From: Tycho Andersen <tycho@tycho.ws>
To: Christian Brauner <christian.brauner@ubuntu.com>
Cc: keescook@chromium.org, luto@amacapital.net, jannh@google.com,
wad@chromium.org, shuah@kernel.org, ast@kernel.org,
daniel@iogearbox.net, kafai@fb.com, songliubraving@fb.com,
yhs@fb.com, linux-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org, netdev@vger.kernel.org,
bpf@vger.kernel.org, Tyler Hicks <tyhicks@canonical.com>,
stable@vger.kernel.org
Subject: Re: [PATCH v2 2/3] seccomp: avoid overflow in implicit constant conversion
Date: Fri, 20 Sep 2019 10:47:53 +0200 [thread overview]
Message-ID: <20190920084753.GA16893@cisco> (raw)
In-Reply-To: <20190920083007.11475-3-christian.brauner@ubuntu.com>
On Fri, Sep 20, 2019 at 10:30:06AM +0200, Christian Brauner wrote:
> USER_NOTIF_MAGIC is assigned to int variables in this test so set it to INT_MAX
> to avoid warnings:
>
> seccomp_bpf.c: In function ‘user_notification_continue’:
> seccomp_bpf.c:3088:26: warning: overflow in implicit constant conversion [-Woverflow]
> #define USER_NOTIF_MAGIC 116983961184613L
> ^
> seccomp_bpf.c:3572:15: note: in expansion of macro ‘USER_NOTIF_MAGIC’
> resp.error = USER_NOTIF_MAGIC;
> ^~~~~~~~~~~~~~~~
>
> Fixes: 6a21cc50f0c7 ("seccomp: add a return code to trap to userspace")
> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
> Reviewed-by: Tyler Hicks <tyhicks@canonical.com>
> Cc: Kees Cook <keescook@chromium.org>
> Cc: Andy Lutomirski <luto@amacapital.net>
> Cc: Will Drewry <wad@chromium.org>
> Cc: Shuah Khan <shuah@kernel.org>
> Cc: Alexei Starovoitov <ast@kernel.org>
> Cc: Daniel Borkmann <daniel@iogearbox.net>
> Cc: Martin KaFai Lau <kafai@fb.com>
> Cc: Song Liu <songliubraving@fb.com>
> Cc: Yonghong Song <yhs@fb.com>
> Cc: Tycho Andersen <tycho@tycho.ws>
You can also add,
Reviewed-by: Tycho Andersen <tycho@tycho.ws>
for this one.
Tycho
next prev parent reply other threads:[~2019-09-20 8:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-20 8:30 [PATCH v2 0/3] seccomp: continue syscall from notifier Christian Brauner
2019-09-20 8:30 ` [PATCH v2 1/3] seccomp: add SECCOMP_USER_NOTIF_FLAG_CONTINUE Christian Brauner
2019-10-10 21:45 ` Kees Cook
2019-10-11 9:46 ` Christian Brauner
2019-09-20 8:30 ` [PATCH v2 2/3] seccomp: avoid overflow in implicit constant conversion Christian Brauner
2019-09-20 8:47 ` Tycho Andersen [this message]
2019-09-20 8:30 ` [PATCH v2 3/3] seccomp: test SECCOMP_USER_NOTIF_FLAG_CONTINUE Christian Brauner
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