From d91f3ab6ae8e94a96c1173efad50015b721bee73 Mon Sep 17 00:00:00 2001 From: Andrey Kleshchev Date: Sat, 24 Apr 2021 01:00:21 +0300 Subject: SL-15150 Crash at LLScrollColumnHeader::updateResizeBars Looks like mHeader is invalid yet mHeader->updateResizeBars() gets called, decided to validate column pointer --- indra/llui/llscrolllistcolumn.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'indra/llui/llscrolllistcolumn.cpp') diff --git a/indra/llui/llscrolllistcolumn.cpp b/indra/llui/llscrolllistcolumn.cpp index cc9ff7a487..82b0415624 100644 --- a/indra/llui/llscrolllistcolumn.cpp +++ b/indra/llui/llscrolllistcolumn.cpp @@ -257,7 +257,7 @@ void LLScrollColumnHeader::updateResizeBars() for (col = 0; col < mColumn->mParentCtrl->getNumColumns(); col++) { LLScrollListColumn* columnp = mColumn->mParentCtrl->getColumn(col); - if (columnp->mHeader && columnp->mHeader->canResize()) + if (columnp && columnp->mHeader && columnp->mHeader->canResize()) { num_resizable_columns++; } @@ -269,7 +269,7 @@ void LLScrollColumnHeader::updateResizeBars() for (col = 0; col < mColumn->mParentCtrl->getNumColumns(); col++) { LLScrollListColumn* columnp = mColumn->mParentCtrl->getColumn(col); - if (!columnp->mHeader) continue; + if (!columnp || !columnp->mHeader) continue; BOOL enable = num_resizable_columns >= 2 && num_resizers_enabled < (num_resizable_columns - 1) && columnp->mHeader->canResize(); columnp->mHeader->enableResizeBar(enable); if (enable) -- cgit v1.2.3