diff --git a/benchmarks/suites/syscall.xml b/benchmarks/suites/syscall.xml
index c253a3f..9f0afb0 100644
--- a/benchmarks/suites/syscall.xml
+++ b/benchmarks/suites/syscall.xml
@@ -50,3 +50,44 @@
   <args>AT_MULTI_PAGE_SIZES</args>
 </fn>
 
+<!-- mprotect tests -->
+<fn>
+  <name>BM_syscall_mmap_anon_mprotect_rw_to_rd</name>
+  <iterations>10</iterations>
+  <args>AT_All_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_anon_mprotect_rw_to_none</name>
+  <iterations>10</iterations>
+  <args>AT_All_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_anon_mprotect_rd_to_none</name>
+  <iterations>10</iterations>
+  <args>AT_All_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_file_mprotect_rw_to_rd</name>
+  <iterations>10</iterations>
+  <args>AT_All_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_file_mprotect_rw_to_none</name>
+  <iterations>10</iterations>
+  <args>AT_All_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_file_mprotect_none_to_rw</name>
+  <iterations>10</iterations>
+  <args>AT_All_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_file_mprotect_none_to_rd</name>
+  <iterations>10</iterations>
+  <args>AT_All_PAGE_SIZES</args>
+</fn>
+<fn>
+  <name>BM_syscall_mmap_file_mprotect_rd_to_none</name>
+  <iterations>10</iterations>
+  <args>AT_All_PAGE_SIZES</args>
+</fn>
diff --git a/benchmarks/syscall_mm_benchmark.cpp b/benchmarks/syscall_mm_benchmark.cpp
index 34ffa2e..04c4bea 100644
--- a/benchmarks/syscall_mm_benchmark.cpp
+++ b/benchmarks/syscall_mm_benchmark.cpp
@@ -38,6 +38,12 @@
   int64_t size;
 };
 
+struct MprotectParams {
+  int from_prot;
+  int to_prot;
+  int64_t size;
+};
+
 template <BenchmarkType type>
 void MmapBenchmarkImpl(benchmark::State& state, const struct MmapParams& params, int fd,
                        void* area = nullptr) {
@@ -307,3 +313,152 @@
   MadviseBenchmark(state, params, MADV_FREE);
 }
 BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_madvise_free, "AT_MULTI_PAGE_SIZES");
+
+void MprotectBenchmark(benchmark::State& state, const struct MprotectParams& params, void* addr) {
+  for (auto _ : state) {
+    state.PauseTiming();
+    /*
+     * Guarantee that physical memory pages are allocated for this region to prevent
+     * segmentation fault when using mprotect to change permissions.
+     */
+    if (params.from_prot & PROT_WRITE) {
+      MakeAllocationResident(addr, params.size, page_sz);
+    }
+    state.ResumeTiming();
+
+    if (mprotect(addr, params.size, params.to_prot) != 0) {
+      state.SkipWithError(android::base::StringPrintf("mprotect failed: %m"));
+      break;
+    }
+
+    state.PauseTiming();
+    // Revert back to the original protection
+    int res = mprotect(addr, params.size, params.from_prot);
+    state.ResumeTiming();
+    if (res != 0) {
+      state.SkipWithError(
+          android::base::StringPrintf("mprotect failed to revert to original prot: %m"));
+      break;
+    }
+  }
+}
+
+static void MprotectBenchmarkWithMmapAnon(benchmark::State& state,
+                                          const struct MprotectParams& params) {
+  void* addr = mmap(nullptr, params.size, params.from_prot, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
+  if (addr == MAP_FAILED) {
+    state.SkipWithError(android::base::StringPrintf("mmap failed: %m"));
+    return;
+  }
+
+  MprotectBenchmark(state, params, addr);
+
+  if (munmap(addr, params.size) != 0)
+    state.SkipWithError(android::base::StringPrintf("munmap failed: %m"));
+}
+
+static void BM_syscall_mmap_anon_mprotect_rw_to_rd(benchmark::State& state) {
+  struct MprotectParams params = {
+      .from_prot = PROT_READ | PROT_WRITE,
+      .to_prot = PROT_READ,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapAnon(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_mprotect_rw_to_rd, "AT_All_PAGE_SIZES");
+
+static void BM_syscall_mmap_anon_mprotect_rw_to_none(benchmark::State& state) {
+  struct MprotectParams params = {
+      .from_prot = PROT_READ | PROT_WRITE,
+      .to_prot = PROT_NONE,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapAnon(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_mprotect_rw_to_none, "AT_All_PAGE_SIZES");
+
+static void BM_syscall_mmap_anon_mprotect_rd_to_none(benchmark::State& state) {
+  struct MprotectParams params = {
+      .from_prot = PROT_READ,
+      .to_prot = PROT_NONE,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapAnon(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_anon_mprotect_rd_to_none, "AT_All_PAGE_SIZES");
+
+static void MprotectBenchmarkWithMmapFile(benchmark::State& state,
+                                          const struct MprotectParams& params) {
+  TemporaryFile tf;
+
+  if (tf.fd < 0) {
+    state.SkipWithError(android::base::StringPrintf("failed to create a temporary file: %m"));
+    return;
+  }
+
+  if (params.size > 0 && ftruncate(tf.fd, params.size)) {
+    state.SkipWithError(android::base::StringPrintf("ftruncate failed: %m"));
+    return;
+  }
+
+  void* addr = mmap(nullptr, params.size, params.from_prot, MAP_PRIVATE, tf.fd, 0);
+  if (addr == MAP_FAILED) {
+    state.SkipWithError(android::base::StringPrintf("mmap failed: %m"));
+    return;
+  }
+
+  MprotectBenchmark(state, params, addr);
+
+  if (munmap(addr, params.size) != 0)
+    state.SkipWithError(android::base::StringPrintf("munmap failed: %m"));
+}
+
+static void BM_syscall_mmap_file_mprotect_rw_to_rd(benchmark::State& state) {
+  struct MprotectParams params = {
+      .from_prot = PROT_READ | PROT_WRITE,
+      .to_prot = PROT_READ,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapFile(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_mprotect_rw_to_rd, "AT_All_PAGE_SIZES");
+
+static void BM_syscall_mmap_file_mprotect_rw_to_none(benchmark::State& state) {
+  struct MprotectParams params = {
+      .from_prot = PROT_READ | PROT_WRITE,
+      .to_prot = PROT_NONE,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapFile(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_mprotect_rw_to_none, "AT_All_PAGE_SIZES");
+
+static void BM_syscall_mmap_file_mprotect_none_to_rw(benchmark::State& state) {
+  struct MprotectParams params = {
+      .from_prot = PROT_NONE,
+      .to_prot = PROT_READ | PROT_WRITE,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapFile(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_mprotect_none_to_rw, "AT_All_PAGE_SIZES");
+
+static void BM_syscall_mmap_file_mprotect_none_to_rd(benchmark::State& state) {
+  struct MprotectParams params = {
+      .from_prot = PROT_NONE,
+      .to_prot = PROT_READ,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapFile(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_mprotect_none_to_rd, "AT_All_PAGE_SIZES");
+
+static void BM_syscall_mmap_file_mprotect_rd_to_none(benchmark::State& state) {
+  struct MprotectParams params = {
+      .from_prot = PROT_READ,
+      .to_prot = PROT_NONE,
+      .size = state.range(0),
+  };
+  MprotectBenchmarkWithMmapFile(state, params);
+}
+BIONIC_BENCHMARK_WITH_ARG(BM_syscall_mmap_file_mprotect_rd_to_none, "AT_All_PAGE_SIZES");