seccomp: remove duplicated failure logging

This consolidates the seccomp filter error logging path and adds more
details to the audit log.

Signed-off-by: Will Drewry <wad@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Eric Paris <eparis@redhat.com>

v18: make compat= permanent in the record
v15: added a return code to the audit_seccomp path by wad@chromium.org
     (suggested by eparis@redhat.com)
v*: original by keescook@chromium.org
Signed-off-by: James Morris <james.l.morris@oracle.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index af1de0f34eae..4b96415527b8 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -67,6 +67,7 @@
 #include <linux/syscalls.h>
 #include <linux/capability.h>
 #include <linux/fs_struct.h>
+#include <linux/compat.h>
 
 #include "audit.h"
 
@@ -2710,13 +2711,16 @@ void audit_core_dumps(long signr)
 	audit_log_end(ab);
 }
 
-void __audit_seccomp(unsigned long syscall)
+void __audit_seccomp(unsigned long syscall, long signr, int code)
 {
 	struct audit_buffer *ab;
 
 	ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_ANOM_ABEND);
-	audit_log_abend(ab, "seccomp", SIGKILL);
+	audit_log_abend(ab, "seccomp", signr);
 	audit_log_format(ab, " syscall=%ld", syscall);
+	audit_log_format(ab, " compat=%d", is_compat_task());
+	audit_log_format(ab, " ip=0x%lx", KSTK_EIP(current));
+	audit_log_format(ab, " code=0x%x", code);
 	audit_log_end(ab);
 }