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Author ronaldoussoren
Recipients baikie, jramnani, ned.deily, python-dev, ronaldoussoren, vstinner
Date 2020-10-19.20:27:56
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <>
The issue is still present with python 3.9 and macOS 10.15 as well as current macOS 11 betas.

The following python scriptlet reproduces the issue:

# ---
import socket
sd1, sd2 = socket.socketpair()

sd1.sendmsg([b"hello"], [(socket.SOL_SOCKET, socket.SCM_RIGHTS, b"")])
# ---

I think the attached file "repro.c" does the same in C, it also fails with "recvmsg: Cannot allocate memory".

I've filed an issue for this with Apple: FB8813140.  I filed it from an Arm Mac system, with some luck this will help to get attention :-)
Date User Action Args
2020-10-19 20:27:56ronaldoussorensetrecipients: + ronaldoussoren, vstinner, baikie, ned.deily, python-dev, jramnani
2020-10-19 20:27:56ronaldoussorensetmessageid: <>
2020-10-19 20:27:56ronaldoussorenlinkissue24725 messages
2020-10-19 20:27:56ronaldoussorencreate