Syzkaller hit 'WARNING in netlbl_cipsov4_add' bug. cgroup: Unknown subsys name 'perf_event' cgroup: Unknown subsys name 'net_cls' ------------[ cut here ]------------ WARNING: CPU: 1 PID: 847 at mm/page_alloc.c:4935 __alloc_pages_nodemask+0x560/0x680 Modules linked in: CPU: 1 PID: 847 Comm: syz-executor.0 Not tainted 5.10.45 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:__alloc_pages_nodemask+0x560/0x680 Code: 00 00 0c 00 0f 85 86 00 00 00 4c 89 c2 44 89 e6 44 89 f7 c6 44 24 70 00 4c 89 6c 24 58 e8 98 d8 ff ff 49 89 c7 e9 41 fd ff ff <0f> 0b e9 00 fe ff ff 4c 89 44 24 18 4c 89 44 24 10 89 74 24 0c 4c RSP: 0018:ffff8880219df3d0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 1ffff1100433be7e RCX: 0000000000000000 RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000040dc0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000015 R13: 0000000000000015 R14: 0000000000000000 R15: ffff888017a67600 FS: 0000000001ccd400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004cb7f0 CR3: 0000000021fb2004 CR4: 0000000000060ee0 Call Trace: alloc_pages_current+0x187/0x280 kmalloc_order+0x35/0x160 kmalloc_order_trace+0x14/0xf0 netlbl_cipsov4_add+0x5a9/0x23e0 genl_family_rcv_msg_doit+0x22d/0x330 genl_rcv_msg+0x33c/0x5a0 netlink_rcv_skb+0x14b/0x430 genl_rcv+0x24/0x40 netlink_unicast+0x53a/0x7e0 netlink_sendmsg+0x860/0xda0 sock_sendmsg+0x150/0x190 ____sys_sendmsg+0x709/0x870 ___sys_sendmsg+0xf3/0x170 __sys_sendmsg+0xe5/0x1b0 do_syscall_64+0x33/0x40 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff6bcffd08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609 RDX: 0000000000040000 RSI: 0000000020000380 RDI: 0000000000000004 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fff6bcffea0 R14: 000000000056bf80 R15: 000000000005bfef irq event stamp: 2589 hardirqs last enabled at (2599): [] console_unlock+0x929/0xb30 hardirqs last disabled at (2608): [] console_unlock+0x835/0xb30 softirqs last enabled at (2534): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (2527): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace e08f6c14dd401eeb ]--- Syzkaller reproducer: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$netlbl_cipso(&(0x7f0000000100), r0) sendmsg$NLBL_CIPSOV4_C_ADD(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)={&(0x7f0000000180)={0x188, r1, 0x513, 0x70bd27, 0x25dfdbff, {}, [@NLBL_CIPSOV4_A_DOI={0x8, 0x1, 0x2}, @NLBL_CIPSOV4_A_MTYPE={0x8, 0x2, 0x1}, @NLBL_CIPSOV4_A_MLSLVLLST={0xd0, 0x8, 0x0, 0x1, [{0x24, 0x7, 0x0, 0x1, [@NLBL_CIPSOV4_A_MLSLVLREM={0x8, 0x6, 0xcf}, @NLBL_CIPSOV4_A_MLSLVLLOC={0x8, 0x5, 0x2367a756}, @NLBL_CIPSOV4_A_MLSLVLREM={0x8, 0x6, 0x71}, @NLBL_CIPSOV4_A_MLSLVLLOC={0x8, 0x5, 0x70907b7b}]}, {0x3c, 0x7, 0x0, 0x1, [@NLBL_CIPSOV4_A_MLSLVLLOC={0x8, 0x5, 0x1c45570f}, @NLBL_CIPSOV4_A_MLSLVLLOC={0x8, 0x5, 0x3d8430d8}, @NLBL_CIPSOV4_A_MLSLVLREM={0x8, 0x6, 0xdb}, @NLBL_CIPSOV4_A_MLSLVLREM={0x8, 0x6, 0xdb}, @NLBL_CIPSOV4_A_MLSLVLLOC={0x8, 0x5, 0x3d443e1e}, @NLBL_CIPSOV4_A_MLSLVLLOC={0x8, 0x5, 0x7a241380}, @NLBL_CIPSOV4_A_MLSLVLREM={0x8, 0x6, 0x6b}]}, {0x34, 0x7, 0x0, 0x1, [@NLBL_CIPSOV4_A_MLSLVLREM={0x8, 0x6, 0x8c}, @NLBL_CIPSOV4_A_MLSLVLREM={0x8, 0x6, 0x7}, @NLBL_CIPSOV4_A_MLSLVLREM={0x8, 0x6, 0x75}, @NLBL_CIPSOV4_A_MLSLVLREM={0x8, 0x6, 0x2a}, @NLBL_CIPSOV4_A_MLSLVLLOC={0x8, 0x5, 0x771778d8}, @NLBL_CIPSOV4_A_MLSLVLREM={0x8, 0x6, 0xb1}]}, {0x1c, 0x7, 0x0, 0x1, [@NLBL_CIPSOV4_A_MLSLVLLOC={0x8, 0x5, 0x1b8c79f4}, @NLBL_CIPSOV4_A_MLSLVLREM={0x8, 0x6, 0xc4}, @NLBL_CIPSOV4_A_MLSLVLREM={0x8, 0x6, 0xfd}]}, {0x1c, 0x7, 0x0, 0x1, [@NLBL_CIPSOV4_A_MLSLVLLOC={0x8, 0x5, 0x193da777}, @NLBL_CIPSOV4_A_MLSLVLREM={0x8, 0x6, 0xde}, @NLBL_CIPSOV4_A_MLSLVLLOC={0x8, 0x5, 0x71fa2b6f}]}]}, @NLBL_CIPSOV4_A_MLSCATLST={0x78, 0xc, 0x0, 0x1, [{0x3c, 0xb, 0x0, 0x1, [@NLBL_CIPSOV4_A_MLSCATREM={0x8, 0xa, 0xa80a}, @NLBL_CIPSOV4_A_MLSCATREM={0x8, 0xa, 0xb357}, @NLBL_CIPSOV4_A_MLSCATLOC={0x8, 0x9, 0x6559307a}, @NLBL_CIPSOV4_A_MLSCATLOC={0x8, 0x9, 0x60053d6a}, @NLBL_CIPSOV4_A_MLSCATREM={0x8, 0xa, 0x29bb}, @NLBL_CIPSOV4_A_MLSCATLOC={0x8, 0x9, 0x5d642751}, @NLBL_CIPSOV4_A_MLSCATLOC={0x8, 0x9, 0x6b30c2fd}]}, {0x2c, 0xb, 0x0, 0x1, [@NLBL_CIPSOV4_A_MLSCATLOC={0x8, 0x9, 0x4e9097fc}, @NLBL_CIPSOV4_A_MLSCATREM={0x8, 0xa, 0xa070}, @NLBL_CIPSOV4_A_MLSCATREM={0x8, 0xa, 0x6b7c}, @NLBL_CIPSOV4_A_MLSCATREM={0x8, 0xa, 0x69ef}, @NLBL_CIPSOV4_A_MLSCATREM={0x8, 0xa, 0xbba0}]}, {0xc, 0xb, 0x0, 0x1, [@NLBL_CIPSOV4_A_MLSCATLOC={0x8, 0x9, 0x4a6d794c}]}]}, @NLBL_CIPSOV4_A_TAGLST={0x1c, 0x4, 0x0, 0x1, [{0x5, 0x3, 0x5}, {0x5, 0x3, 0x6}, {0x5, 0x3, 0x1}]}]}, 0x188}, 0x1, 0x0, 0x0, 0x20000000}, 0x40000) C reproducer: // 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 #include #include #include 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; } #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; } struct nlmsg { char* pos; int nesting; struct nlattr* nested[8]; char buf[4096]; }; static void netlink_init(struct nlmsg* nlmsg, int typ, int flags, const void* data, int size) { memset(nlmsg, 0, sizeof(*nlmsg)); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_type = typ; hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags; memcpy(hdr + 1, data, size); nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size); } static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data, int size) { struct nlattr* attr = (struct nlattr*)nlmsg->pos; attr->nla_len = sizeof(*attr) + size; attr->nla_type = typ; if (size > 0) memcpy(attr + 1, data, size); nlmsg->pos += NLMSG_ALIGN(attr->nla_len); } static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type, int* reply_len, bool dofail) { if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting) exit(1); struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf; hdr->nlmsg_len = nlmsg->pos - nlmsg->buf; struct sockaddr_nl addr; memset(&addr, 0, sizeof(addr)); addr.nl_family = AF_NETLINK; ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0, (struct sockaddr*)&addr, sizeof(addr)); if (n != (ssize_t)hdr->nlmsg_len) { if (dofail) exit(1); return -1; } n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); if (reply_len) *reply_len = 0; if (n < 0) { if (dofail) exit(1); return -1; } if (n < (ssize_t)sizeof(struct nlmsghdr)) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type == NLMSG_DONE) return 0; if (reply_len && hdr->nlmsg_type == reply_type) { *reply_len = n; return 0; } if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) { errno = EINVAL; if (dofail) exit(1); return -1; } if (hdr->nlmsg_type != NLMSG_ERROR) { errno = EINVAL; if (dofail) exit(1); return -1; } errno = -((struct nlmsgerr*)(hdr + 1))->error; return -errno; } static int netlink_query_family_id(struct nlmsg* nlmsg, int sock, const char* family_name, bool dofail) { struct genlmsghdr genlhdr; memset(&genlhdr, 0, sizeof(genlhdr)); genlhdr.cmd = CTRL_CMD_GETFAMILY; netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr)); netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name, strnlen(family_name, GENL_NAMSIZ - 1) + 1); int n = 0; int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail); if (err < 0) { return -1; } uint16_t id = 0; struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN + NLMSG_ALIGN(sizeof(genlhdr))); for (; (char*)attr < nlmsg->buf + n; attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) { if (attr->nla_type == CTRL_ATTR_FAMILY_ID) { id = *(uint16_t*)(attr + 1); break; } } if (!id) { errno = EINVAL; return -1; } recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0); return id; } const int kInitNetNsFd = 239; static long syz_init_net_socket(volatile long domain, volatile long type, volatile long proto) { return syscall(__NR_socket, domain, type, proto); } static long syz_genetlink_get_family_id(volatile long name, volatile long sock_arg) { bool dofail = false; int fd = sock_arg; if (fd < 0) { dofail = true; fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC); if (fd == -1) { return -1; } } struct nlmsg nlmsg_tmp; int ret = netlink_query_family_id(&nlmsg_tmp, fd, (char*)name, dofail); if ((int)sock_arg < 0) close(fd); if (ret < 0) { return -1; } return ret; } 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"); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { setup_test(); execute_one(); 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 < 5000) { continue; } kill_and_wait(pid, &status); break; } } } uint64_t r[2] = {0xffffffffffffffff, 0x0}; void execute_one(void) { intptr_t res = 0; res = -1; res = syz_init_net_socket(0x10, 3, 0x10); if (res != -1) r[0] = res; memcpy((void*)0x20000100, "NLBL_CIPSOv4\000", 13); res = -1; res = syz_genetlink_get_family_id(0x20000100, r[0]); if (res != -1) r[1] = res; *(uint64_t*)0x20000380 = 0; *(uint32_t*)0x20000388 = 0; *(uint64_t*)0x20000390 = 0x20000340; *(uint64_t*)0x20000340 = 0x20000180; *(uint32_t*)0x20000180 = 0x188; *(uint16_t*)0x20000184 = r[1]; *(uint16_t*)0x20000186 = 0x513; *(uint32_t*)0x20000188 = 0x70bd27; *(uint32_t*)0x2000018c = 0x25dfdbff; *(uint8_t*)0x20000190 = 1; *(uint8_t*)0x20000191 = 0; *(uint16_t*)0x20000192 = 0; *(uint16_t*)0x20000194 = 8; *(uint16_t*)0x20000196 = 1; *(uint32_t*)0x20000198 = 2; *(uint16_t*)0x2000019c = 8; *(uint16_t*)0x2000019e = 2; *(uint32_t*)0x200001a0 = 1; *(uint16_t*)0x200001a4 = 0xd0; STORE_BY_BITMASK(uint16_t, , 0x200001a6, 8, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x200001a7, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x200001a7, 1, 7, 1); *(uint16_t*)0x200001a8 = 0x24; STORE_BY_BITMASK(uint16_t, , 0x200001aa, 7, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x200001ab, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x200001ab, 1, 7, 1); *(uint16_t*)0x200001ac = 8; *(uint16_t*)0x200001ae = 6; *(uint32_t*)0x200001b0 = 0xcf; *(uint16_t*)0x200001b4 = 8; *(uint16_t*)0x200001b6 = 5; *(uint32_t*)0x200001b8 = 0x2367a756; *(uint16_t*)0x200001bc = 8; *(uint16_t*)0x200001be = 6; *(uint32_t*)0x200001c0 = 0x71; *(uint16_t*)0x200001c4 = 8; *(uint16_t*)0x200001c6 = 5; *(uint32_t*)0x200001c8 = 0x70907b7b; *(uint16_t*)0x200001cc = 0x3c; STORE_BY_BITMASK(uint16_t, , 0x200001ce, 7, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x200001cf, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x200001cf, 1, 7, 1); *(uint16_t*)0x200001d0 = 8; *(uint16_t*)0x200001d2 = 5; *(uint32_t*)0x200001d4 = 0x1c45570f; *(uint16_t*)0x200001d8 = 8; *(uint16_t*)0x200001da = 5; *(uint32_t*)0x200001dc = 0x3d8430d8; *(uint16_t*)0x200001e0 = 8; *(uint16_t*)0x200001e2 = 6; *(uint32_t*)0x200001e4 = 0xdb; *(uint16_t*)0x200001e8 = 8; *(uint16_t*)0x200001ea = 6; *(uint32_t*)0x200001ec = 0xdb; *(uint16_t*)0x200001f0 = 8; *(uint16_t*)0x200001f2 = 5; *(uint32_t*)0x200001f4 = 0x3d443e1e; *(uint16_t*)0x200001f8 = 8; *(uint16_t*)0x200001fa = 5; *(uint32_t*)0x200001fc = 0x7a241380; *(uint16_t*)0x20000200 = 8; *(uint16_t*)0x20000202 = 6; *(uint32_t*)0x20000204 = 0x6b; *(uint16_t*)0x20000208 = 0x34; STORE_BY_BITMASK(uint16_t, , 0x2000020a, 7, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x2000020b, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000020b, 1, 7, 1); *(uint16_t*)0x2000020c = 8; *(uint16_t*)0x2000020e = 6; *(uint32_t*)0x20000210 = 0x8c; *(uint16_t*)0x20000214 = 8; *(uint16_t*)0x20000216 = 6; *(uint32_t*)0x20000218 = 7; *(uint16_t*)0x2000021c = 8; *(uint16_t*)0x2000021e = 6; *(uint32_t*)0x20000220 = 0x75; *(uint16_t*)0x20000224 = 8; *(uint16_t*)0x20000226 = 6; *(uint32_t*)0x20000228 = 0x2a; *(uint16_t*)0x2000022c = 8; *(uint16_t*)0x2000022e = 5; *(uint32_t*)0x20000230 = 0x771778d8; *(uint16_t*)0x20000234 = 8; *(uint16_t*)0x20000236 = 6; *(uint32_t*)0x20000238 = 0xb1; *(uint16_t*)0x2000023c = 0x1c; STORE_BY_BITMASK(uint16_t, , 0x2000023e, 7, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x2000023f, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000023f, 1, 7, 1); *(uint16_t*)0x20000240 = 8; *(uint16_t*)0x20000242 = 5; *(uint32_t*)0x20000244 = 0x1b8c79f4; *(uint16_t*)0x20000248 = 8; *(uint16_t*)0x2000024a = 6; *(uint32_t*)0x2000024c = 0xc4; *(uint16_t*)0x20000250 = 8; *(uint16_t*)0x20000252 = 6; *(uint32_t*)0x20000254 = 0xfd; *(uint16_t*)0x20000258 = 0x1c; STORE_BY_BITMASK(uint16_t, , 0x2000025a, 7, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x2000025b, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000025b, 1, 7, 1); *(uint16_t*)0x2000025c = 8; *(uint16_t*)0x2000025e = 5; *(uint32_t*)0x20000260 = 0x193da777; *(uint16_t*)0x20000264 = 8; *(uint16_t*)0x20000266 = 6; *(uint32_t*)0x20000268 = 0xde; *(uint16_t*)0x2000026c = 8; *(uint16_t*)0x2000026e = 5; *(uint32_t*)0x20000270 = 0x71fa2b6f; *(uint16_t*)0x20000274 = 0x78; STORE_BY_BITMASK(uint16_t, , 0x20000276, 0xc, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x20000277, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x20000277, 1, 7, 1); *(uint16_t*)0x20000278 = 0x3c; STORE_BY_BITMASK(uint16_t, , 0x2000027a, 0xb, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x2000027b, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000027b, 1, 7, 1); *(uint16_t*)0x2000027c = 8; *(uint16_t*)0x2000027e = 0xa; *(uint32_t*)0x20000280 = 0xa80a; *(uint16_t*)0x20000284 = 8; *(uint16_t*)0x20000286 = 0xa; *(uint32_t*)0x20000288 = 0xb357; *(uint16_t*)0x2000028c = 8; *(uint16_t*)0x2000028e = 9; *(uint32_t*)0x20000290 = 0x6559307a; *(uint16_t*)0x20000294 = 8; *(uint16_t*)0x20000296 = 9; *(uint32_t*)0x20000298 = 0x60053d6a; *(uint16_t*)0x2000029c = 8; *(uint16_t*)0x2000029e = 0xa; *(uint32_t*)0x200002a0 = 0x29bb; *(uint16_t*)0x200002a4 = 8; *(uint16_t*)0x200002a6 = 9; *(uint32_t*)0x200002a8 = 0x5d642751; *(uint16_t*)0x200002ac = 8; *(uint16_t*)0x200002ae = 9; *(uint32_t*)0x200002b0 = 0x6b30c2fd; *(uint16_t*)0x200002b4 = 0x2c; STORE_BY_BITMASK(uint16_t, , 0x200002b6, 0xb, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x200002b7, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x200002b7, 1, 7, 1); *(uint16_t*)0x200002b8 = 8; *(uint16_t*)0x200002ba = 9; *(uint32_t*)0x200002bc = 0x4e9097fc; *(uint16_t*)0x200002c0 = 8; *(uint16_t*)0x200002c2 = 0xa; *(uint32_t*)0x200002c4 = 0xa070; *(uint16_t*)0x200002c8 = 8; *(uint16_t*)0x200002ca = 0xa; *(uint32_t*)0x200002cc = 0x6b7c; *(uint16_t*)0x200002d0 = 8; *(uint16_t*)0x200002d2 = 0xa; *(uint32_t*)0x200002d4 = 0x69ef; *(uint16_t*)0x200002d8 = 8; *(uint16_t*)0x200002da = 0xa; *(uint32_t*)0x200002dc = 0xbba0; *(uint16_t*)0x200002e0 = 0xc; STORE_BY_BITMASK(uint16_t, , 0x200002e2, 0xb, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x200002e3, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x200002e3, 1, 7, 1); *(uint16_t*)0x200002e4 = 8; *(uint16_t*)0x200002e6 = 9; *(uint32_t*)0x200002e8 = 0x4a6d794c; *(uint16_t*)0x200002ec = 0x1c; STORE_BY_BITMASK(uint16_t, , 0x200002ee, 4, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x200002ef, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x200002ef, 1, 7, 1); *(uint16_t*)0x200002f0 = 5; *(uint16_t*)0x200002f2 = 3; *(uint8_t*)0x200002f4 = 5; *(uint16_t*)0x200002f8 = 5; *(uint16_t*)0x200002fa = 3; *(uint8_t*)0x200002fc = 6; *(uint16_t*)0x20000300 = 5; *(uint16_t*)0x20000302 = 3; *(uint8_t*)0x20000304 = 1; *(uint64_t*)0x20000348 = 0x188; *(uint64_t*)0x20000398 = 1; *(uint64_t*)0x200003a0 = 0; *(uint64_t*)0x200003a8 = 0; *(uint32_t*)0x200003b0 = 0x20000000; syscall(__NR_sendmsg, r[0], 0x20000380ul, 0x40000ul); } int main(void) { syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); loop(); return 0; }