diff options
| author | Colin Ian King <colin.king@canonical.com> | 2021-02-15 19:39:21 +0300 |
|---|---|---|
| committer | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2021-02-17 21:00:06 +0300 |
| commit | 50ab1ffd7c41c5c7759b62fb42d3006b751bb12b (patch) | |
| tree | 4f22d1a69591a58271620dfe96f82c3437ba5c92 /drivers/hid | |
| parent | 5fb52551248f54ddc8f72bc252661468b603cfcc (diff) | |
| download | linux-50ab1ffd7c41c5c7759b62fb42d3006b751bb12b.tar.xz | |
HID: playstation: fix array size comparison (off-by-one)
The comparison of value with the array size ps_gamepad_hat_mapping
appears to be off-by-one. Fix this by using >= rather than > for the
size comparison.
Addresses-Coverity: ("Out-of-bounds read")
Fixes: bc2e15a9a022 ("HID: playstation: initial DualSense USB support.")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-playstation.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c index f279064e74a5..3b6f42155e21 100644 --- a/drivers/hid/hid-playstation.c +++ b/drivers/hid/hid-playstation.c @@ -845,7 +845,7 @@ static int dualsense_parse_report(struct ps_device *ps_dev, struct hid_report *r input_report_abs(ds->gamepad, ABS_RZ, ds_report->rz); value = ds_report->buttons[0] & DS_BUTTONS0_HAT_SWITCH; - if (value > ARRAY_SIZE(ps_gamepad_hat_mapping)) + if (value >= ARRAY_SIZE(ps_gamepad_hat_mapping)) value = 8; /* center */ input_report_abs(ds->gamepad, ABS_HAT0X, ps_gamepad_hat_mapping[value].x); input_report_abs(ds->gamepad, ABS_HAT0Y, ps_gamepad_hat_mapping[value].y); |