linux-kernel - Re: [PATCH v2] checkkconfigsymbols.py: Forbid passing 'HEAD' to --commit

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Fri, 10 Sep 2021 11:13:08 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Ariel Marcovitch <arielmarcovitch@...il.com>
Cc:     Valentin Rothberg <valentinrothberg@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>
Subject: Re: [PATCH v2] checkkconfigsymbols.py: Forbid passing 'HEAD' to --commit

On Wed, Sep 1, 2021 at 11:52 PM Ariel Marcovitch
<arielmarcovitch@...il.com> wrote:
>
> As opposed to the --diff option, --commit can get ref names instead of
> commit hashes.
>
> When using the --commit option, the script resets the working directory
> to the commit before the given ref, by adding '~' to the end of the ref.
>
> However, the 'HEAD' ref is relative, and so when the working directory
> is reset to 'HEAD~', 'HEAD' points to what was 'HEAD~'. Then when the
> script resets to 'HEAD' it actually stays in the same commit. In this
> case, the script won't report any cases because there is no diff between
> the cases of the two refs.
>
> Prevent the user from using HEAD refs.
>
> A better solution might be to resolve the refs before doing the
> reset, but for now just disallow such refs.
>
> Signed-off-by: Ariel Marcovitch <arielmarcovitch@...il.com>
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
> ---
>  scripts/checkkconfigsymbols.py | 3 +++
>  1 file changed, 3 insertions(+)


Applied to linux-kbuild. Thanks.

> diff --git a/scripts/checkkconfigsymbols.py b/scripts/checkkconfigsymbols.py
> index b9b0f15e5880..c57c990c3244 100755
> --- a/scripts/checkkconfigsymbols.py
> +++ b/scripts/checkkconfigsymbols.py
> @@ -102,6 +102,9 @@ def parse_options():
>                       "continue.")
>
>      if args.commit:
> +        if args.commit.startswith('HEAD'):
> +            sys.exit("The --commit option can't use the HEAD ref")
> +
>          args.find = False
>
>      if args.ignore:
>
> base-commit: 087e856cfb76e9eef9a3a6e000854794f3c36e24
> --
> 2.25.1
>


-- 
Best Regards
Masahiro Yamada