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GetKeyboardEvents: Reject out-of-range keycodes (bug #12528)

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We can only deal with keycodes between 8 and 255, so make sure that we never
accept anything out of this range.
(cherry picked from commit 0e800ca465)
This commit is contained in:
Daniel Stone 2007-09-23 12:43:31 +03:00
parent 35bf7c738a
commit f3a5d67688
1 changed files with 4 additions and 0 deletions
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4
dix/getevents.c
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@ -409,6 +409,7 @@ GetKeyboardValuatorEvents(xEvent *events, DeviceIntPtr pDev, int type,
if (!events)
return 0;
/* DO NOT WANT */
if (type != KeyPress && type != KeyRelease)
return 0;
@ -416,6 +417,9 @@ GetKeyboardValuatorEvents(xEvent *events, DeviceIntPtr pDev, int type,
(pDev->coreEvents && !inputInfo.keyboard->key))
return 0;
if (key_code < 8 || key_code > 255)
return 0;
if (pDev->coreEvents)
numEvents = 2;
else