Ivo Ivanov : dinput: Prevent a potential array overflow error during the conversion from spherical to Cartesian coordinates.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 29894e1c9a15bd81ea84c4e3082e8e8ac8c01c85
URL:    https://gitlab.winehq.org/wine/wine/-/commit/29894e1c9a15bd81ea84c4e3082e8e8...

Author: Ivo Ivanov <logos128(a)gmail.com>
Date:   Tue Aug  9 02:21:22 2022 +0300

dinput: Prevent a potential array overflow error during the conversion from spherical to Cartesian coordinates.

Signed-off-by: Ivo Ivanov <logos128(a)gmail.com>

---

 dlls/dinput/joystick_hid.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dlls/dinput/joystick_hid.c b/dlls/dinput/joystick_hid.c
index ebebbee6eb2..3ea15009d8f 100644
--- a/dlls/dinput/joystick_hid.c
+++ b/dlls/dinput/joystick_hid.c
@@ -2350,7 +2350,8 @@ static void convert_directions_from_spherical( const DIEFFECT *in, DIEFFECT *out
             tmp = cos( in->rglDirection[i - 1] * M_PI / 18000 ) * 10000;
             for (j = 0; j < i; ++j)
                 out->rglDirection[j] = round( out->rglDirection[j] * tmp / 10000.0 );
-            out->rglDirection[i] = sin( in->rglDirection[i - 1] * M_PI / 18000 ) * 10000;
+            if (i < in->cAxes)
+                out->rglDirection[i] = sin( in->rglDirection[i - 1] * M_PI / 18000 ) * 10000;
         }
         out->cAxes = in->cAxes;
         break;