOCOLS attributes (in addition to NFC_ATTR_DEVICE_INDEX) are provided by the netlink client prior to accessing them. This prevents potential unhandled NULL pointer dereference exceptions which can be triggered by malicious user-mode programs, if they omit one or both of these attributes. Signed-off-by: Mateusz Jurczyk <mjurczyk@google.com> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>