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author | Christian Brauner <christian.brauner@ubuntu.com> | 2019-09-20 10:30:06 +0200 |
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committer | Kees Cook <keescook@chromium.org> | 2019-10-10 14:35:48 -0700 |
commit | 223e660bc7638d126a0e4fbace4f33f2895788c4 (patch) | |
tree | acbf8f3083e346b8bb65d7f4389db608e02d0d20 /kernel/seccomp.c | |
parent | da0c9ea146cbe92b832f1b0f694840ea8eb33cce (diff) | |
download | lwn-223e660bc7638d126a0e4fbace4f33f2895788c4.tar.gz lwn-223e660bc7638d126a0e4fbace4f33f2895788c4.zip |
seccomp: avoid overflow in implicit constant conversion
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: 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>
Cc: stable@vger.kernel.org
Cc: linux-kselftest@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: bpf@vger.kernel.org
Reviewed-by: Tycho Andersen <tycho@tycho.ws>
Link: https://lore.kernel.org/r/20190920083007.11475-3-christian.brauner@ubuntu.com
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'kernel/seccomp.c')
0 files changed, 0 insertions, 0 deletions