diff options
Diffstat (limited to 'unix/tclUnixInit.c')
| -rw-r--r-- | unix/tclUnixInit.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/unix/tclUnixInit.c b/unix/tclUnixInit.c index a798ccb..5111746 100644 --- a/unix/tclUnixInit.c +++ b/unix/tclUnixInit.c @@ -1092,9 +1092,19 @@ TclpGetCStackParams( if (stackGrowsDown) { tsdPtr->stackBound = (int *) ((char *)tsdPtr->outerVarPtr - stackSize); + if (tsdPtr->stackBound > tsdPtr->outerVarPtr) { + /* Overflow, that should never happen, just set it to NULL. + * See [Bug #3166410] */ + tsdPtr->stackBound = NULL; + } } else { tsdPtr->stackBound = (int *) ((char *)tsdPtr->outerVarPtr + stackSize); + if (tsdPtr->stackBound < tsdPtr->outerVarPtr) { + /* Overflow, that should never happen, just set it to NULL. + * See [Bug #3166410] */ + tsdPtr->stackBound = NULL; + } } } |