Mirrorlandia_minetest/minetest
1
0
Fork 1
mirror of https://github.com/minetest/minetest.git synced 2024-12-28 00:47:29 +01:00
Code Issues Packages Projects Releases Wiki Activity

Settings: Fix crash on exit due to group double-free

Browse Source
This commit is contained in:
SmallJoker 2020-09-21 19:10:44 +02:00
parent 49117de476
commit e7f33ee2f1
1 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/settings.cpp
View File

@ -824,13 +824,21 @@ bool Settings::setDefault(const std::string &name, const std::string &value)
bool Settings::setGroup(const std::string &name, Settings *group)
{
return setEntry(name, &group, true, false);
// Settings must own the group pointer
// avoid double-free by copying the source
Settings *copy = new Settings();
*copy = *group;
return setEntry(name, &copy, true, false);
}
bool Settings::setGroupDefault(const std::string &name, Settings *group)
{
return setEntry(name, &group, true, true);
// Settings must own the group pointer
// avoid double-free by copying the source
Settings *copy = new Settings();
*copy = *group;
return setEntry(name, &copy, true, true);
}