** Description changed:
[ Impact ]
Any attributes set for local variables aren't exported to subshells
correctly, resulting in incorrect behaviour in the subshells.
This is due to a bug in that, the attributes from the parent aren't
copied to the subshells and thus not inherited.
[ Test Plan ]
A reproducer:
```bash
#!/bin/ksh
function called_function_ext {
echo "In function_ext: int_typeset_declared_in_func_exported:
${int_typeset_declared_in_func_exported}"
}
function call_from_main {
typeset -i int_typeset_declared_in_func_exported=444
export int_typeset_declared_in_func_exported
echo "In call_from_main: int_typeset_declared_in_func_exported:
${int_typeset_declared_in_func_exported}"
called_function_ext
}
call_from_main
```
It outputs:
```
In call_from_main: int_typeset_declared_in_func_exported: 444
In function_ext: int_typeset_declared_in_func_exported: 3421236
``
Whereas correct output should be:
```
In call_from_main: int_typeset_declared_in_func_exported: 444
In function_ext: int_typeset_declared_in_func_exported: 444
```
[ Where problems could occur ]
- Shell's behaviour might be different, or can't even startup in the worst
- case.
+ Shell's behaviour might be different, or it can't even startup in the
+ worst case.
+
+ Potentially attributes might be set incorrectly in the subshells and
+ still exhibit incorrect behaviour.
[ Other Info ]
Upstream bug: https://github.com/ksh93/ksh/issues/465
Upstream fix:
https://github.com/ksh93/ksh/commit/870ca92a0821775a400445126bc87ade6b203f94
This works as expected on Noble which has a new version of ksh that
contains this fix.
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https://bugs.launchpad.net/bugs/2110614
Title:
[SRU] Honour attributes for local assignments in subshells
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