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From: "dmalcolm at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug analyzer/99193] Bogus "should have been deallocated with 'free'
 but was deallocated with 'realloc' [CWE-762]
 [-Werror=analyzer-mismatching-deallocation]"
Date: Thu, 25 Feb 2021 14:27:15 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99193

--- Comment #11 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
BTW, looking at the=20
  #pragma GCC diagnostic ignored "-Wanalyzer-null-argument"
at
https://github.com/libguestfs/libguestfs/blob/f19fd566f6387ce7e4d82409528c9=
dde374d25e0/df/main.c#L317
I'm guessing that this was due to PR analyzer/99196, due to the:

    name =3D strdup (drvs->uri.orig_uri);
    if (name =3D=3D NULL)
      error (EXIT_FAILURE, errno, "strdup");
    p =3D strrchr (name, '/');

where the analyzer didn't "know" that the error call would terminate the
program; so hopefully this is also fixed now.=