diff options
| author | Sargun Dhillon <sargun@sargun.me> | 2019-12-29 09:24:49 +0300 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2020-01-03 00:03:42 +0300 |
| commit | 88c13f8bd71472fbab5338b01d99122908c77e53 (patch) | |
| tree | 05744afd8a844eb7d3c135832cf19e3a988d8722 | |
| parent | 771b894f2f3dfedc2ba5561731fffa0e39b1bbb6 (diff) | |
| download | linux-88c13f8bd71472fbab5338b01d99122908c77e53.tar.xz | |
selftests/seccomp: Zero out seccomp_notif
The seccomp_notif structure should be zeroed out prior to calling the
SECCOMP_IOCTL_NOTIF_RECV ioctl. Previously, the kernel did not check
whether these structures were zeroed out or not, so these worked.
This patch zeroes out the seccomp_notif data structure prior to calling
the ioctl.
Signed-off-by: Sargun Dhillon <sargun@sargun.me>
Reviewed-by: Tycho Andersen <tycho@tycho.ws>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
Link: https://lore.kernel.org/r/20191229062451.9467-1-sargun@sargun.me
Fixes: 6a21cc50f0c7 ("seccomp: add a return code to trap to userspace")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
| -rw-r--r-- | tools/testing/selftests/seccomp/seccomp_bpf.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c index 6944b898bb53..f53f14971bff 100644 --- a/tools/testing/selftests/seccomp/seccomp_bpf.c +++ b/tools/testing/selftests/seccomp/seccomp_bpf.c @@ -3278,6 +3278,7 @@ TEST(user_notification_signal) close(sk_pair[1]); + memset(&req, 0, sizeof(req)); EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0); EXPECT_EQ(kill(pid, SIGUSR1), 0); @@ -3296,6 +3297,7 @@ TEST(user_notification_signal) EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), -1); EXPECT_EQ(errno, ENOENT); + memset(&req, 0, sizeof(req)); EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0); resp.id = req.id; |