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From: "bruno at clisp dot org" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug malloc/17924] 'free' should not set errno
Date: Sat, 19 Dec 2020 19:30:51 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D17924

Bruno Haible <bruno at clisp dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bruno at clisp dot org

--- Comment #2 from Bruno Haible <bruno at clisp dot org> ---
Created attachment 13064
  --> https://sourceware.org/bugzilla/attachment.cgi?id=3D13064&action=3Ded=
it
Test case for one of the scenarios

Find attached a test case for one of the scenarios, namely when
  1. free() invokes munmap() and
  2. munmap()'s attempt to split a VMA fails due to /proc/sys/vm/max_map_co=
unt.

It fails on glibc 2.3.2, 2.23, 2.28, 2.32,
as well as on musl libc 1.1.24.

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