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authorAKASHI Takahiro <takahiro.akashi@linaro.org>2014-07-04 08:28:31 +0100
committerKees Cook <keescook@google.com>2016-04-08 12:32:01 -0700
commitce07f946522327284e932e31ffb6636d36c14da8 (patch)
tree65be584924e7674f2549acc23085070cc44ffff1
parenta0b06047bffc40d9399055ff39af2ba297c8bf4e (diff)
downloadqcom-msm-v3.10-ce07f946522327284e932e31ffb6636d36c14da8.tar.gz
BACKPORT: arm64: audit: Add audit hook in syscall_trace_enter/exit()
This patch adds auditing functions on entry to or exit from every system call invocation. Acked-by: Richard Guy Briggs <rgb@redhat.com> Acked-by Will Deacon <will.deacon@arm.com> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Bug: 28020023 Patchset: seccomp (cherry picked from kernel/msm commit 4f310329852098cbac19bd3bb1bddfa8f71e4ed9) Signed-off-by: Kees Cook <keescook@google.com> Change-Id: I927981d07cce904e10184348cc90dc750c8a1625
-rw-r--r--arch/arm64/kernel/ptrace.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index 7c8e809bdbd..161e41ce46b 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -19,6 +19,7 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <linux/audit.h>
#include <linux/compat.h>
#include <linux/kernel.h>
#include <linux/sched.h>
@@ -39,6 +40,7 @@
#include <asm/compat.h>
#include <asm/debug-monitors.h>
#include <asm/pgtable.h>
+#include <asm/syscall.h>
#include <asm/traps.h>
#include <asm/system_misc.h>
@@ -1111,11 +1113,16 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
trace_sys_enter(regs, regs->syscallno);
+ audit_syscall_entry(syscall_get_arch(), regs->syscallno,
+ regs->orig_x0, regs->regs[1], regs->regs[2], regs->regs[3]);
+
return regs->syscallno;
}
asmlinkage void syscall_trace_exit(struct pt_regs *regs)
{
+ audit_syscall_exit(regs);
+
if (test_thread_flag(TIF_SYSCALL_TRACEPOINT))
trace_sys_exit(regs, regs_return_value(regs));