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seccomp: Add missing compat_ioctl for notify

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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: 6a21cc50f0 ("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>
This commit is contained in:
Sven Schnelle
2020-03-10 13:33:32 +01:00
committed by Kees Cook
parent 51891498f2
commit 3db81afd99
1 changed files with 1 additions and 0 deletions
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kernel/seccomp.c
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@@ -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)