From 3db81afd99494a33f1c3839103f0429c8f30cb9d Mon Sep 17 00:00:00 2001
From: Sven Schnelle <svens@linux.ibm.com>
Date: Tue, 10 Mar 2020 13:33:32 +0100
Subject: [PATCH] seccomp: Add missing compat_ioctl for notify
Git-commit: 3db81afd99494a33f1c3839103f0429c8f30cb9d
Patch-mainline: v5.7-rc1
References: git-fixes
Executing the seccomp_bpf testsuite under a 64-bit kernel with 32-bit
userland (both s390 and x86) doesn't work because there's no compat_ioctl
handler defined. Add the handler.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Fixes: 6a21cc50f0c7 ("seccomp: add a return code to trap to userspace")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200310123332.42255-1-svens@linux.ibm.com
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
kernel/seccomp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index 29022c1bbe18..ec5c606bc3a1 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -1225,6 +1225,7 @@ static const struct file_operations seccomp_notify_ops = {
.poll = seccomp_notify_poll,
.release = seccomp_notify_release,
.unlocked_ioctl = seccomp_notify_ioctl,
+ .compat_ioctl = seccomp_notify_ioctl,
};
static struct file *init_listener(struct seccomp_filter *filter)
--
2.16.4