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Restore a check to stop scrolled lines becoming larger than total lines,

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fixes a crash reported by Thomas Sattler.
This commit is contained in:
nicm 2019-04-01 19:33:38 +00:00 committed by Nicholas Marriott
parent 92da105b58
commit 6d071c468c
1 changed files with 2 additions and 0 deletions
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2
grid.c
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@ -1284,6 +1284,8 @@ grid_reflow(struct grid *gd, u_int sx)
if (target->sy < gd->sy)
grid_reflow_add(target, gd->sy - target->sy);
gd->hsize = target->sy - gd->sy;
if (gd->hscrolled > gd->hsize)
gd->hscrolled = gd->hsize;
free(gd->linedata);
gd->linedata = target->linedata;
free(target);