// https://syzkaller.appspot.com/bug?id=fc58ccf9a93c4efaefb2ac722bc5fa69eb1c9ac6 // 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 #include #include #include #include unsigned long long procid; static __thread int skip_segv; static __thread jmp_buf segv_env; static void segv_handler(int sig, siginfo_t* info, void* ctx) { uintptr_t addr = (uintptr_t)info->si_addr; const uintptr_t prog_start = 1 << 20; const uintptr_t prog_end = 100 << 20; if (__atomic_load_n(&skip_segv, __ATOMIC_RELAXED) && (addr < prog_start || addr > prog_end)) { _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(...) \ { \ __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); \ if (_setjmp(segv_env) == 0) { \ __VA_ARGS__; \ } \ __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); \ } 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); } 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; } static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2) { if (a0 == 0xc || a0 == 0xb) { char buf[128]; sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1, (uint8_t)a2); return open(buf, O_RDWR, 0); } else { char buf[1024]; char* hash; NONFAILING(strncpy(buf, (char*)a0, sizeof(buf) - 1)); buf[sizeof(buf) - 1] = 0; while ((hash = strchr(buf, '#'))) { *hash = '0' + (char)(a1 % 10); a1 /= 10; } return open(buf, a2, 0); } } static void setup_common() { if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { } } static void loop(); static void sandbox_common() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); setsid(); struct rlimit rlim; rlim.rlim_cur = rlim.rlim_max = (200 << 20); setrlimit(RLIMIT_AS, &rlim); rlim.rlim_cur = rlim.rlim_max = 32 << 20; setrlimit(RLIMIT_MEMLOCK, &rlim); rlim.rlim_cur = rlim.rlim_max = 136 << 20; setrlimit(RLIMIT_FSIZE, &rlim); rlim.rlim_cur = rlim.rlim_max = 1 << 20; setrlimit(RLIMIT_STACK, &rlim); rlim.rlim_cur = rlim.rlim_max = 0; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); if (unshare(CLONE_NEWNS)) { } if (unshare(CLONE_NEWIPC)) { } if (unshare(0x02000000)) { } if (unshare(CLONE_NEWUTS)) { } if (unshare(CLONE_SYSVSEM)) { } typedef struct { const char* name; const char* value; } sysctl_t; static const sysctl_t sysctls[] = { {"/proc/sys/kernel/shmmax", "16777216"}, {"/proc/sys/kernel/shmall", "536870912"}, {"/proc/sys/kernel/shmmni", "1024"}, {"/proc/sys/kernel/msgmax", "8192"}, {"/proc/sys/kernel/msgmni", "1024"}, {"/proc/sys/kernel/msgmnb", "1024"}, {"/proc/sys/kernel/sem", "1024 1048576 500 1024"}, }; unsigned i; for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++) write_file(sysctls[i].name, sysctls[i].value); } int wait_for_loop(int pid) { if (pid < 0) exit(1); int status = 0; while (waitpid(-1, &status, __WALL) != pid) { } return WEXITSTATUS(status); } static void drop_caps(void) { struct __user_cap_header_struct cap_hdr = {}; struct __user_cap_data_struct cap_data[2] = {}; cap_hdr.version = _LINUX_CAPABILITY_VERSION_3; cap_hdr.pid = getpid(); if (syscall(SYS_capget, &cap_hdr, &cap_data)) exit(1); const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE); cap_data[0].effective &= ~drop; cap_data[0].permitted &= ~drop; cap_data[0].inheritable &= ~drop; if (syscall(SYS_capset, &cap_hdr, &cap_data)) exit(1); } static int do_sandbox_none(void) { if (unshare(CLONE_NEWPID)) { } int pid = fork(); if (pid != 0) return wait_for_loop(pid); setup_common(); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } loop(); exit(1); } #define FS_IOC_SETFLAGS _IOW('f', 2, long) static void remove_dir(const char* dir) { DIR* dp; struct dirent* ep; int iter = 0; retry: while (umount2(dir, MNT_DETACH) == 0) { } dp = opendir(dir); if (dp == NULL) { if (errno == EMFILE) { exit(1); } exit(1); } 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, MNT_DETACH) == 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, MNT_DETACH)) exit(1); } } closedir(dp); int i; for (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, MNT_DETACH)) 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); int i; for (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"); } static void close_fds() { int fd; for (fd = 3; fd < 30; fd++) close(fd); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter; for (iter = 0;; 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(); close_fds(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5 * 1000) continue; kill_and_wait(pid, &status); break; } remove_dir(cwdbuf); } } uint64_t r[1] = {0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; NONFAILING(memcpy((void*)0x20000000, "/dev/uinput\000", 12)); res = syscall(__NR_openat, 0xffffffffffffff9c, 0x20000000, 2, 0); if (res != -1) r[0] = res; NONFAILING(memcpy((void*)0x20000b40, "syz1\000\000\000\000\000\000\000\000\000\000\000\000\000" "\000\000\000\000\000\000\000\000\000\000\000\000\000\000" "\000\000\000\000\000\000\000\000\000\000\000\000\000\000" "\000\000\000\000\000\000\000\000\000\000\000\000\000\000" "\000\000\000\000\000\000\000\000\000\000\000\000\000\000" "\000\000\000\000\000\000\000", 80)); NONFAILING(*(uint16_t*)0x20000b90 = 0); NONFAILING(*(uint16_t*)0x20000b92 = 0); NONFAILING(*(uint16_t*)0x20000b94 = 0); NONFAILING(*(uint16_t*)0x20000b96 = 0); NONFAILING(*(uint32_t*)0x20000b98 = 0); NONFAILING(*(uint32_t*)0x20000b9c = 0); NONFAILING(*(uint32_t*)0x20000ba0 = 0); NONFAILING(*(uint32_t*)0x20000ba4 = 0); NONFAILING(*(uint32_t*)0x20000ba8 = 0); NONFAILING(*(uint32_t*)0x20000bac = 0); NONFAILING(*(uint32_t*)0x20000bb0 = 0); NONFAILING(*(uint32_t*)0x20000bb4 = 0); NONFAILING(*(uint32_t*)0x20000bb8 = 0); NONFAILING(*(uint32_t*)0x20000bbc = 0); NONFAILING(*(uint32_t*)0x20000bc0 = 0); NONFAILING(*(uint32_t*)0x20000bc4 = 0); NONFAILING(*(uint32_t*)0x20000bc8 = 0); NONFAILING(*(uint32_t*)0x20000bcc = 0); NONFAILING(*(uint32_t*)0x20000bd0 = 0); NONFAILING(*(uint32_t*)0x20000bd4 = 0); NONFAILING(*(uint32_t*)0x20000bd8 = 0); NONFAILING(*(uint32_t*)0x20000bdc = 0); NONFAILING(*(uint32_t*)0x20000be0 = 0); NONFAILING(*(uint32_t*)0x20000be4 = 0); NONFAILING(*(uint32_t*)0x20000be8 = 0); NONFAILING(*(uint32_t*)0x20000bec = 0); NONFAILING(*(uint32_t*)0x20000bf0 = 0); NONFAILING(*(uint32_t*)0x20000bf4 = 0); NONFAILING(*(uint32_t*)0x20000bf8 = 0); NONFAILING(*(uint32_t*)0x20000bfc = 0); NONFAILING(*(uint32_t*)0x20000c00 = 0); NONFAILING(*(uint32_t*)0x20000c04 = 0); NONFAILING(*(uint32_t*)0x20000c08 = 0); NONFAILING(*(uint32_t*)0x20000c0c = 0); NONFAILING(*(uint32_t*)0x20000c10 = 0); NONFAILING(*(uint32_t*)0x20000c14 = 0); NONFAILING(*(uint32_t*)0x20000c18 = 0); NONFAILING(*(uint32_t*)0x20000c1c = 0); NONFAILING(*(uint32_t*)0x20000c20 = 0); NONFAILING(*(uint32_t*)0x20000c24 = 0); NONFAILING(*(uint32_t*)0x20000c28 = 0); NONFAILING(*(uint32_t*)0x20000c2c = 0); NONFAILING(*(uint32_t*)0x20000c30 = 0); NONFAILING(*(uint32_t*)0x20000c34 = 0); NONFAILING(*(uint32_t*)0x20000c38 = 0); NONFAILING(*(uint32_t*)0x20000c3c = 0); NONFAILING(*(uint32_t*)0x20000c40 = 0); NONFAILING(*(uint32_t*)0x20000c44 = 0); NONFAILING(*(uint32_t*)0x20000c48 = 0); NONFAILING(*(uint32_t*)0x20000c4c = 0); NONFAILING(*(uint32_t*)0x20000c50 = 0); NONFAILING(*(uint32_t*)0x20000c54 = 0); NONFAILING(*(uint32_t*)0x20000c58 = 0); NONFAILING(*(uint32_t*)0x20000c5c = 0); NONFAILING(*(uint32_t*)0x20000c60 = 0); NONFAILING(*(uint32_t*)0x20000c64 = 0); NONFAILING(*(uint32_t*)0x20000c68 = 0); NONFAILING(*(uint32_t*)0x20000c6c = 0); NONFAILING(*(uint32_t*)0x20000c70 = 0); NONFAILING(*(uint32_t*)0x20000c74 = 0); NONFAILING(*(uint32_t*)0x20000c78 = 0); NONFAILING(*(uint32_t*)0x20000c7c = 0); NONFAILING(*(uint32_t*)0x20000c80 = 0); NONFAILING(*(uint32_t*)0x20000c84 = 0); NONFAILING(*(uint32_t*)0x20000c88 = 0); NONFAILING(*(uint32_t*)0x20000c8c = 0); NONFAILING(*(uint32_t*)0x20000c90 = 0); NONFAILING(*(uint32_t*)0x20000c94 = 0); NONFAILING(*(uint32_t*)0x20000c98 = 0); NONFAILING(*(uint32_t*)0x20000c9c = 0); NONFAILING(*(uint32_t*)0x20000ca0 = 0); NONFAILING(*(uint32_t*)0x20000ca4 = 0); NONFAILING(*(uint32_t*)0x20000ca8 = 0); NONFAILING(*(uint32_t*)0x20000cac = 0); NONFAILING(*(uint32_t*)0x20000cb0 = 0); NONFAILING(*(uint32_t*)0x20000cb4 = 0); NONFAILING(*(uint32_t*)0x20000cb8 = 0); NONFAILING(*(uint32_t*)0x20000cbc = 0); NONFAILING(*(uint32_t*)0x20000cc0 = 0); NONFAILING(*(uint32_t*)0x20000cc4 = 0); NONFAILING(*(uint32_t*)0x20000cc8 = 0); NONFAILING(*(uint32_t*)0x20000ccc = 0); NONFAILING(*(uint32_t*)0x20000cd0 = 0); NONFAILING(*(uint32_t*)0x20000cd4 = 0); NONFAILING(*(uint32_t*)0x20000cd8 = 0); NONFAILING(*(uint32_t*)0x20000cdc = 0); NONFAILING(*(uint32_t*)0x20000ce0 = 0); NONFAILING(*(uint32_t*)0x20000ce4 = 0); NONFAILING(*(uint32_t*)0x20000ce8 = 0); NONFAILING(*(uint32_t*)0x20000cec = 0); NONFAILING(*(uint32_t*)0x20000cf0 = 0); NONFAILING(*(uint32_t*)0x20000cf4 = 0); NONFAILING(*(uint32_t*)0x20000cf8 = 0); NONFAILING(*(uint32_t*)0x20000cfc = 0); NONFAILING(*(uint32_t*)0x20000d00 = 0); NONFAILING(*(uint32_t*)0x20000d04 = 0); NONFAILING(*(uint32_t*)0x20000d08 = 0); NONFAILING(*(uint32_t*)0x20000d0c = 0); NONFAILING(*(uint32_t*)0x20000d10 = 0); NONFAILING(*(uint32_t*)0x20000d14 = 0); NONFAILING(*(uint32_t*)0x20000d18 = 0); NONFAILING(*(uint32_t*)0x20000d1c = 0); NONFAILING(*(uint32_t*)0x20000d20 = 0); NONFAILING(*(uint32_t*)0x20000d24 = 0); NONFAILING(*(uint32_t*)0x20000d28 = 0); NONFAILING(*(uint32_t*)0x20000d2c = 0); NONFAILING(*(uint32_t*)0x20000d30 = 0); NONFAILING(*(uint32_t*)0x20000d34 = 0); NONFAILING(*(uint32_t*)0x20000d38 = 0); NONFAILING(*(uint32_t*)0x20000d3c = 0); NONFAILING(*(uint32_t*)0x20000d40 = 0); NONFAILING(*(uint32_t*)0x20000d44 = 0); NONFAILING(*(uint32_t*)0x20000d48 = 0); NONFAILING(*(uint32_t*)0x20000d4c = 0); NONFAILING(*(uint32_t*)0x20000d50 = 0); NONFAILING(*(uint32_t*)0x20000d54 = 0); NONFAILING(*(uint32_t*)0x20000d58 = 0); NONFAILING(*(uint32_t*)0x20000d5c = 0); NONFAILING(*(uint32_t*)0x20000d60 = 0); NONFAILING(*(uint32_t*)0x20000d64 = 0); NONFAILING(*(uint32_t*)0x20000d68 = 0); NONFAILING(*(uint32_t*)0x20000d6c = 0); NONFAILING(*(uint32_t*)0x20000d70 = 0); NONFAILING(*(uint32_t*)0x20000d74 = 0); NONFAILING(*(uint32_t*)0x20000d78 = 0); NONFAILING(*(uint32_t*)0x20000d7c = 0); NONFAILING(*(uint32_t*)0x20000d80 = 0); NONFAILING(*(uint32_t*)0x20000d84 = 0); NONFAILING(*(uint32_t*)0x20000d88 = 0); NONFAILING(*(uint32_t*)0x20000d8c = 0); NONFAILING(*(uint32_t*)0x20000d90 = 0); NONFAILING(*(uint32_t*)0x20000d94 = 0); NONFAILING(*(uint32_t*)0x20000d98 = 0); NONFAILING(*(uint32_t*)0x20000d9c = 0); NONFAILING(*(uint32_t*)0x20000da0 = 0); NONFAILING(*(uint32_t*)0x20000da4 = 0); NONFAILING(*(uint32_t*)0x20000da8 = 0); NONFAILING(*(uint32_t*)0x20000dac = 0); NONFAILING(*(uint32_t*)0x20000db0 = 0); NONFAILING(*(uint32_t*)0x20000db4 = 0); NONFAILING(*(uint32_t*)0x20000db8 = 0); NONFAILING(*(uint32_t*)0x20000dbc = 0); NONFAILING(*(uint32_t*)0x20000dc0 = 0); NONFAILING(*(uint32_t*)0x20000dc4 = 0); NONFAILING(*(uint32_t*)0x20000dc8 = 0); NONFAILING(*(uint32_t*)0x20000dcc = 0); NONFAILING(*(uint32_t*)0x20000dd0 = 0); NONFAILING(*(uint32_t*)0x20000dd4 = 0); NONFAILING(*(uint32_t*)0x20000dd8 = 0); NONFAILING(*(uint32_t*)0x20000ddc = 0); NONFAILING(*(uint32_t*)0x20000de0 = 0); NONFAILING(*(uint32_t*)0x20000de4 = 0); NONFAILING(*(uint32_t*)0x20000de8 = 0); NONFAILING(*(uint32_t*)0x20000dec = 0); NONFAILING(*(uint32_t*)0x20000df0 = 0); NONFAILING(*(uint32_t*)0x20000df4 = 0); NONFAILING(*(uint32_t*)0x20000df8 = 0); NONFAILING(*(uint32_t*)0x20000dfc = 0); NONFAILING(*(uint32_t*)0x20000e00 = 0); NONFAILING(*(uint32_t*)0x20000e04 = 0); NONFAILING(*(uint32_t*)0x20000e08 = 0); NONFAILING(*(uint32_t*)0x20000e0c = 0); NONFAILING(*(uint32_t*)0x20000e10 = 0); NONFAILING(*(uint32_t*)0x20000e14 = 0); NONFAILING(*(uint32_t*)0x20000e18 = 0); NONFAILING(*(uint32_t*)0x20000e1c = 0); NONFAILING(*(uint32_t*)0x20000e20 = 0); NONFAILING(*(uint32_t*)0x20000e24 = 0); NONFAILING(*(uint32_t*)0x20000e28 = 0); NONFAILING(*(uint32_t*)0x20000e2c = 0); NONFAILING(*(uint32_t*)0x20000e30 = 0); NONFAILING(*(uint32_t*)0x20000e34 = 0); NONFAILING(*(uint32_t*)0x20000e38 = 0); NONFAILING(*(uint32_t*)0x20000e3c = 0); NONFAILING(*(uint32_t*)0x20000e40 = 0); NONFAILING(*(uint32_t*)0x20000e44 = 0); NONFAILING(*(uint32_t*)0x20000e48 = 0); NONFAILING(*(uint32_t*)0x20000e4c = 0); NONFAILING(*(uint32_t*)0x20000e50 = 0); NONFAILING(*(uint32_t*)0x20000e54 = 0); NONFAILING(*(uint32_t*)0x20000e58 = 0); NONFAILING(*(uint32_t*)0x20000e5c = 0); NONFAILING(*(uint32_t*)0x20000e60 = 0); NONFAILING(*(uint32_t*)0x20000e64 = 0); NONFAILING(*(uint32_t*)0x20000e68 = 0); NONFAILING(*(uint32_t*)0x20000e6c = 0); NONFAILING(*(uint32_t*)0x20000e70 = 0); NONFAILING(*(uint32_t*)0x20000e74 = 0); NONFAILING(*(uint32_t*)0x20000e78 = 0); NONFAILING(*(uint32_t*)0x20000e7c = 0); NONFAILING(*(uint32_t*)0x20000e80 = 0); NONFAILING(*(uint32_t*)0x20000e84 = 0); NONFAILING(*(uint32_t*)0x20000e88 = 0); NONFAILING(*(uint32_t*)0x20000e8c = 0); NONFAILING(*(uint32_t*)0x20000e90 = 0); NONFAILING(*(uint32_t*)0x20000e94 = 0); NONFAILING(*(uint32_t*)0x20000e98 = 0); NONFAILING(*(uint32_t*)0x20000e9c = 0); NONFAILING(*(uint32_t*)0x20000ea0 = 0); NONFAILING(*(uint32_t*)0x20000ea4 = 0); NONFAILING(*(uint32_t*)0x20000ea8 = 0); NONFAILING(*(uint32_t*)0x20000eac = 0); NONFAILING(*(uint32_t*)0x20000eb0 = 0); NONFAILING(*(uint32_t*)0x20000eb4 = 0); NONFAILING(*(uint32_t*)0x20000eb8 = 0); NONFAILING(*(uint32_t*)0x20000ebc = 0); NONFAILING(*(uint32_t*)0x20000ec0 = 0); NONFAILING(*(uint32_t*)0x20000ec4 = 0); NONFAILING(*(uint32_t*)0x20000ec8 = 0); NONFAILING(*(uint32_t*)0x20000ecc = 0); NONFAILING(*(uint32_t*)0x20000ed0 = 0); NONFAILING(*(uint32_t*)0x20000ed4 = 0); NONFAILING(*(uint32_t*)0x20000ed8 = 0); NONFAILING(*(uint32_t*)0x20000edc = 0); NONFAILING(*(uint32_t*)0x20000ee0 = 0); NONFAILING(*(uint32_t*)0x20000ee4 = 0); NONFAILING(*(uint32_t*)0x20000ee8 = 0); NONFAILING(*(uint32_t*)0x20000eec = 0); NONFAILING(*(uint32_t*)0x20000ef0 = 0); NONFAILING(*(uint32_t*)0x20000ef4 = 0); NONFAILING(*(uint32_t*)0x20000ef8 = 0); NONFAILING(*(uint32_t*)0x20000efc = 0); NONFAILING(*(uint32_t*)0x20000f00 = 0); NONFAILING(*(uint32_t*)0x20000f04 = 0); NONFAILING(*(uint32_t*)0x20000f08 = 0); NONFAILING(*(uint32_t*)0x20000f0c = 0); NONFAILING(*(uint32_t*)0x20000f10 = 0); NONFAILING(*(uint32_t*)0x20000f14 = 0); NONFAILING(*(uint32_t*)0x20000f18 = 0); NONFAILING(*(uint32_t*)0x20000f1c = 0); NONFAILING(*(uint32_t*)0x20000f20 = 0); NONFAILING(*(uint32_t*)0x20000f24 = 0); NONFAILING(*(uint32_t*)0x20000f28 = 0); NONFAILING(*(uint32_t*)0x20000f2c = 0); NONFAILING(*(uint32_t*)0x20000f30 = 0); NONFAILING(*(uint32_t*)0x20000f34 = 0); NONFAILING(*(uint32_t*)0x20000f38 = 0); NONFAILING(*(uint32_t*)0x20000f3c = 0); NONFAILING(*(uint32_t*)0x20000f40 = 0); NONFAILING(*(uint32_t*)0x20000f44 = 0); NONFAILING(*(uint32_t*)0x20000f48 = 0); NONFAILING(*(uint32_t*)0x20000f4c = 0); NONFAILING(*(uint32_t*)0x20000f50 = 0); NONFAILING(*(uint32_t*)0x20000f54 = 0); NONFAILING(*(uint32_t*)0x20000f58 = 0); NONFAILING(*(uint32_t*)0x20000f5c = 0); NONFAILING(*(uint32_t*)0x20000f60 = 0); NONFAILING(*(uint32_t*)0x20000f64 = 0); NONFAILING(*(uint32_t*)0x20000f68 = 0); NONFAILING(*(uint32_t*)0x20000f6c = 0); NONFAILING(*(uint32_t*)0x20000f70 = 0); NONFAILING(*(uint32_t*)0x20000f74 = 0); NONFAILING(*(uint32_t*)0x20000f78 = 0); NONFAILING(*(uint32_t*)0x20000f7c = 0); NONFAILING(*(uint32_t*)0x20000f80 = 0); NONFAILING(*(uint32_t*)0x20000f84 = 0); NONFAILING(*(uint32_t*)0x20000f88 = 0); NONFAILING(*(uint32_t*)0x20000f8c = 0); NONFAILING(*(uint32_t*)0x20000f90 = 0); NONFAILING(*(uint32_t*)0x20000f94 = 0); NONFAILING(*(uint32_t*)0x20000f98 = 0); syscall(__NR_write, r[0], 0x20000b40, 0x45c); syscall(__NR_ioctl, r[0], 0x5501, 0); NONFAILING(memcpy((void*)0x20000b00, "/dev/input/event#\000", 18)); syz_open_dev(0x20000b00, 4, 0); } int main(void) { syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); install_segv_handler(); for (procid = 0; procid < 6; procid++) { if (fork() == 0) { use_temporary_dir(); do_sandbox_none(); } } sleep(1000000); return 0; }