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Mateusz Jurczyk authored
commit a0323b97 upstream. 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:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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