PKGBUILDs/extra/chromium/0002-Fix-sandbox-Aw-snap-for-sycalls-403-and-407.patch

From 9776f3f02a40570e72a7fe650a94ef156b4fb872 Mon Sep 17 00:00:00 2001
From: Kevin Mihelich <kevin@archlinuxarm.org>
Date: Tue, 2 Feb 2021 13:58:21 -0700
Subject: [PATCH 2/4] Fix sandbox 'Aw snap' for sycalls 403 and 407

---
 sandbox/linux/seccomp-bpf-helpers/baseline_policy.cc     | 9 ++++++++-
 .../syscall_parameters_restrictions_unittests.cc         | 6 ++++++
 sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc        | 6 ++++++
 sandbox/linux/system_headers/arm_linux_syscalls.h        | 8 ++++++++
 sandbox/linux/system_headers/mips_linux_syscalls.h       | 8 ++++++++
 5 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/sandbox/linux/seccomp-bpf-helpers/baseline_policy.cc b/sandbox/linux/seccomp-bpf-helpers/baseline_policy.cc
index 5242bde81fbf..bef4cf1d24e0 100644
--- a/sandbox/linux/seccomp-bpf-helpers/baseline_policy.cc
+++ b/sandbox/linux/seccomp-bpf-helpers/baseline_policy.cc
@@ -159,7 +159,14 @@ ResultExpr EvaluateSyscallImpl(int fs_denied_errno,
     return Allow();
 #endif
 
-  if (sysno == __NR_clock_gettime || sysno == __NR_clock_nanosleep) {
+  if (sysno == __NR_clock_gettime || sysno == __NR_clock_nanosleep
+#if defined(__NR_clock_gettime64)
+                                  || sysno == __NR_clock_gettime64
+#endif
+#if defined(__NR_clock_nanosleep_time64)
+                                  || sysno == __NR_clock_nanosleep_time64
+#endif
+  ) {
     return RestrictClockID();
   }
 
diff --git a/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions_unittests.cc b/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions_unittests.cc
index 4bbfc7e53b6f..540149b67d95 100644
--- a/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions_unittests.cc
+++ b/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions_unittests.cc
@@ -61,6 +61,12 @@ class RestrictClockIdPolicy : public bpf_dsl::Policy {
       case __NR_clock_gettime:
       case __NR_clock_getres:
       case __NR_clock_nanosleep:
+#if defined(__NR_clock_nanosleep_time64)
+      case __NR_clock_nanosleep_time64:
+#endif
+#if defined(__NR_clock_gettime64)
+      case __NR_clock_gettime64:
+#endif
         return RestrictClockID();
       default:
         return Allow();
diff --git a/sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc b/sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc
index f40d436edfbd..c712b00f6179 100644
--- a/sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc
+++ b/sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc
@@ -39,6 +39,12 @@ bool SyscallSets::IsAllowedGettime(int sysno) {
                                 // filtered by RestrictClokID().
     case __NR_clock_gettime:    // Parameters filtered by RestrictClockID().
     case __NR_clock_nanosleep:  // Parameters filtered by RestrictClockID().
+#if defined(__NR_clock_gettime64)
+    case __NR_clock_gettime64:  // Parameters filtered by RestrictClockID().
+#endif
+#if defined(__NR_clock_nanosleep_time64)
+    case __NR_clock_nanosleep_time64:  // Parameters filtered by RestrictClockID().
+#endif
     case __NR_clock_settime:    // Privileged.
 #if defined(__i386__) || \
     (defined(ARCH_CPU_MIPS_FAMILY) && defined(ARCH_CPU_32_BITS))
diff --git a/sandbox/linux/system_headers/arm_linux_syscalls.h b/sandbox/linux/system_headers/arm_linux_syscalls.h
index 85e2110b4c29..c39c22b5114d 100644
--- a/sandbox/linux/system_headers/arm_linux_syscalls.h
+++ b/sandbox/linux/system_headers/arm_linux_syscalls.h
@@ -1441,6 +1441,14 @@
 #define __NR_io_pgetevents (__NR_SYSCALL_BASE+399)
 #endif
 
+#if !defined(__NR_clock_gettime64)
+#define __NR_clock_gettime64 (__NR_SYSCALL_BASE+403)
+#endif
+
+#if !defined(__NR_clock_nanosleep_time64)
+#define __NR_clock_nanosleep_time64 (__NR_SYSCALL_BASE+407)
+#endif
+
 // ARM private syscalls.
 #if !defined(__ARM_NR_BASE)
 #define __ARM_NR_BASE (__NR_SYSCALL_BASE + 0xF0000)
diff --git a/sandbox/linux/system_headers/mips_linux_syscalls.h b/sandbox/linux/system_headers/mips_linux_syscalls.h
index ddbf97f3d8b5..fa01b3bbc668 100644
--- a/sandbox/linux/system_headers/mips_linux_syscalls.h
+++ b/sandbox/linux/system_headers/mips_linux_syscalls.h
@@ -1433,4 +1433,12 @@
 #define __NR_memfd_create (__NR_Linux + 354)
 #endif
 
+#if !defined(__NR_clock_gettime64)
+#define __NR_clock_gettime64 (__NR_Linux + 403)
+#endif
+
+#if !defined(__NR_clock_nanosleep_time64)
+#define __NR_clock_nanosleep_time64 (__NR_Linux + 407)
+#endif
+
 #endif  // SANDBOX_LINUX_SYSTEM_HEADERS_MIPS_LINUX_SYSCALLS_H_
-- 
2.30.1