Commit 9d18e13e authored by Kees Cook's avatar Kees Cook Committed by Greg Kroah-Hartman

HID: check for NULL field when setting values

commit be67b68d52fa28b9b721c47bb42068f0c1214855 upstream.

Defensively check that the field to be worked on is not NULL.
Signed-off-by: default avatarKees Cook <keescook@chromium.org>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 735b7d0c
......@@ -999,7 +999,12 @@ EXPORT_SYMBOL_GPL(hid_output_report);
int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
{
unsigned size = field->report_size;
unsigned size;
if (!field)
return -1;
size = field->report_size;
hid_dump_input(field->report->device, field->usage + offset, value);
......
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