Issue 41396: pystate.c:_PyCrossInterpreterData_Release() does not clear py exception on error

classification

Title:	pystate.c:_PyCrossInterpreterData_Release() does not clear py exception on error
Type:	behavior	Stage:
Components:	Interpreter Core	Versions:	Python 3.8

process

Status:	open	Resolution:
Dependencies:		Superseder:
Assigned To:		Nosy List:	Tomasz Pytel
Priority:	normal	Keywords:

Created on 2020-07-25 15:27 by Tomasz Pytel, last changed 2020-07-25 15:27 by Tomasz Pytel.

Messages (1)
msg374270 - (view)	Author: Tomasz Pytel (Tomasz Pytel)	Date: 2020-07-25 15:27
The call to _PyInterpreterState_LookUpID() may generate a Python exception but it is not explicitly cleared on error and no indicator is returned to signal failure. This can lead to a "a function returned a result with an error set" fatal error, and does in fact do so in a case I encountered in Modules/_xxsubinterpreters.c:channel_destroy().

msg374270 - (view)

Author: Tomasz Pytel (Tomasz Pytel)

Date: 2020-07-25 15:27

The call to _PyInterpreterState_LookUpID() may generate a Python exception but it is not explicitly cleared on error and no indicator is returned to signal failure. This can lead to a "a function returned a result with an error set" fatal error, and does in fact do so in a case I encountered in Modules/_xxsubinterpreters.c:channel_destroy().

History
Date	User	Action	Args
2020-07-25 15:27:05	Tomasz Pytel	create