// https://syzkaller.appspot.com/bug?id=ec428a47facd594fb4f556caab1b9e504ec00a0e // 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 #include #include #include #ifndef __NR_ioctl #define __NR_ioctl 29 #endif #ifndef __NR_mmap #define __NR_mmap 222 #endif #ifndef __NR_openat #define __NR_openat 56 #endif #ifndef __NR_write #define __NR_write 64 #endif 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 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 MAX_FDS 30 #define XT_TABLE_SIZE 1536 #define XT_MAX_ENTRIES 10 struct xt_counters { uint64_t pcnt, bcnt; }; struct ipt_getinfo { char name[32]; unsigned int valid_hooks; unsigned int hook_entry[5]; unsigned int underflow[5]; unsigned int num_entries; unsigned int size; }; struct ipt_get_entries { char name[32]; unsigned int size; uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)]; }; struct ipt_replace { char name[32]; unsigned int valid_hooks; unsigned int num_entries; unsigned int size; unsigned int hook_entry[5]; unsigned int underflow[5]; unsigned int num_counters; struct xt_counters* counters; uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)]; }; struct ipt_table_desc { const char* name; struct ipt_getinfo info; struct ipt_replace replace; }; static struct ipt_table_desc ipv4_tables[] = { {.name = "filter"}, {.name = "nat"}, {.name = "mangle"}, {.name = "raw"}, {.name = "security"}, }; static struct ipt_table_desc ipv6_tables[] = { {.name = "filter"}, {.name = "nat"}, {.name = "mangle"}, {.name = "raw"}, {.name = "security"}, }; #define IPT_BASE_CTL 64 #define IPT_SO_SET_REPLACE (IPT_BASE_CTL) #define IPT_SO_GET_INFO (IPT_BASE_CTL) #define IPT_SO_GET_ENTRIES (IPT_BASE_CTL + 1) struct arpt_getinfo { char name[32]; unsigned int valid_hooks; unsigned int hook_entry[3]; unsigned int underflow[3]; unsigned int num_entries; unsigned int size; }; struct arpt_get_entries { char name[32]; unsigned int size; uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)]; }; struct arpt_replace { char name[32]; unsigned int valid_hooks; unsigned int num_entries; unsigned int size; unsigned int hook_entry[3]; unsigned int underflow[3]; unsigned int num_counters; struct xt_counters* counters; uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)]; }; struct arpt_table_desc { const char* name; struct arpt_getinfo info; struct arpt_replace replace; }; static struct arpt_table_desc arpt_tables[] = { {.name = "filter"}, }; #define ARPT_BASE_CTL 96 #define ARPT_SO_SET_REPLACE (ARPT_BASE_CTL) #define ARPT_SO_GET_INFO (ARPT_BASE_CTL) #define ARPT_SO_GET_ENTRIES (ARPT_BASE_CTL + 1) static void checkpoint_iptables(struct ipt_table_desc* tables, int num_tables, int family, int level) { int fd = socket(family, SOCK_STREAM, IPPROTO_TCP); if (fd == -1) { switch (errno) { case EAFNOSUPPORT: case ENOPROTOOPT: case ENOENT: return; } exit(1); } for (int i = 0; i < num_tables; i++) { struct ipt_table_desc* table = &tables[i]; strcpy(table->info.name, table->name); strcpy(table->replace.name, table->name); socklen_t optlen = sizeof(table->info); if (getsockopt(fd, level, IPT_SO_GET_INFO, &table->info, &optlen)) { switch (errno) { case EPERM: case ENOENT: case ENOPROTOOPT: continue; } exit(1); } if (table->info.size > sizeof(table->replace.entrytable)) exit(1); if (table->info.num_entries > XT_MAX_ENTRIES) exit(1); struct ipt_get_entries entries; memset(&entries, 0, sizeof(entries)); strcpy(entries.name, table->name); entries.size = table->info.size; optlen = sizeof(entries) - sizeof(entries.entrytable) + table->info.size; if (getsockopt(fd, level, IPT_SO_GET_ENTRIES, &entries, &optlen)) exit(1); table->replace.valid_hooks = table->info.valid_hooks; table->replace.num_entries = table->info.num_entries; table->replace.size = table->info.size; memcpy(table->replace.hook_entry, table->info.hook_entry, sizeof(table->replace.hook_entry)); memcpy(table->replace.underflow, table->info.underflow, sizeof(table->replace.underflow)); memcpy(table->replace.entrytable, entries.entrytable, table->info.size); } close(fd); } static void reset_iptables(struct ipt_table_desc* tables, int num_tables, int family, int level) { int fd = socket(family, SOCK_STREAM, IPPROTO_TCP); if (fd == -1) { switch (errno) { case EAFNOSUPPORT: case ENOPROTOOPT: case ENOENT: return; } exit(1); } for (int i = 0; i < num_tables; i++) { struct ipt_table_desc* table = &tables[i]; if (table->info.valid_hooks == 0) continue; struct ipt_getinfo info; memset(&info, 0, sizeof(info)); strcpy(info.name, table->name); socklen_t optlen = sizeof(info); if (getsockopt(fd, level, IPT_SO_GET_INFO, &info, &optlen)) exit(1); if (memcmp(&table->info, &info, sizeof(table->info)) == 0) { struct ipt_get_entries entries; memset(&entries, 0, sizeof(entries)); strcpy(entries.name, table->name); entries.size = table->info.size; optlen = sizeof(entries) - sizeof(entries.entrytable) + entries.size; if (getsockopt(fd, level, IPT_SO_GET_ENTRIES, &entries, &optlen)) exit(1); if (memcmp(table->replace.entrytable, entries.entrytable, table->info.size) == 0) continue; } struct xt_counters counters[XT_MAX_ENTRIES]; table->replace.num_counters = info.num_entries; table->replace.counters = counters; optlen = sizeof(table->replace) - sizeof(table->replace.entrytable) + table->replace.size; if (setsockopt(fd, level, IPT_SO_SET_REPLACE, &table->replace, optlen)) exit(1); } close(fd); } static void checkpoint_arptables(void) { int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (fd == -1) { switch (errno) { case EAFNOSUPPORT: case ENOPROTOOPT: case ENOENT: return; } exit(1); } for (unsigned i = 0; i < sizeof(arpt_tables) / sizeof(arpt_tables[0]); i++) { struct arpt_table_desc* table = &arpt_tables[i]; strcpy(table->info.name, table->name); strcpy(table->replace.name, table->name); socklen_t optlen = sizeof(table->info); if (getsockopt(fd, SOL_IP, ARPT_SO_GET_INFO, &table->info, &optlen)) { switch (errno) { case EPERM: case ENOENT: case ENOPROTOOPT: continue; } exit(1); } if (table->info.size > sizeof(table->replace.entrytable)) exit(1); if (table->info.num_entries > XT_MAX_ENTRIES) exit(1); struct arpt_get_entries entries; memset(&entries, 0, sizeof(entries)); strcpy(entries.name, table->name); entries.size = table->info.size; optlen = sizeof(entries) - sizeof(entries.entrytable) + table->info.size; if (getsockopt(fd, SOL_IP, ARPT_SO_GET_ENTRIES, &entries, &optlen)) exit(1); table->replace.valid_hooks = table->info.valid_hooks; table->replace.num_entries = table->info.num_entries; table->replace.size = table->info.size; memcpy(table->replace.hook_entry, table->info.hook_entry, sizeof(table->replace.hook_entry)); memcpy(table->replace.underflow, table->info.underflow, sizeof(table->replace.underflow)); memcpy(table->replace.entrytable, entries.entrytable, table->info.size); } close(fd); } static void reset_arptables() { int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (fd == -1) { switch (errno) { case EAFNOSUPPORT: case ENOPROTOOPT: case ENOENT: return; } exit(1); } for (unsigned i = 0; i < sizeof(arpt_tables) / sizeof(arpt_tables[0]); i++) { struct arpt_table_desc* table = &arpt_tables[i]; if (table->info.valid_hooks == 0) continue; struct arpt_getinfo info; memset(&info, 0, sizeof(info)); strcpy(info.name, table->name); socklen_t optlen = sizeof(info); if (getsockopt(fd, SOL_IP, ARPT_SO_GET_INFO, &info, &optlen)) exit(1); if (memcmp(&table->info, &info, sizeof(table->info)) == 0) { struct arpt_get_entries entries; memset(&entries, 0, sizeof(entries)); strcpy(entries.name, table->name); entries.size = table->info.size; optlen = sizeof(entries) - sizeof(entries.entrytable) + entries.size; if (getsockopt(fd, SOL_IP, ARPT_SO_GET_ENTRIES, &entries, &optlen)) exit(1); if (memcmp(table->replace.entrytable, entries.entrytable, table->info.size) == 0) continue; } else { } struct xt_counters counters[XT_MAX_ENTRIES]; table->replace.num_counters = info.num_entries; table->replace.counters = counters; optlen = sizeof(table->replace) - sizeof(table->replace.entrytable) + table->replace.size; if (setsockopt(fd, SOL_IP, ARPT_SO_SET_REPLACE, &table->replace, optlen)) exit(1); } close(fd); } #define NF_BR_NUMHOOKS 6 #define EBT_TABLE_MAXNAMELEN 32 #define EBT_CHAIN_MAXNAMELEN 32 #define EBT_BASE_CTL 128 #define EBT_SO_SET_ENTRIES (EBT_BASE_CTL) #define EBT_SO_GET_INFO (EBT_BASE_CTL) #define EBT_SO_GET_ENTRIES (EBT_SO_GET_INFO + 1) #define EBT_SO_GET_INIT_INFO (EBT_SO_GET_ENTRIES + 1) #define EBT_SO_GET_INIT_ENTRIES (EBT_SO_GET_INIT_INFO + 1) struct ebt_replace { char name[EBT_TABLE_MAXNAMELEN]; unsigned int valid_hooks; unsigned int nentries; unsigned int entries_size; struct ebt_entries* hook_entry[NF_BR_NUMHOOKS]; unsigned int num_counters; struct ebt_counter* counters; char* entries; }; struct ebt_entries { unsigned int distinguisher; char name[EBT_CHAIN_MAXNAMELEN]; unsigned int counter_offset; int policy; unsigned int nentries; char data[0] __attribute__((aligned(__alignof__(struct ebt_replace)))); }; struct ebt_table_desc { const char* name; struct ebt_replace replace; char entrytable[XT_TABLE_SIZE]; }; static struct ebt_table_desc ebt_tables[] = { {.name = "filter"}, {.name = "nat"}, {.name = "broute"}, }; static void checkpoint_ebtables(void) { int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (fd == -1) { switch (errno) { case EAFNOSUPPORT: case ENOPROTOOPT: case ENOENT: return; } exit(1); } for (size_t i = 0; i < sizeof(ebt_tables) / sizeof(ebt_tables[0]); i++) { struct ebt_table_desc* table = &ebt_tables[i]; strcpy(table->replace.name, table->name); socklen_t optlen = sizeof(table->replace); if (getsockopt(fd, SOL_IP, EBT_SO_GET_INIT_INFO, &table->replace, &optlen)) { switch (errno) { case EPERM: case ENOENT: case ENOPROTOOPT: continue; } exit(1); } if (table->replace.entries_size > sizeof(table->entrytable)) exit(1); table->replace.num_counters = 0; table->replace.entries = table->entrytable; optlen = sizeof(table->replace) + table->replace.entries_size; if (getsockopt(fd, SOL_IP, EBT_SO_GET_INIT_ENTRIES, &table->replace, &optlen)) exit(1); } close(fd); } static void reset_ebtables() { int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (fd == -1) { switch (errno) { case EAFNOSUPPORT: case ENOPROTOOPT: case ENOENT: return; } exit(1); } for (unsigned i = 0; i < sizeof(ebt_tables) / sizeof(ebt_tables[0]); i++) { struct ebt_table_desc* table = &ebt_tables[i]; if (table->replace.valid_hooks == 0) continue; struct ebt_replace replace; memset(&replace, 0, sizeof(replace)); strcpy(replace.name, table->name); socklen_t optlen = sizeof(replace); if (getsockopt(fd, SOL_IP, EBT_SO_GET_INFO, &replace, &optlen)) exit(1); replace.num_counters = 0; table->replace.entries = 0; for (unsigned h = 0; h < NF_BR_NUMHOOKS; h++) table->replace.hook_entry[h] = 0; if (memcmp(&table->replace, &replace, sizeof(table->replace)) == 0) { char entrytable[XT_TABLE_SIZE]; memset(&entrytable, 0, sizeof(entrytable)); replace.entries = entrytable; optlen = sizeof(replace) + replace.entries_size; if (getsockopt(fd, SOL_IP, EBT_SO_GET_ENTRIES, &replace, &optlen)) exit(1); if (memcmp(table->entrytable, entrytable, replace.entries_size) == 0) continue; } for (unsigned j = 0, h = 0; h < NF_BR_NUMHOOKS; h++) { if (table->replace.valid_hooks & (1 << h)) { table->replace.hook_entry[h] = (struct ebt_entries*)table->entrytable + j; j++; } } table->replace.entries = table->entrytable; optlen = sizeof(table->replace) + table->replace.entries_size; if (setsockopt(fd, SOL_IP, EBT_SO_SET_ENTRIES, &table->replace, optlen)) exit(1); } close(fd); } static void checkpoint_net_namespace(void) { checkpoint_ebtables(); checkpoint_arptables(); checkpoint_iptables(ipv4_tables, sizeof(ipv4_tables) / sizeof(ipv4_tables[0]), AF_INET, SOL_IP); checkpoint_iptables(ipv6_tables, sizeof(ipv6_tables) / sizeof(ipv6_tables[0]), AF_INET6, SOL_IPV6); } static void reset_net_namespace(void) { reset_ebtables(); reset_arptables(); reset_iptables(ipv4_tables, sizeof(ipv4_tables) / sizeof(ipv4_tables[0]), AF_INET, SOL_IP); reset_iptables(ipv6_tables, sizeof(ipv6_tables) / sizeof(ipv6_tables[0]), AF_INET6, SOL_IPV6); } static void setup_gadgetfs(); static void setup_binderfs(); static void setup_fusectl(); static void sandbox_common_mount_tmpfs(void) { write_file("/proc/sys/fs/mount-max", "100000"); if (mkdir("./syz-tmp", 0777)) exit(1); if (mount("", "./syz-tmp", "tmpfs", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot", 0777)) exit(1); if (mkdir("./syz-tmp/newroot/dev", 0700)) exit(1); unsigned bind_mount_flags = MS_BIND | MS_REC | MS_PRIVATE; if (mount("/dev", "./syz-tmp/newroot/dev", NULL, bind_mount_flags, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/proc", 0700)) exit(1); if (mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL)) exit(1); if (mkdir("./syz-tmp/newroot/selinux", 0700)) exit(1); const char* selinux_path = "./syz-tmp/newroot/selinux"; if (mount("/selinux", selinux_path, NULL, bind_mount_flags, NULL)) { if (errno != ENOENT) exit(1); if (mount("/sys/fs/selinux", selinux_path, NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); } if (mkdir("./syz-tmp/newroot/sys", 0700)) exit(1); if (mount("/sys", "./syz-tmp/newroot/sys", 0, bind_mount_flags, NULL)) exit(1); if (mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, bind_mount_flags, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/newroot/syz-inputs", 0700)) exit(1); if (mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, bind_mount_flags | MS_RDONLY, NULL) && errno != ENOENT) exit(1); if (mkdir("./syz-tmp/pivot", 0777)) exit(1); if (syscall(SYS_pivot_root, "./syz-tmp", "./syz-tmp/pivot")) { if (chdir("./syz-tmp")) exit(1); } else { if (chdir("/")) exit(1); if (umount2("./pivot", MNT_DETACH)) exit(1); } if (chroot("./newroot")) exit(1); if (chdir("/")) exit(1); setup_gadgetfs(); setup_binderfs(); setup_fusectl(); } static void setup_gadgetfs() { if (mkdir("/dev/gadgetfs", 0777)) { } if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) { } } static void setup_fusectl() { if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) { } } static void setup_binderfs() { if (mkdir("/dev/binderfs", 0777)) { } if (mount("binder", "/dev/binderfs", "binder", 0, NULL)) { } if (symlink("/dev/binderfs", "./binderfs")) { } } static void loop(); static void sandbox_common() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); if (getppid() == 1) exit(1); 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 = 128 << 20; setrlimit(RLIMIT_CORE, &rlim); rlim.rlim_cur = rlim.rlim_max = 256; setrlimit(RLIMIT_NOFILE, &rlim); if (unshare(CLONE_NEWNS)) { } if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) { } 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); } static 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); sandbox_common(); drop_caps(); if (unshare(CLONE_NEWNET)) { } write_file("/proc/sys/net/ipv4/ping_group_range", "0 65535"); sandbox_common_mount_tmpfs(); loop(); 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_loop() { checkpoint_net_namespace(); } static void reset_loop() { reset_net_namespace(); } 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() { for (int fd = 3; fd < MAX_FDS; fd++) close(fd); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { setup_loop(); int iter = 0; for (;; iter++) { reset_loop(); int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { setup_test(); execute_one(); close_fds(); 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; } } } uint64_t r[1] = {0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } // openat$nci arguments: [ // fd: const = 0xffffffffffffff9c (8 bytes) // file: ptr[in, buffer] { // buffer: {2f 64 65 76 2f 76 69 72 74 75 61 6c 5f 6e 63 69 00} (length // 0x11) // } // flags: const = 0x2 (4 bytes) // mode: const = 0x0 (2 bytes) // ] // returns fd_nci memcpy((void*)0x20000240, "/dev/virtual_nci\000", 17); syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000240ul, /*flags=*/2, /*mode=*/0); // openat$uinput arguments: [ // fd: const = 0xffffffffffffff9c (8 bytes) // file: ptr[in, buffer] { // buffer: {2f 64 65 76 2f 75 69 6e 70 75 74 00} (length 0xc) // } // flags: uinput_open_flags = 0x2 (4 bytes) // mode: const = 0x0 (2 bytes) // ] // returns fd_uinput memcpy((void*)0x20000a40, "/dev/uinput\000", 12); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000a40ul, /*flags=O_RDWR*/ 2, /*mode=*/0); if (res != -1) r[0] = res; // write$uinput_user_dev arguments: [ // fd: fd_uinput (resource) // data: ptr[in, uinput_user_dev] { // uinput_user_dev { // name: buffer: {73 79 7a 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00} (length 0x50) id: // input_id { // bustype: int16 = 0x0 (2 bytes) // vendor: int16 = 0x0 (2 bytes) // product: int16 = 0x0 (2 bytes) // version: int16 = 0x0 (2 bytes) // } // ff_effects_max: int32 = 0x14 (4 bytes) // absmax: array[int32] { // int32 = 0x80000000 (4 bytes) // int32 = 0x3 (4 bytes) // int32 = 0x3ff (4 bytes) // int32 = 0x8 (4 bytes) // int32 = 0xfffffffd (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x9 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xd (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x9 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x2 (4 bytes) // int32 = 0xffffffff (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x4 (4 bytes) // int32 = 0x8 (4 bytes) // int32 = 0xffffffff (4 bytes) // int32 = 0x1 (4 bytes) // int32 = 0x7 (4 bytes) // int32 = 0xf5b1 (4 bytes) // int32 = 0xffffffff (4 bytes) // int32 = 0x10000000 (4 bytes) // int32 = 0x99 (4 bytes) // int32 = 0x20000000 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x9 (4 bytes) // int32 = 0x2 (4 bytes) // int32 = 0x8 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x4 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x2 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xfffffffe (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x1 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // } // absmin: array[int32] { // int32 = 0x3 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xe (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x80000 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xedc0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x5ee (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xb6 (4 bytes) // int32 = 0xa0000000 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x4 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x9 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xfffffff8 (4 bytes) // int32 = 0x2 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x2000079 (4 bytes) // int32 = 0x400 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x10000 (4 bytes) // int32 = 0x40000 (4 bytes) // int32 = 0x6 (4 bytes) // int32 = 0xc0800000 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xfffffffd (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x800081 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x4c6 (4 bytes) // int32 = 0x2 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x476f (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // } // absfuzz: array[int32] { // int32 = 0x0 (4 bytes) // int32 = 0x7c (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x4 (4 bytes) // int32 = 0x3 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x1 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xfffffffd (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xfffffffe (4 bytes) // int32 = 0x2 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x9 (4 bytes) // int32 = 0x4 (4 bytes) // int32 = 0x1 (4 bytes) // int32 = 0xfffffffd (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x40000 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xff (4 bytes) // int32 = 0x6 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x200000 (4 bytes) // int32 = 0x80000000 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xf (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xfffffffd (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xfffffffc (4 bytes) // int32 = 0x4 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x800 (4 bytes) // int32 = 0x0 (4 bytes) // } // absflat: array[int32] { // int32 = 0x2 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x6 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xe (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xffffffff (4 bytes) // int32 = 0x90000000 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x5 (4 bytes) // int32 = 0xfffffff8 (4 bytes) // int32 = 0x4 (4 bytes) // int32 = 0x800 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x40000000 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x2 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x4 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x10 (4 bytes) // int32 = 0x5 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x8001 (4 bytes) // int32 = 0x80 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x800 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x6 (4 bytes) // int32 = 0x6 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x4000 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x2 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x8000000 (4 bytes) // int32 = 0x4 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0x0 (4 bytes) // int32 = 0xffffe (4 bytes) // int32 = 0x0 (4 bytes) // } // } // } // len: len = 0x45c (8 bytes) // ] memcpy((void*)0x20000080, "syz0\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); *(uint16_t*)0x200000d0 = 0; *(uint16_t*)0x200000d2 = 0; *(uint16_t*)0x200000d4 = 0; *(uint16_t*)0x200000d6 = 0; *(uint32_t*)0x200000d8 = 0x14; *(uint32_t*)0x200000dc = 0x80000000; *(uint32_t*)0x200000e0 = 3; *(uint32_t*)0x200000e4 = 0x3ff; *(uint32_t*)0x200000e8 = 8; *(uint32_t*)0x200000ec = 0xfffffffd; *(uint32_t*)0x200000f0 = 0; *(uint32_t*)0x200000f4 = 0; *(uint32_t*)0x200000f8 = 0; *(uint32_t*)0x200000fc = 0; *(uint32_t*)0x20000100 = 0; *(uint32_t*)0x20000104 = 0; *(uint32_t*)0x20000108 = 0; *(uint32_t*)0x2000010c = 9; *(uint32_t*)0x20000110 = 0; *(uint32_t*)0x20000114 = 0; *(uint32_t*)0x20000118 = 0xd; *(uint32_t*)0x2000011c = 0; *(uint32_t*)0x20000120 = 0; *(uint32_t*)0x20000124 = 9; *(uint32_t*)0x20000128 = 0; *(uint32_t*)0x2000012c = 0; *(uint32_t*)0x20000130 = 2; *(uint32_t*)0x20000134 = -1; *(uint32_t*)0x20000138 = 0; *(uint32_t*)0x2000013c = 0; *(uint32_t*)0x20000140 = 0; *(uint32_t*)0x20000144 = 0; *(uint32_t*)0x20000148 = 4; *(uint32_t*)0x2000014c = 8; *(uint32_t*)0x20000150 = -1; *(uint32_t*)0x20000154 = 1; *(uint32_t*)0x20000158 = 7; *(uint32_t*)0x2000015c = 0xf5b1; *(uint32_t*)0x20000160 = -1; *(uint32_t*)0x20000164 = 0x10000000; *(uint32_t*)0x20000168 = 0x99; *(uint32_t*)0x2000016c = 0x20000000; *(uint32_t*)0x20000170 = 0; *(uint32_t*)0x20000174 = 0; *(uint32_t*)0x20000178 = 0; *(uint32_t*)0x2000017c = 0; *(uint32_t*)0x20000180 = 0; *(uint32_t*)0x20000184 = 0; *(uint32_t*)0x20000188 = 0; *(uint32_t*)0x2000018c = 9; *(uint32_t*)0x20000190 = 2; *(uint32_t*)0x20000194 = 8; *(uint32_t*)0x20000198 = 0; *(uint32_t*)0x2000019c = 0; *(uint32_t*)0x200001a0 = 0; *(uint32_t*)0x200001a4 = 4; *(uint32_t*)0x200001a8 = 0; *(uint32_t*)0x200001ac = 0; *(uint32_t*)0x200001b0 = 0; *(uint32_t*)0x200001b4 = 0; *(uint32_t*)0x200001b8 = 0; *(uint32_t*)0x200001bc = 2; *(uint32_t*)0x200001c0 = 0; *(uint32_t*)0x200001c4 = 0xfffffffe; *(uint32_t*)0x200001c8 = 0; *(uint32_t*)0x200001cc = 0; *(uint32_t*)0x200001d0 = 1; *(uint32_t*)0x200001d4 = 0; *(uint32_t*)0x200001d8 = 0; *(uint32_t*)0x200001dc = 3; *(uint32_t*)0x200001e0 = 0; *(uint32_t*)0x200001e4 = 0; *(uint32_t*)0x200001e8 = 0xe; *(uint32_t*)0x200001ec = 0; *(uint32_t*)0x200001f0 = 0x80000; *(uint32_t*)0x200001f4 = 0; *(uint32_t*)0x200001f8 = 0xedc0; *(uint32_t*)0x200001fc = 0; *(uint32_t*)0x20000200 = 0x5ee; *(uint32_t*)0x20000204 = 0; *(uint32_t*)0x20000208 = 0; *(uint32_t*)0x2000020c = 0; *(uint32_t*)0x20000210 = 0; *(uint32_t*)0x20000214 = 0; *(uint32_t*)0x20000218 = 0; *(uint32_t*)0x2000021c = 0xb6; *(uint32_t*)0x20000220 = 0xa0000000; *(uint32_t*)0x20000224 = 0; *(uint32_t*)0x20000228 = 0; *(uint32_t*)0x2000022c = 0; *(uint32_t*)0x20000230 = 4; *(uint32_t*)0x20000234 = 0; *(uint32_t*)0x20000238 = 0; *(uint32_t*)0x2000023c = 0; *(uint32_t*)0x20000240 = 0; *(uint32_t*)0x20000244 = 0; *(uint32_t*)0x20000248 = 9; *(uint32_t*)0x2000024c = 0; *(uint32_t*)0x20000250 = 0; *(uint32_t*)0x20000254 = 0xfffffff8; *(uint32_t*)0x20000258 = 2; *(uint32_t*)0x2000025c = 0; *(uint32_t*)0x20000260 = 0x2000079; *(uint32_t*)0x20000264 = 0x400; *(uint32_t*)0x20000268 = 0; *(uint32_t*)0x2000026c = 0; *(uint32_t*)0x20000270 = 0x10000; *(uint32_t*)0x20000274 = 0x40000; *(uint32_t*)0x20000278 = 6; *(uint32_t*)0x2000027c = 0xc0800000; *(uint32_t*)0x20000280 = 0; *(uint32_t*)0x20000284 = 0; *(uint32_t*)0x20000288 = 0; *(uint32_t*)0x2000028c = 0; *(uint32_t*)0x20000290 = 0; *(uint32_t*)0x20000294 = 0; *(uint32_t*)0x20000298 = 0; *(uint32_t*)0x2000029c = 0; *(uint32_t*)0x200002a0 = 0xfffffffd; *(uint32_t*)0x200002a4 = 0; *(uint32_t*)0x200002a8 = 0; *(uint32_t*)0x200002ac = 0; *(uint32_t*)0x200002b0 = 0x800081; *(uint32_t*)0x200002b4 = 0; *(uint32_t*)0x200002b8 = 0; *(uint32_t*)0x200002bc = 0; *(uint32_t*)0x200002c0 = 0x4c6; *(uint32_t*)0x200002c4 = 2; *(uint32_t*)0x200002c8 = 0; *(uint32_t*)0x200002cc = 0x476f; *(uint32_t*)0x200002d0 = 0; *(uint32_t*)0x200002d4 = 0; *(uint32_t*)0x200002d8 = 0; *(uint32_t*)0x200002dc = 0; *(uint32_t*)0x200002e0 = 0x7c; *(uint32_t*)0x200002e4 = 0; *(uint32_t*)0x200002e8 = 4; *(uint32_t*)0x200002ec = 3; *(uint32_t*)0x200002f0 = 0; *(uint32_t*)0x200002f4 = 0; *(uint32_t*)0x200002f8 = 0; *(uint32_t*)0x200002fc = 1; *(uint32_t*)0x20000300 = 0; *(uint32_t*)0x20000304 = 0xfffffffd; *(uint32_t*)0x20000308 = 0; *(uint32_t*)0x2000030c = 0; *(uint32_t*)0x20000310 = 0; *(uint32_t*)0x20000314 = 0; *(uint32_t*)0x20000318 = 0; *(uint32_t*)0x2000031c = 0; *(uint32_t*)0x20000320 = 0; *(uint32_t*)0x20000324 = 0; *(uint32_t*)0x20000328 = 0; *(uint32_t*)0x2000032c = 0; *(uint32_t*)0x20000330 = 0xfffffffe; *(uint32_t*)0x20000334 = 2; *(uint32_t*)0x20000338 = 0; *(uint32_t*)0x2000033c = 0; *(uint32_t*)0x20000340 = 9; *(uint32_t*)0x20000344 = 4; *(uint32_t*)0x20000348 = 1; *(uint32_t*)0x2000034c = 0xfffffffd; *(uint32_t*)0x20000350 = 0; *(uint32_t*)0x20000354 = 0; *(uint32_t*)0x20000358 = 0; *(uint32_t*)0x2000035c = 0x40000; *(uint32_t*)0x20000360 = 0; *(uint32_t*)0x20000364 = 0; *(uint32_t*)0x20000368 = 0xff; *(uint32_t*)0x2000036c = 6; *(uint32_t*)0x20000370 = 0; *(uint32_t*)0x20000374 = 0; *(uint32_t*)0x20000378 = 0; *(uint32_t*)0x2000037c = 0; *(uint32_t*)0x20000380 = 0x200000; *(uint32_t*)0x20000384 = 0x80000000; *(uint32_t*)0x20000388 = 0; *(uint32_t*)0x2000038c = 0; *(uint32_t*)0x20000390 = 0; *(uint32_t*)0x20000394 = 0; *(uint32_t*)0x20000398 = 0; *(uint32_t*)0x2000039c = 0; *(uint32_t*)0x200003a0 = 0; *(uint32_t*)0x200003a4 = 0xf; *(uint32_t*)0x200003a8 = 0; *(uint32_t*)0x200003ac = 0; *(uint32_t*)0x200003b0 = 0; *(uint32_t*)0x200003b4 = 0xfffffffd; *(uint32_t*)0x200003b8 = 0; *(uint32_t*)0x200003bc = 0; *(uint32_t*)0x200003c0 = 0xfffffffc; *(uint32_t*)0x200003c4 = 4; *(uint32_t*)0x200003c8 = 0; *(uint32_t*)0x200003cc = 0; *(uint32_t*)0x200003d0 = 0; *(uint32_t*)0x200003d4 = 0x800; *(uint32_t*)0x200003d8 = 0; *(uint32_t*)0x200003dc = 2; *(uint32_t*)0x200003e0 = 0; *(uint32_t*)0x200003e4 = 6; *(uint32_t*)0x200003e8 = 0; *(uint32_t*)0x200003ec = 0xe; *(uint32_t*)0x200003f0 = 0; *(uint32_t*)0x200003f4 = -1; *(uint32_t*)0x200003f8 = 0x90000000; *(uint32_t*)0x200003fc = 0; *(uint32_t*)0x20000400 = 0; *(uint32_t*)0x20000404 = 0; *(uint32_t*)0x20000408 = 5; *(uint32_t*)0x2000040c = 0xfffffff8; *(uint32_t*)0x20000410 = 4; *(uint32_t*)0x20000414 = 0x800; *(uint32_t*)0x20000418 = 0; *(uint32_t*)0x2000041c = 0; *(uint32_t*)0x20000420 = 0; *(uint32_t*)0x20000424 = 0; *(uint32_t*)0x20000428 = 0; *(uint32_t*)0x2000042c = 0; *(uint32_t*)0x20000430 = 0x40000000; *(uint32_t*)0x20000434 = 0; *(uint32_t*)0x20000438 = 2; *(uint32_t*)0x2000043c = 0; *(uint32_t*)0x20000440 = 0; *(uint32_t*)0x20000444 = 0; *(uint32_t*)0x20000448 = 0; *(uint32_t*)0x2000044c = 0; *(uint32_t*)0x20000450 = 4; *(uint32_t*)0x20000454 = 0; *(uint32_t*)0x20000458 = 0; *(uint32_t*)0x2000045c = 0; *(uint32_t*)0x20000460 = 0; *(uint32_t*)0x20000464 = 0; *(uint32_t*)0x20000468 = 0; *(uint32_t*)0x2000046c = 0x10; *(uint32_t*)0x20000470 = 5; *(uint32_t*)0x20000474 = 0; *(uint32_t*)0x20000478 = 0; *(uint32_t*)0x2000047c = 0; *(uint32_t*)0x20000480 = 0; *(uint32_t*)0x20000484 = 0x8001; *(uint32_t*)0x20000488 = 0x80; *(uint32_t*)0x2000048c = 0; *(uint32_t*)0x20000490 = 0x800; *(uint32_t*)0x20000494 = 0; *(uint32_t*)0x20000498 = 6; *(uint32_t*)0x2000049c = 6; *(uint32_t*)0x200004a0 = 0; *(uint32_t*)0x200004a4 = 0; *(uint32_t*)0x200004a8 = 0; *(uint32_t*)0x200004ac = 0x4000; *(uint32_t*)0x200004b0 = 0; *(uint32_t*)0x200004b4 = 2; *(uint32_t*)0x200004b8 = 0; *(uint32_t*)0x200004bc = 0; *(uint32_t*)0x200004c0 = 0x8000000; *(uint32_t*)0x200004c4 = 4; *(uint32_t*)0x200004c8 = 0; *(uint32_t*)0x200004cc = 0; *(uint32_t*)0x200004d0 = 0; *(uint32_t*)0x200004d4 = 0xffffe; *(uint32_t*)0x200004d8 = 0; syscall(__NR_write, /*fd=*/r[0], /*data=*/0x20000080ul, /*len=*/0x45cul); // ioctl$UI_SET_EVBIT arguments: [ // fd: fd_uinput (resource) // cmd: const = 0x40045564 (4 bytes) // arg: intptr = 0x5 (8 bytes) // ] syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x40045564, /*arg=*/5ul); // ioctl$UI_SET_SWBIT arguments: [ // fd: fd_uinput (resource) // cmd: const = 0x4004556d (4 bytes) // arg: intptr = 0x3 (8 bytes) // ] syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x4004556d, /*arg=*/3ul); // ioctl$UI_DEV_CREATE arguments: [ // fd: fd_uinput (resource) // cmd: const = 0x5501 (4 bytes) // ] syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x5501, 0); } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*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=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; do_sandbox_none(); return 0; }