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-rw-r--r--drivers/hid/hid-core.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index e0b241bd3070..851fe54ea59e 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -288,6 +288,12 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign
offset = report->size;
report->size += parser->global.report_size * parser->global.report_count;
+ /* Total size check: Allow for possible report index byte */
+ if (report->size > (HID_MAX_BUFFER_SIZE - 1) << 3) {
+ hid_err(parser->device, "report is too long\n");
+ return -1;
+ }
+
if (!parser->local.usage_index) /* Ignore padding fields */
return 0;