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| author | David S. Miller <davem@davemloft.net> | 2014-09-07 21:41:53 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-07 21:41:53 -0700 |
| commit | eb84d6b60491a3ca3d90d62ee5346b007770d40d (patch) | |
| tree | 22aadf9ada15e1ae5ba4c400aafab6f2541996e6 /drivers/hid/hid-magicmouse.c | |
| parent | 97a13e5289baa96eaddd06e61d277457d837af3a (diff) | |
| parent | d030671f3f261e528dc6e396a13f10859a74ae7c (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/hid/hid-magicmouse.c')
| -rw-r--r-- | drivers/hid/hid-magicmouse.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c index ecc2cbf300c..29a74c1efcb 100644 --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -290,6 +290,11 @@ static int magicmouse_raw_event(struct hid_device *hdev, if (size < 4 || ((size - 4) % 9) != 0) return 0; npoints = (size - 4) / 9; + if (npoints > 15) { + hid_warn(hdev, "invalid size value (%d) for TRACKPAD_REPORT_ID\n", + size); + return 0; + } msc->ntouches = 0; for (ii = 0; ii < npoints; ii++) magicmouse_emit_touch(msc, ii, data + ii * 9 + 4); @@ -307,6 +312,11 @@ static int magicmouse_raw_event(struct hid_device *hdev, if (size < 6 || ((size - 6) % 8) != 0) return 0; npoints = (size - 6) / 8; + if (npoints > 15) { + hid_warn(hdev, "invalid size value (%d) for MOUSE_REPORT_ID\n", + size); + return 0; + } msc->ntouches = 0; for (ii = 0; ii < npoints; ii++) magicmouse_emit_touch(msc, ii, data + ii * 8 + 6); |