diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hid/hid-core.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 53576e7c8bc..bc0bb213e77 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -58,6 +58,8 @@ struct hid_report *hid_register_report(struct hid_device *device, unsigned type, struct hid_report_enum *report_enum = device->report_enum + type; struct hid_report *report; + if (id >= HID_MAX_IDS) + return NULL; if (report_enum->report_id_hash[id]) return report_enum->report_id_hash[id]; @@ -379,9 +381,11 @@ static int hid_parser_global(struct hid_parser *parser, struct hid_item *item) case HID_GLOBAL_ITEM_TAG_REPORT_ID: parser->global.report_id = item_udata(item); - if (parser->global.report_id == 0) { - dbg_hid("report_id 0 is invalid\n"); - return -1; + if (parser->global.report_id == 0 || + parser->global.report_id >= HID_MAX_IDS) { + hid_err(parser->device, "report_id %u is invalid\n", + parser->global.report_id); + return -1; } return 0; @@ -551,7 +555,7 @@ static void hid_device_release(struct device *dev) for (i = 0; i < HID_REPORT_TYPES; i++) { struct hid_report_enum *report_enum = device->report_enum + i; - for (j = 0; j < 256; j++) { + for (j = 0; j < HID_MAX_IDS; j++) { struct hid_report *report = report_enum->report_id_hash[j]; if (report) hid_free_report(report); |