// https://syzkaller.appspot.com/bug?id=1dda01d9ade0a0d0842b326586065897ccb8c086 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __NR_bpf #define __NR_bpf 321 #endif static unsigned long long procid; static __thread int clone_ongoing; static __thread int skip_segv; static __thread jmp_buf segv_env; static void segv_handler(int sig, siginfo_t* info, void* ctx) { if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) { exit(sig); } uintptr_t addr = (uintptr_t)info->si_addr; const uintptr_t prog_start = 1 << 20; const uintptr_t prog_end = 100 << 20; int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0; int valid = addr < prog_start || addr > prog_end; if (skip && valid) { _longjmp(segv_env, 1); } exit(sig); } static void install_segv_handler(void) { struct sigaction sa; memset(&sa, 0, sizeof(sa)); sa.sa_handler = SIG_IGN; syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8); syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8); memset(&sa, 0, sizeof(sa)); sa.sa_sigaction = segv_handler; sa.sa_flags = SA_NODEFER | SA_SIGINFO; sigaction(SIGSEGV, &sa, NULL); sigaction(SIGBUS, &sa, NULL); } #define NONFAILING(...) \ ({ \ int ok = 1; \ __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); \ if (_setjmp(segv_env) == 0) { \ __VA_ARGS__; \ } else \ ok = 0; \ __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); \ ok; \ }) static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void use_temporary_dir(void) { char tmpdir_template[] = "./syzkaller.XXXXXX"; char* tmpdir = mkdtemp(tmpdir_template); if (!tmpdir) exit(1); if (chmod(tmpdir, 0777)) exit(1); if (chdir(tmpdir)) exit(1); } #define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off)) #define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len) \ *(type*)(addr) = \ htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | \ (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len)))) static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } #define FS_IOC_SETFLAGS _IOW('f', 2, long) static void remove_dir(const char* dir) { int iter = 0; DIR* dp = 0; const int umount_flags = MNT_FORCE | UMOUNT_NOFOLLOW; retry: while (umount2(dir, umount_flags) == 0) { } dp = opendir(dir); if (dp == NULL) { if (errno == EMFILE) { exit(1); } exit(1); } struct dirent* ep = 0; while ((ep = readdir(dp))) { if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue; char filename[FILENAME_MAX]; snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name); while (umount2(filename, umount_flags) == 0) { } struct stat st; if (lstat(filename, &st)) exit(1); if (S_ISDIR(st.st_mode)) { remove_dir(filename); continue; } int i; for (i = 0;; i++) { if (unlink(filename) == 0) break; if (errno == EPERM) { int fd = open(filename, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno != EBUSY || i > 100) exit(1); if (umount2(filename, umount_flags)) exit(1); } } closedir(dp); for (int i = 0;; i++) { if (rmdir(dir) == 0) break; if (i < 100) { if (errno == EPERM) { int fd = open(dir, O_RDONLY); if (fd != -1) { long flags = 0; if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) { } close(fd); continue; } } if (errno == EROFS) { break; } if (errno == EBUSY) { if (umount2(dir, umount_flags)) exit(1); continue; } if (errno == ENOTEMPTY) { if (iter < 100) { iter++; goto retry; } } } exit(1); } } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); for (int i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); if (symlink("/dev/binderfs", "./binderfs")) { } } static void setup_sysctl() { int cad_pid = fork(); if (cad_pid < 0) exit(1); if (cad_pid == 0) { for (;;) sleep(100); } char tmppid[32]; snprintf(tmppid, sizeof(tmppid), "%d", cad_pid); struct { const char* name; const char* data; } files[] = { {"/sys/kernel/debug/x86/nmi_longest_ns", "10000000000"}, {"/proc/sys/kernel/hung_task_check_interval_secs", "20"}, {"/proc/sys/net/core/bpf_jit_kallsyms", "1"}, {"/proc/sys/net/core/bpf_jit_harden", "0"}, {"/proc/sys/kernel/kptr_restrict", "0"}, {"/proc/sys/kernel/softlockup_all_cpu_backtrace", "1"}, {"/proc/sys/fs/mount-max", "100"}, {"/proc/sys/vm/oom_dump_tasks", "0"}, {"/proc/sys/debug/exception-trace", "0"}, {"/proc/sys/kernel/printk", "7 4 1 3"}, {"/proc/sys/kernel/keys/gc_delay", "1"}, {"/proc/sys/vm/oom_kill_allocating_task", "1"}, {"/sys/kernel/debug/failslab/task-filter", "Y"}, {"/sys/kernel/debug/fail_page_alloc/task-filter", "Y"}, {"/sys/kernel/debug/fail_futex/task-filter", "Y"}, {"/sys/kernel/debug/fail_usercopy/task-filter", "Y"}, {"/sys/kernel/debug/fail_make_request/task-filter", "Y"}, {"/sys/kernel/debug/fail_io_timeout/task-filter", "Y"}, {"/sys/kernel/debug/fail_iommufd/task-filter", "Y"}, {"/proc/sys/kernel/ctrl-alt-del", "0"}, {"/proc/sys/kernel/cad_pid", tmppid}, }; for (size_t i = 0; i < sizeof(files) / sizeof(files[0]); i++) { if (!write_file(files[i].name, files[i].data)) { } } kill(cad_pid, SIGKILL); while (waitpid(cad_pid, NULL, 0) != cad_pid) ; } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { char cwdbuf[32]; sprintf(cwdbuf, "./%d", iter); if (mkdir(cwdbuf, 0777)) exit(1); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { if (chdir(cwdbuf)) exit(1); setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { sleep_ms(10); if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } // perf_event_open arguments: [ // attr: ptr[in, perf_event_attr] { // perf_event_attr { // type: perf_event_type = 0x2 (4 bytes) // size: len = 0x80 (4 bytes) // config0: int8 = 0xbc (1 bytes) // config1: int8 = 0x0 (1 bytes) // config2: int8 = 0x0 (1 bytes) // config3: int8 = 0x0 (1 bytes) // config4: const = 0x0 (4 bytes) // sample_freq: int64 = 0x7 (8 bytes) // sample_type: perf_sample_type = 0xd8161 (8 bytes) // read_format: perf_read_format = 0x0 (8 bytes) // disabled: int64 = 0x0 (0 bytes) // inherit: int64 = 0x0 (0 bytes) // pinned: int64 = 0x0 (0 bytes) // exclusive: int64 = 0x0 (0 bytes) // exclude_user: int64 = 0x0 (0 bytes) // exclude_kernel: int64 = 0x0 (0 bytes) // exclude_hv: int64 = 0x0 (0 bytes) // exclude_idle: int64 = 0x0 (0 bytes) // mmap: int64 = 0x0 (0 bytes) // comm: int64 = 0x0 (0 bytes) // freq: int64 = 0x0 (0 bytes) // inherit_stat: int64 = 0x0 (0 bytes) // enable_on_exec: int64 = 0x0 (0 bytes) // task: int64 = 0x0 (0 bytes) // watermark: int64 = 0x0 (0 bytes) // precise_ip: int64 = 0x0 (0 bytes) // mmap_data: int64 = 0x0 (0 bytes) // sample_id_all: int64 = 0x0 (0 bytes) // exclude_host: int64 = 0x0 (0 bytes) // exclude_guest: int64 = 0x0 (0 bytes) // exclude_callchain_kernel: int64 = 0x0 (0 bytes) // exclude_callchain_user: int64 = 0x0 (0 bytes) // mmap2: int64 = 0x0 (0 bytes) // comm_exec: int64 = 0x0 (0 bytes) // use_clockid: int64 = 0x0 (0 bytes) // context_switch: int64 = 0x0 (0 bytes) // write_backward: int64 = 0x0 (0 bytes) // namespaces: int64 = 0x0 (0 bytes) // ksymbol: int64 = 0x0 (0 bytes) // bpf_event: int64 = 0x0 (0 bytes) // aux_output: int64 = 0x0 (0 bytes) // cgroup: int64 = 0x0 (0 bytes) // text_poke: int64 = 0x0 (0 bytes) // build_id: int64 = 0x0 (0 bytes) // inherit_thread: int64 = 0x0 (0 bytes) // remove_on_exec: int64 = 0x0 (0 bytes) // sigtrap: int64 = 0x0 (0 bytes) // __reserved_1: const = 0x0 (8 bytes) // wakeup_events: int32 = 0x0 (4 bytes) // bp_type: perf_bp_type = 0x0 (4 bytes) // bp_config: union perf_bp_config { // perf_bp: perf_bp { // bp_addr: nil // bp_len: perf_bp_lens = 0x0 (8 bytes) // } // } // branch_sample_type: perf_branch_sample_type = 0x0 (8 bytes) // sample_regs_user: int64 = 0x0 (8 bytes) // sample_stack_user: int32 = 0x0 (4 bytes) // clockid: clock_type = 0x0 (4 bytes) // sample_regs_intr: int64 = 0x8 (8 bytes) // aux_watermark: int32 = 0x3 (4 bytes) // sample_max_stack: int16 = 0x0 (2 bytes) // __reserved_2: const = 0x0 (2 bytes) // aux_sample_size: int32 = 0x0 (4 bytes) // __reserved_3: const = 0x0 (4 bytes) // sig_data: int64 = 0x0 (8 bytes) // } // } // pid: pid (resource) // cpu: intptr = 0x0 (8 bytes) // group: fd_perf (resource) // flags: perf_flags = 0x0 (8 bytes) // ] // returns fd_perf NONFAILING(*(uint32_t*)0x200000000300 = 2); NONFAILING(*(uint32_t*)0x200000000304 = 0x80); NONFAILING(*(uint8_t*)0x200000000308 = 0xbc); NONFAILING(*(uint8_t*)0x200000000309 = 0); NONFAILING(*(uint8_t*)0x20000000030a = 0); NONFAILING(*(uint8_t*)0x20000000030b = 0); NONFAILING(*(uint32_t*)0x20000000030c = 0); NONFAILING(*(uint64_t*)0x200000000310 = 7); NONFAILING(*(uint64_t*)0x200000000318 = 0xd8161); NONFAILING(*(uint64_t*)0x200000000320 = 0); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 0, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 1, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 2, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 3, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 4, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 5, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 6, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 7, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 8, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 9, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 10, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 11, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 12, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 13, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 14, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 15, 2)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 17, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 18, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 19, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 20, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 21, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 22, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 23, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 24, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 25, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 26, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 27, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 28, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 29, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 30, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 31, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 32, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 33, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 34, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 35, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 36, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 37, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x200000000328, 0, 38, 26)); NONFAILING(*(uint32_t*)0x200000000330 = 0); NONFAILING(*(uint32_t*)0x200000000334 = 0); NONFAILING(*(uint64_t*)0x200000000338 = 0); NONFAILING(*(uint64_t*)0x200000000340 = 0); NONFAILING(*(uint64_t*)0x200000000348 = 0); NONFAILING(*(uint64_t*)0x200000000350 = 0); NONFAILING(*(uint32_t*)0x200000000358 = 0); NONFAILING(*(uint32_t*)0x20000000035c = 0); NONFAILING(*(uint64_t*)0x200000000360 = 8); NONFAILING(*(uint32_t*)0x200000000368 = 3); NONFAILING(*(uint16_t*)0x20000000036c = 0); NONFAILING(*(uint16_t*)0x20000000036e = 0); NONFAILING(*(uint32_t*)0x200000000370 = 0); NONFAILING(*(uint32_t*)0x200000000374 = 0); NONFAILING(*(uint64_t*)0x200000000378 = 0); syscall(__NR_perf_event_open, /*attr=*/0x200000000300ul, /*pid=*/(intptr_t)-1, /*cpu=*/0ul, /*group=*/(intptr_t)-1, /*flags=*/0ul); for (int i = 0; i < 32; i++) { syscall(__NR_perf_event_open, /*attr=*/0x200000000300ul, /*pid=*/(intptr_t)-1, /*cpu=*/0ul, /*group=*/(intptr_t)-1, /*flags=*/0ul); } // perf_event_open arguments: [ // attr: ptr[in, perf_event_attr] { // perf_event_attr { // type: perf_event_type = 0x1 (4 bytes) // size: len = 0x80 (4 bytes) // config0: int8 = 0x0 (1 bytes) // config1: int8 = 0x0 (1 bytes) // config2: int8 = 0x0 (1 bytes) // config3: int8 = 0x0 (1 bytes) // config4: const = 0x0 (4 bytes) // sample_freq: int64 = 0x5d2e (8 bytes) // sample_type: perf_sample_type = 0x0 (8 bytes) // read_format: perf_read_format = 0x8 (8 bytes) // disabled: int64 = 0x0 (0 bytes) // inherit: int64 = 0x0 (0 bytes) // pinned: int64 = 0x0 (0 bytes) // exclusive: int64 = 0x0 (0 bytes) // exclude_user: int64 = 0x0 (0 bytes) // exclude_kernel: int64 = 0x0 (0 bytes) // exclude_hv: int64 = 0x0 (0 bytes) // exclude_idle: int64 = 0x0 (0 bytes) // mmap: int64 = 0x0 (0 bytes) // comm: int64 = 0x0 (0 bytes) // freq: int64 = 0x0 (0 bytes) // inherit_stat: int64 = 0x0 (0 bytes) // enable_on_exec: int64 = 0x0 (0 bytes) // task: int64 = 0x0 (0 bytes) // watermark: int64 = 0x0 (0 bytes) // precise_ip: int64 = 0x0 (0 bytes) // mmap_data: int64 = 0x0 (0 bytes) // sample_id_all: int64 = 0x0 (0 bytes) // exclude_host: int64 = 0x0 (0 bytes) // exclude_guest: int64 = 0x0 (0 bytes) // exclude_callchain_kernel: int64 = 0x0 (0 bytes) // exclude_callchain_user: int64 = 0x0 (0 bytes) // mmap2: int64 = 0x0 (0 bytes) // comm_exec: int64 = 0x0 (0 bytes) // use_clockid: int64 = 0x0 (0 bytes) // context_switch: int64 = 0x0 (0 bytes) // write_backward: int64 = 0x0 (0 bytes) // namespaces: int64 = 0x0 (0 bytes) // ksymbol: int64 = 0x0 (0 bytes) // bpf_event: int64 = 0x0 (0 bytes) // aux_output: int64 = 0x0 (0 bytes) // cgroup: int64 = 0x0 (0 bytes) // text_poke: int64 = 0x0 (0 bytes) // build_id: int64 = 0x0 (0 bytes) // inherit_thread: int64 = 0x0 (0 bytes) // remove_on_exec: int64 = 0x0 (0 bytes) // sigtrap: int64 = 0x0 (0 bytes) // __reserved_1: const = 0x0 (8 bytes) // wakeup_events: int32 = 0x0 (4 bytes) // bp_type: perf_bp_type = 0x0 (4 bytes) // bp_config: union perf_bp_config { // perf_config_ext: perf_config_ext { // config1: int64 = 0x7 (8 bytes) // config2: int64 = 0xa (8 bytes) // } // } // branch_sample_type: perf_branch_sample_type = 0x0 (8 bytes) // sample_regs_user: int64 = 0x0 (8 bytes) // sample_stack_user: int32 = 0x0 (4 bytes) // clockid: clock_type = 0x0 (4 bytes) // sample_regs_intr: int64 = 0x0 (8 bytes) // aux_watermark: int32 = 0x3 (4 bytes) // sample_max_stack: int16 = 0x0 (2 bytes) // __reserved_2: const = 0x0 (2 bytes) // aux_sample_size: int32 = 0x0 (4 bytes) // __reserved_3: const = 0x0 (4 bytes) // sig_data: int64 = 0x0 (8 bytes) // } // } // pid: pid (resource) // cpu: intptr = 0xffffffffffffffff (8 bytes) // group: fd_perf (resource) // flags: perf_flags = 0x0 (8 bytes) // ] // returns fd_perf NONFAILING(*(uint32_t*)0x200000000480 = 1); NONFAILING(*(uint32_t*)0x200000000484 = 0x80); NONFAILING(*(uint8_t*)0x200000000488 = 0); NONFAILING(*(uint8_t*)0x200000000489 = 0); NONFAILING(*(uint8_t*)0x20000000048a = 0); NONFAILING(*(uint8_t*)0x20000000048b = 0); NONFAILING(*(uint32_t*)0x20000000048c = 0); NONFAILING(*(uint64_t*)0x200000000490 = 0x5d2e); NONFAILING(*(uint64_t*)0x200000000498 = 0); NONFAILING(*(uint64_t*)0x2000000004a0 = 8); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 0, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 1, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 2, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 3, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 4, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 5, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 6, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 7, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 8, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 9, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 10, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 11, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 12, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 13, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 14, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 15, 2)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 17, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 18, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 19, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 20, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 21, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 22, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 23, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 24, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 25, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 26, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 27, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 28, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 29, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 30, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 31, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 32, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 33, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 34, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 35, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 36, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 37, 1)); NONFAILING(STORE_BY_BITMASK(uint64_t, , 0x2000000004a8, 0, 38, 26)); NONFAILING(*(uint32_t*)0x2000000004b0 = 0); NONFAILING(*(uint32_t*)0x2000000004b4 = 0); NONFAILING(*(uint64_t*)0x2000000004b8 = 7); NONFAILING(*(uint64_t*)0x2000000004c0 = 0xa); NONFAILING(*(uint64_t*)0x2000000004c8 = 0); NONFAILING(*(uint64_t*)0x2000000004d0 = 0); NONFAILING(*(uint32_t*)0x2000000004d8 = 0); NONFAILING(*(uint32_t*)0x2000000004dc = 0); NONFAILING(*(uint64_t*)0x2000000004e0 = 0); NONFAILING(*(uint32_t*)0x2000000004e8 = 3); NONFAILING(*(uint16_t*)0x2000000004ec = 0); NONFAILING(*(uint16_t*)0x2000000004ee = 0); NONFAILING(*(uint32_t*)0x2000000004f0 = 0); NONFAILING(*(uint32_t*)0x2000000004f4 = 0); NONFAILING(*(uint64_t*)0x2000000004f8 = 0); res = syscall(__NR_perf_event_open, /*attr=*/0x200000000480ul, /*pid=*/0, /*cpu=*/(intptr_t)-1, /*group=*/(intptr_t)-1, /*flags=*/0ul); if (res != -1) r[0] = res; // bpf$PROG_LOAD arguments: [ // cmd: const = 0x5 (8 bytes) // arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] { // bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types, // bpf_btf_id[opt], fd_bpf_prog[opt]] { // type: bpf_prog_type = 0x0 (4 bytes) // ninsn: bytesize8 = 0xc (4 bytes) // insns: ptr[inout, array[ANYUNION]] { // array[ANYUNION] { // union ANYUNION { // ANYBLOB: buffer: {18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // 00 85 00 00 00 75 00 00 00 18 01 00 00 20 64 6c 25 00 00 00 00 // 00 20 20 20 7b 1a f8 ff 00 00 00 00 bf a1 00 00 00 00 00 00 07 // 01 00 00 f8 ff ff ff b7 02 00 00 08 00 00 00 b7 03 00 00 00 00 // 00 00 85 00 00 00 0e 00 00 00 95} (length 0x59) // } // } // } // license: nil // loglev: int32 = 0xfffffffe (4 bytes) // logsize: len = 0x0 (4 bytes) // log: nil // kern_version: bpf_kern_version = 0x0 (4 bytes) // flags: bpf_prog_load_flags = 0x0 (4 bytes) // prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00} // (length 0x10) prog_ifindex: ifindex (resource) expected_attach_type: // union bpf_prog_attach_types { // fallback: bpf_attach_types = 0x0 (4 bytes) // } // btf_fd: fd_btf (resource) // func_info_rec_size: const = 0x0 (4 bytes) // func_info: nil // func_info_cnt: len = 0x0 (4 bytes) // line_info_rec_size: const = 0x0 (4 bytes) // line_info: nil // line_info_cnt: len = 0x0 (4 bytes) // attach_btf_id: bpf_btf_id (resource) // attach_prog_fd: fd_bpf_prog (resource) // core_relo_cnt: len = 0x0 (4 bytes) // fd_array: nil // core_relos: nil // core_relo_rec_size: const = 0x0 (4 bytes) // log_true_size: int32 = 0x0 (4 bytes) // prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], // fd_bpf_prog[opt]]_prog_token_fd_wrapper { // void: buffer: {} (length 0x0) // } // pad: union _bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], // fd_bpf_prog[opt]]_pad_wrapper { // value: const = 0x0 (4 bytes) // } // } // } // size: len = 0x94 (8 bytes) // ] // returns fd_bpf_prog NONFAILING(*(uint32_t*)0x2000000000c0 = 0); NONFAILING(*(uint32_t*)0x2000000000c4 = 0xc); NONFAILING(*(uint64_t*)0x2000000000c8 = 0x200000000440); NONFAILING(memcpy( (void*)0x200000000440, "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x85\x00" "\x00\x00\x75\x00\x00\x00\x18\x01\x00\x00\x20\x64\x6c\x25\x00\x00\x00\x00" "\x00\x20\x20\x20\x7b\x1a\xf8\xff\x00\x00\x00\x00\xbf\xa1\x00\x00\x00\x00" "\x00\x00\x07\x01\x00\x00\xf8\xff\xff\xff\xb7\x02\x00\x00\x08\x00\x00\x00" "\xb7\x03\x00\x00\x00\x00\x00\x00\x85\x00\x00\x00\x0e\x00\x00\x00\x95", 89)); NONFAILING(*(uint64_t*)0x2000000000d0 = 0); NONFAILING(*(uint32_t*)0x2000000000d8 = 0xfffffffe); NONFAILING(*(uint32_t*)0x2000000000dc = 0); NONFAILING(*(uint64_t*)0x2000000000e0 = 0); NONFAILING(*(uint32_t*)0x2000000000e8 = 0); NONFAILING(*(uint32_t*)0x2000000000ec = 0); NONFAILING(memset((void*)0x2000000000f0, 0, 16)); NONFAILING(*(uint32_t*)0x200000000100 = 0); NONFAILING(*(uint32_t*)0x200000000104 = 0); NONFAILING(*(uint32_t*)0x200000000108 = -1); NONFAILING(*(uint32_t*)0x20000000010c = 0); NONFAILING(*(uint64_t*)0x200000000110 = 0); NONFAILING(*(uint32_t*)0x200000000118 = 0); NONFAILING(*(uint32_t*)0x20000000011c = 0); NONFAILING(*(uint64_t*)0x200000000120 = 0); NONFAILING(*(uint32_t*)0x200000000128 = 0); NONFAILING(*(uint32_t*)0x20000000012c = 0); NONFAILING(*(uint32_t*)0x200000000130 = -1); NONFAILING(*(uint32_t*)0x200000000134 = 0); NONFAILING(*(uint64_t*)0x200000000138 = 0); NONFAILING(*(uint64_t*)0x200000000140 = 0); NONFAILING(*(uint32_t*)0x200000000148 = 0); NONFAILING(*(uint32_t*)0x20000000014c = 0); NONFAILING(*(uint32_t*)0x200000000150 = 0); syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000000c0ul, /*size=*/0x94ul); // bpf$PROG_LOAD arguments: [ // cmd: const = 0x5 (8 bytes) // arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] { // bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types, // bpf_btf_id[opt], fd_bpf_prog[opt]] { // type: bpf_prog_type = 0xa (4 bytes) // ninsn: bytesize8 = 0x4 (4 bytes) // insns: ptr[inout, array[ANYUNION]] { // array[ANYUNION] { // union ANYUNION { // ANYBLOB: buffer: {18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // 00 85 00 00 00 6d} (length 0x15) // } // } // } // license: nil // loglev: int32 = 0x0 (4 bytes) // logsize: len = 0x0 (4 bytes) // log: nil // kern_version: bpf_kern_version = 0x0 (4 bytes) // flags: bpf_prog_load_flags = 0x0 (4 bytes) // prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00} // (length 0x10) prog_ifindex: ifindex (resource) expected_attach_type: // union bpf_prog_attach_types { // fallback: bpf_attach_types = 0x0 (4 bytes) // } // btf_fd: fd_btf (resource) // func_info_rec_size: const = 0x0 (4 bytes) // func_info: nil // func_info_cnt: len = 0x0 (4 bytes) // line_info_rec_size: const = 0x0 (4 bytes) // line_info: nil // line_info_cnt: len = 0x0 (4 bytes) // attach_btf_id: bpf_btf_id (resource) // attach_prog_fd: fd_bpf_prog (resource) // core_relo_cnt: len = 0x0 (4 bytes) // fd_array: nil // core_relos: nil // core_relo_rec_size: const = 0x0 (4 bytes) // log_true_size: int32 = 0x0 (4 bytes) // prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], // fd_bpf_prog[opt]]_prog_token_fd_wrapper { // void: buffer: {} (length 0x0) // } // pad: union _bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], // fd_bpf_prog[opt]]_pad_wrapper { // value: const = 0x0 (4 bytes) // } // } // } // size: len = 0x94 (8 bytes) // ] // returns fd_bpf_prog NONFAILING(*(uint32_t*)0x2000000000c0 = 0xa); NONFAILING(*(uint32_t*)0x2000000000c4 = 4); NONFAILING(*(uint64_t*)0x2000000000c8 = 0x200000000480); NONFAILING(memcpy((void*)0x200000000480, "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x85\x00\x00\x00\x6d", 21)); NONFAILING(*(uint64_t*)0x2000000000d0 = 0); NONFAILING(*(uint32_t*)0x2000000000d8 = 0); NONFAILING(*(uint32_t*)0x2000000000dc = 0); NONFAILING(*(uint64_t*)0x2000000000e0 = 0); NONFAILING(*(uint32_t*)0x2000000000e8 = 0); NONFAILING(*(uint32_t*)0x2000000000ec = 0); NONFAILING(memset((void*)0x2000000000f0, 0, 16)); NONFAILING(*(uint32_t*)0x200000000100 = 0); NONFAILING(*(uint32_t*)0x200000000104 = 0); NONFAILING(*(uint32_t*)0x200000000108 = -1); NONFAILING(*(uint32_t*)0x20000000010c = 0); NONFAILING(*(uint64_t*)0x200000000110 = 0); NONFAILING(*(uint32_t*)0x200000000118 = 0); NONFAILING(*(uint32_t*)0x20000000011c = 0); NONFAILING(*(uint64_t*)0x200000000120 = 0); NONFAILING(*(uint32_t*)0x200000000128 = 0); NONFAILING(*(uint32_t*)0x20000000012c = 0); NONFAILING(*(uint32_t*)0x200000000130 = 0); NONFAILING(*(uint32_t*)0x200000000134 = 0); NONFAILING(*(uint64_t*)0x200000000138 = 0); NONFAILING(*(uint64_t*)0x200000000140 = 0); NONFAILING(*(uint32_t*)0x200000000148 = 0); NONFAILING(*(uint32_t*)0x20000000014c = 0); NONFAILING(*(uint32_t*)0x200000000150 = 0); syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000000c0ul, /*size=*/0x94ul); // bpf$BPF_PROG_RAW_TRACEPOINT_LOAD arguments: [ // cmd: const = 0x5 (8 bytes) // arg: ptr[in, bpf_prog_t[flags[bpf_raw_tracepoint_prog_types, int32], // const[0, int32], const[0, int32], const[0, int32]]] { // bpf_prog_t[flags[bpf_raw_tracepoint_prog_types, int32], const[0, // int32], const[0, int32], const[0, int32]] { // type: bpf_raw_tracepoint_prog_types = 0x18 (4 bytes) // ninsn: bytesize8 = 0x5 (4 bytes) // insns: ptr[inout, array[ANYUNION]] { // array[ANYUNION] { // union ANYUNION { // ANYBLOB: buffer: {18 01 00 00 21} (length 0x5) // } // } // } // license: nil // loglev: int32 = 0x40 (4 bytes) // logsize: len = 0x0 (4 bytes) // log: nil // kern_version: bpf_kern_version = 0x0 (4 bytes) // flags: bpf_prog_load_flags = 0x0 (4 bytes) // prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00} // (length 0x10) prog_ifindex: ifindex (resource) expected_attach_type: // const = 0x2 (4 bytes) btf_fd: fd_btf (resource) func_info_rec_size: // const = 0x8 (4 bytes) func_info: nil func_info_cnt: len = 0x0 (4 // bytes) line_info_rec_size: const = 0x10 (4 bytes) line_info: nil // line_info_cnt: len = 0x0 (4 bytes) // attach_btf_id: const = 0x0 (4 bytes) // attach_prog_fd: const = 0x0 (4 bytes) // core_relo_cnt: len = 0x0 (4 bytes) // fd_array: nil // core_relos: nil // core_relo_rec_size: const = 0x10 (4 bytes) // log_true_size: int32 = 0x0 (4 bytes) // prog_token_fd: union // _bpf_prog_t[flags[bpf_raw_tracepoint_prog_types, int32], const[0, // int32], const[0, int32], const[0, int32]]_prog_token_fd_wrapper { // void: buffer: {} (length 0x0) // } // pad: union _bpf_prog_t[flags[bpf_raw_tracepoint_prog_types, int32], // const[0, int32], const[0, int32], const[0, int32]]_pad_wrapper { // value: const = 0x0 (4 bytes) // } // } // } // size: len = 0x94 (8 bytes) // ] // returns fd_bpf_prog_raw_tracepoint NONFAILING(*(uint32_t*)0x200000000d80 = 0x18); NONFAILING(*(uint32_t*)0x200000000d84 = 5); NONFAILING(*(uint64_t*)0x200000000d88 = 0x200000000480); NONFAILING(memcpy((void*)0x200000000480, "\x18\x01\x00\x00\x21", 5)); NONFAILING(*(uint64_t*)0x200000000d90 = 0); NONFAILING(*(uint32_t*)0x200000000d98 = 0x40); NONFAILING(*(uint32_t*)0x200000000d9c = 0); NONFAILING(*(uint64_t*)0x200000000da0 = 0); NONFAILING(*(uint32_t*)0x200000000da8 = 0); NONFAILING(*(uint32_t*)0x200000000dac = 0); NONFAILING(memset((void*)0x200000000db0, 0, 16)); NONFAILING(*(uint32_t*)0x200000000dc0 = 0); NONFAILING(*(uint32_t*)0x200000000dc4 = 2); NONFAILING(*(uint32_t*)0x200000000dc8 = -1); NONFAILING(*(uint32_t*)0x200000000dcc = 8); NONFAILING(*(uint64_t*)0x200000000dd0 = 0); NONFAILING(*(uint32_t*)0x200000000dd8 = 0); NONFAILING(*(uint32_t*)0x200000000ddc = 0x10); NONFAILING(*(uint64_t*)0x200000000de0 = 0); NONFAILING(*(uint32_t*)0x200000000de8 = 0); NONFAILING(*(uint32_t*)0x200000000dec = 0); NONFAILING(*(uint32_t*)0x200000000df0 = 0); NONFAILING(*(uint32_t*)0x200000000df4 = 0); NONFAILING(*(uint64_t*)0x200000000df8 = 0); NONFAILING(*(uint64_t*)0x200000000e00 = 0); NONFAILING(*(uint32_t*)0x200000000e08 = 0x10); NONFAILING(*(uint32_t*)0x200000000e0c = 0); NONFAILING(*(uint32_t*)0x200000000e10 = 0); syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000d80ul, /*size=*/0x94ul); // bpf$PROG_LOAD arguments: [ // cmd: const = 0x5 (8 bytes) // arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] { // bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types, // bpf_btf_id[opt], fd_bpf_prog[opt]] { // type: bpf_prog_type = 0x7 (4 bytes) // ninsn: bytesize8 = 0xc (4 bytes) // insns: ptr[inout, array[ANYUNION]] { // array[ANYUNION] { // } // } // license: ptr[in, buffer] { // buffer: {47 50 4c 00} (length 0x4) // } // loglev: int32 = 0x0 (4 bytes) // logsize: len = 0x0 (4 bytes) // log: nil // kern_version: bpf_kern_version = 0x0 (4 bytes) // flags: bpf_prog_load_flags = 0x4 (4 bytes) // prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00} // (length 0x10) prog_ifindex: ifindex (resource) expected_attach_type: // union bpf_prog_attach_types { // fallback: bpf_attach_types = 0x2 (4 bytes) // } // btf_fd: fd_btf (resource) // func_info_rec_size: const = 0x0 (4 bytes) // func_info: nil // func_info_cnt: len = 0x0 (4 bytes) // line_info_rec_size: const = 0x0 (4 bytes) // line_info: nil // line_info_cnt: len = 0x0 (4 bytes) // attach_btf_id: bpf_btf_id (resource) // attach_prog_fd: fd_bpf_prog (resource) // core_relo_cnt: len = 0x0 (4 bytes) // fd_array: nil // core_relos: nil // core_relo_rec_size: const = 0x0 (4 bytes) // log_true_size: int32 = 0x0 (4 bytes) // prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], // fd_bpf_prog[opt]]_prog_token_fd_wrapper { // void: buffer: {} (length 0x0) // } // pad: union _bpf_prog_t[flags[bpf_prog_type, int32], // bpf_prog_attach_types, bpf_btf_id[opt], // fd_bpf_prog[opt]]_pad_wrapper { // value: const = 0x0 (4 bytes) // } // } // } // size: len = 0x94 (8 bytes) // ] // returns fd_bpf_prog NONFAILING(*(uint32_t*)0x2000000005c0 = 7); NONFAILING(*(uint32_t*)0x2000000005c4 = 0xc); NONFAILING(*(uint64_t*)0x2000000005c8 = 0x200000000440); NONFAILING(*(uint64_t*)0x2000000005d0 = 0x200000000240); NONFAILING(memcpy((void*)0x200000000240, "GPL\000", 4)); NONFAILING(*(uint32_t*)0x2000000005d8 = 0); NONFAILING(*(uint32_t*)0x2000000005dc = 0); NONFAILING(*(uint64_t*)0x2000000005e0 = 0); NONFAILING(*(uint32_t*)0x2000000005e8 = 0); NONFAILING(*(uint32_t*)0x2000000005ec = 4); NONFAILING(memset((void*)0x2000000005f0, 0, 16)); NONFAILING(*(uint32_t*)0x200000000600 = 0); NONFAILING(*(uint32_t*)0x200000000604 = 2); NONFAILING(*(uint32_t*)0x200000000608 = -1); NONFAILING(*(uint32_t*)0x20000000060c = 0); NONFAILING(*(uint64_t*)0x200000000610 = 0); NONFAILING(*(uint32_t*)0x200000000618 = 0); NONFAILING(*(uint32_t*)0x20000000061c = 0); NONFAILING(*(uint64_t*)0x200000000620 = 0); NONFAILING(*(uint32_t*)0x200000000628 = 0); NONFAILING(*(uint32_t*)0x20000000062c = 0); NONFAILING(*(uint32_t*)0x200000000630 = 0); NONFAILING(*(uint32_t*)0x200000000634 = 0); NONFAILING(*(uint64_t*)0x200000000638 = 0); NONFAILING(*(uint64_t*)0x200000000640 = 0); NONFAILING(*(uint32_t*)0x200000000648 = 0); NONFAILING(*(uint32_t*)0x20000000064c = 0); NONFAILING(*(uint32_t*)0x200000000650 = 0); res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000005c0ul, /*size=*/0x94ul); if (res != -1) r[1] = res; // ioctl$PERF_EVENT_IOC_SET_BPF arguments: [ // fd: fd_perf (resource) // cmd: const = 0x40042408 (4 bytes) // prog: fd_bpf_prog (resource) // ] syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x40042408, /*prog=*/r[1]); } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); setup_sysctl(); const char* reason; (void)reason; install_segv_handler(); for (procid = 0; procid < 5; procid++) { if (fork() == 0) { use_temporary_dir(); loop(); } } sleep(1000000); return 0; }