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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug gdb/31258] [gdb] ThreadSanitizer: heap-use-after-free in
 memmove
Date: Thu, 18 Jan 2024 14:27:39 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D31258

--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Tom de Vries from comment #0)
> When building gdb with O0 -fsanitize=3Dthread, and run test-case
> gdb.ada/uninitialized_vars.exp, I run into a heap-user-after-free:
> (gdb) info locals
> a =3D 0
> z =3D (a =3D> 1, b =3D> false, c =3D> 2.0)
> y =3D (a =3D> 184, c =3D> 9.18340949e-41, d =3D> -411009023)

This was with f39 aarch64, using gcc 13.

Also reproduced on openSUSE Tumbleweed x86_64, likewise using gcc 13.

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