diff options
| author | Jiri Kosina | 2013-09-04 12:06:25 +0200 |
|---|---|---|
| committer | Jiri Kosina | 2013-09-04 12:06:58 +0200 |
| commit | 47ab1a2de42031021965b81cbab4f3b4c5696d07 (patch) | |
| tree | 292df51948f1afa0277108df3001462ae6a5e3b1 /drivers/hid | |
| parent | be67b68d52fa28b9b721c47bb42068f0c1214855 (diff) | |
| parent | 43622021d2e2b82ea03d883926605bdd0525e1d1 (diff) | |
Merge branch 'for-3.11/CVE-2013-2888' into for-3.12/upstream
This one didn't make it for 3.11 due to being applied too close
to release, queue it for 3.12 merge window.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-core.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index dcd60eb3d5ea..2ac13ca6edaa 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -63,6 +63,8 @@ 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]; @@ -404,8 +406,10 @@ 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) { - hid_err(parser->device, "report_id 0 is invalid\n"); + 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; @@ -575,7 +579,7 @@ static void hid_close_report(struct hid_device *device) 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); |