patch 8.2.1259: empty group in 'tabline' may cause using an invalid pointer
Problem: Empty group in 'tabline' may cause using an invalid pointer.
Solution: Set the group start position. (closes #6505)
diff --git a/src/buffer.c b/src/buffer.c
index 40ca25d..54afb13 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -4229,12 +4229,19 @@
}
if (n == curitem && group_start_userhl == group_end_userhl)
{
+ // empty group
p = t;
l = 0;
- // do not use the highlighting from the removed group
for (n = groupitem[groupdepth] + 1; n < curitem; n++)
+ {
+ // do not use the highlighting from the removed group
if (item[n].type == Highlight)
item[n].type = Empty;
+ // adjust the start position of TabPage to the next
+ // item position
+ if (item[n].type == TabPage)
+ item[n].start = p;
+ }
}
}
if (l > item[groupitem[groupdepth]].maxwid)