** Description changed:
- Any attributes set for local variables aren't exported to subshells
- correctly, resulting in incorrect behaviour.
+ [ 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}"
+ 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
+ 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
+ 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
```
+ [ Other Info ]
+
Upstream bug: https://github.com/ksh93/ksh/issues/465
- This has been fixed in Noble. Intending to backport to Jammy.
+ 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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