// https://syzkaller.appspot.com/bug?id=8104a8dead4f053580f41aa253534339c6c5b768 // 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 #ifndef __NR_bpf #define __NR_bpf 321 #endif static unsigned long long procid; 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; } 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[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; *(uint32_t*)0x20000340 = 2; *(uint32_t*)0x20000344 = 4; *(uint32_t*)0x20000348 = 8; *(uint32_t*)0x2000034c = 1; *(uint32_t*)0x20000350 = 0x80; *(uint32_t*)0x20000354 = -1; *(uint32_t*)0x20000358 = 0; memset((void*)0x2000035c, 0, 16); *(uint32_t*)0x2000036c = 0; *(uint32_t*)0x20000370 = -1; *(uint32_t*)0x20000374 = 0; *(uint32_t*)0x20000378 = 0; *(uint32_t*)0x2000037c = 0; *(uint64_t*)0x20000380 = 0; res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x20000340ul, /*size=*/0x48ul); if (res != -1) r[0] = res; *(uint32_t*)0x20000480 = r[0]; syscall(__NR_bpf, /*cmd=*/0x16ul, /*arg=*/0x20000480ul, /*size=*/4ul); *(uint32_t*)0x200004c0 = 0x11; *(uint32_t*)0x200004c4 = 0x18; *(uint64_t*)0x200004c8 = 0x200001c0; memcpy((void*)0x200001c0, "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xb7" "\x08\x00\x00\x00\x00\x00\x00\x7b\x8a\xf8\xff\x00\x00\x00\x00\xb7\x08" "\x00\x00\x00\x00\x00\x00\x7b\x8a\xf0\xff\x00\x00\x00\x00\xbf\xa1\x00" "\x00\x00\x00\x00\x00\x07\x01\x00\x00\xf8\xff\xff\xff\xbf\xa4\x00\x00" "\x00\x00\x00\x00\x07\x04\x00\x00\xf0\xff\xff\xff\xb7\x02\x00\x00\x00" "\x00\x00\x00\x18\x23\x00\x00", 92); *(uint32_t*)0x2000021c = r[0]; memcpy( (void*)0x20000220, "\x00\x00\x00\x00\x00\x00\x00\x00\xb7\x05\x00\x00\x00\x00\x00\x00\x85\x00" "\x00\x00\xa5\x00\x00\x00\x18\x01\x00\x00\x20\x20\x64\x05\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\xa5\x00\x00\x00\x08\x00\x00\x00\x95", 89); *(uint64_t*)0x200004d0 = 0x20000600; memcpy((void*)0x20000600, "GPL\000", 4); *(uint32_t*)0x200004d8 = 0; *(uint32_t*)0x200004dc = 0; *(uint64_t*)0x200004e0 = 0; *(uint32_t*)0x200004e8 = 0; *(uint32_t*)0x200004ec = 0; memset((void*)0x200004f0, 0, 16); *(uint32_t*)0x20000500 = 0; *(uint32_t*)0x20000504 = 0; *(uint32_t*)0x20000508 = -1; *(uint32_t*)0x2000050c = 0; *(uint64_t*)0x20000510 = 0; *(uint32_t*)0x20000518 = 0; *(uint32_t*)0x2000051c = 0; *(uint64_t*)0x20000520 = 0; *(uint32_t*)0x20000528 = 0; *(uint32_t*)0x2000052c = 0; *(uint32_t*)0x20000530 = 0; *(uint32_t*)0x20000534 = 0; *(uint64_t*)0x20000538 = 0; *(uint64_t*)0x20000540 = 0; *(uint32_t*)0x20000548 = 0; *(uint32_t*)0x2000054c = 0; res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200004c0ul, /*size=*/0x90ul); if (res != -1) r[1] = res; *(uint64_t*)0x200001c0 = 0x20000440; memcpy((void*)0x20000440, "kfree\000", 6); *(uint32_t*)0x200001c8 = r[1]; syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x200001c0ul, /*size=*/0x10ul); *(uint32_t*)0x20000b40 = 0x11; *(uint32_t*)0x20000b44 = 8; *(uint64_t*)0x20000b48 = 0x200026c0; memcpy( (void*)0x200026c0, "\x62\x0a\xf8\xff\x0c\x20\x00\x21\xbf\xa1\x00\x00\x00\x00\x00\x00\x07\x01" "\x00\x00\xf8\xff\xff\xff\xb7\x02\x00\x00\x03\x00\x00\x00\xbd\x12\x00\x00" "\x00\x00\x00\x00\x85\x00\x00\x00\x06\x00\x00\x00\xb7\x00\x00\x00\x00\x00" "\x00\x00\x95\x00\x00\x00\x00\x00\x00\x00\x3f\xaf\x4f\x2a\xa3\xd9\xb1\x8e" "\xd8\x12\xa2\xe2\xc4\x9e\x80\x20\xa6\xf4\xe0\xe4\xf6\x98\x39\x3a\xa0\xf3" "\x88\x1f\x9c\x24\xaa\x56\xf1\x51\x99\xfa\xd0\x09\x3c\x59\xd6\x6b\x5e\xce" "\x9f\x36\xc7\x0d\x0f\x13\x90\x5e\xa2\x3c\x22\x62\x4c\x9f\x87\xf9\x79\x3f" "\x50\xbb\x54\x60\x00\x67\x7b\x0c\x50\x77\xda\x80\xfb\x98\x2c\x1e\x94\x00" "\xe6\x93\x14\x6c\xea\x48\x4a\x41\x5b\x76\x96\x61\x18\xb6\x4f\x75\x1a\x0f" "\x24\x1b\x07\x2e\x90\x08\x00\x08\x00\x2d\x75\x59\x3a\x28\x6c\xec\xc9\x3e" "\x64\xc2\x27\xc9\x5a\xa0\xb7\x84\x62\x57\x04\xf0\x7a\x72\xc2\x34\x66\x4c" "\x0a\xf9\x36\x0a\x1f\x7a\x5e\x6b\x60\x71\x30\xc8\x9f\x18\xc0\xc1\x08\x9d" "\x8b\x85\x32\x89\xd0\x1a\xa2\x7a\xe8\xb0\x9e\x00\xe7\x9a\xb2\x0b\x0b\x8e" "\x11\x48\xf4\x9f\xaf\x2a\xd0\x00\x00\x00\x00\x00\x00\x00\x6f\xa0\x3c\x64" "\x68\x97\x20\x89\xb3\x02\xd7\xbf\x60\x23\xcd\xce\xdb\x5e\x01\x25\xeb\xbc" "\x08\xde\xe5\x10\xcb\x23\x64\x14\x92\x15\x10\x83\x33\x71\x9a\xcd\x97\xcf" "\xa1\x07\xd4\x02\x24\xed\xc5\x46\x7a\x93\x2b\x77\x67\x4e\x80\x2a\x0d\x42" "\xbc\x60\x99\xad\x23\x8a\xf7\x70\xb5\xed\x89\x25\x16\x17\x29\x29\x87\x00" "\x00\x00\x80\x00\x6e\xf6\xc1\xff\x09\x00\x00\x00\x00\x00\x00\x10\xc6\x3a" "\x94\x9e\x8b\x79\x55\x39\x4f\xfa\x82\xb8\xe9\x42\xc8\x91\x12\xf4\xab\x87" "\xb1\xbf\xed\xa7\xbe\x58\x66\x02\xd9\x85\x43\x0c\xea\x01\x62\xab\x3f\xcf" "\x45\x91\xc9\x26\xab\xfb\x07\x67\x19\x23\x7c\x8d\x0e\x60\xb0\xee\xb1\x94" "\x8b\xf4\x2b\xc7\xfc\x2c\xb2\x74\x84\x9c\x95\x24\x15\x4f\xa2\x44\x92\xa6" "\x60\x58\x3e\xec\xdb\xf5\xbc\xd3\xde\x3a\x83\x20\x9d\xa1\x7a\x0f\xaf\x60" "\xfd\x6a\xd9\xb9\x7a\xa5\xfa\x68\x48\x03\x66\xc9\xc6\xfd\x6f\xa5\x04\x3a" "\xa3\x92\x6b\x81\xe3\xb5\x9c\x95\xc2\x5a\x57\x3d\xc2\xed\xca\xea\x2b\x1a" "\x52\x49\x6d\xfc\xaf\x99\x43\x14\x12\xfd\x13\x4a\x99\x63\x82\xa1\xa0\x4d" "\x5b\xb9\x24\xcf\xe5\xf3\x18\x54\x18\xd6\x05\xff\xff\x9c\x4d\x2e\xc7\xc3" "\x2f\x20\x95\xe6\x3c\x80\xaf\xf9\xfa\x74\x0b\x5b\x76\x32\xf3\x20\x30\x91" "\x6f\x89\xc6\xda\xd7\x60\x3f\x2b\xa2\xa7\x90\xd6\x2d\x6f\xae\xc2\xfe\xd4" "\x4d\xa4\x92\x8b\x30\x14\x2b\xa1\x1d\xe6\xc5\xd5\x0b\x83\xba\xe6\x13\x40" "\x22\x16\xb5\x05\x4d\x1e\x7c\x13\xb1\x35\x5d\x6f\x4a\x82\x45\xff\xa4\x99" "\x7d\xa9\xc7\x7a\xf4\xc0\xeb\x97\xfc\xa5\x85\xec\x6b\xf5\x83\x51\xd5\x64" "\xbe\xb6\xd9\x52\xaa\xb9\xc7\x07\x64\xb0\xa8\xa7\x58\x3c\x90\xb3\x43\x3b" "\x80\x9b\x5b\x9f\xbd\x48\xbc\x87\x34\x95\xcb\xff\x8a\x32\x6e\xea\x31\xae" "\x4e\x0f\x75\x05\xeb\xf6\xc9\xd1\x33\x30\xca\x00\x6b\xce\x1a\x84\x52\x1f" "\x14\x51\x8c\x9b\x47\x6f\xcc\xbd\x6c\x71\x20\x16\x21\x98\x48\x62\x4b\x87" "\xce\xc2\xdb\xe9\x82\x23\xa0\xeb\x4f\xa3\x9f\x6b\x5c\x02\xe6\xd6\xd9\x07" "\x56\xff\x57\x90\x2a\x8f\x57\x00\x00\x00\x00\x97\x00\xcf\x0b\x4b\x8b\xc2" "\x29\x41\x33\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x10\x00\x8b\xc0\xd9\x55\x97\x11\xe6\xe8" "\x86\x1c\x46\x49\x5b\xa5\x85\xa4\xb2\xd0\x2e\xdc\x3e\x28\xdd\x27\x1c\x89" "\x62\x49\xed\x39\x57\xf8\x13\x56\x7f\x7a\x95\x43\x5a\xc1\x5f\xc0\x28\x8d" "\x9b\x2a\x16\x9c\xdc\xac\xc4\x13\xb4\x8d\xaf\xb7\xa2\xc8\xcb\x48\x2b\xac" "\x0a\xc5\x59\xea\xf3\x90\x27\xce\xb3\x79\xa9\x02\xd9\xba\x96\xff\xff\xff" "\x7f\x00\x00\x10\x00\x00\x00\x00\x00\x00\x7d\x5a\xd8\x97\xef\x3b\x7c\xda" "\x42\x01\x3d\x53\x04\x6d\xa2\x1b\x40\x21\x6e\x14\xba\x2d\x6a\xd5\x65\x6b" "\xff\xf1\x7a\xdd\xae\xda\xb2\x5b\x30\x00\x2a\xbb\xba\x7f\xa7\x25\xf3\x84" "\x00\xbe\x7c\x1f\x00\x1b\x2c\xd3\x17\x90\x2f\x19\xe3\x85\xbe\x9e\x48\xdc" "\xcf\xf7\xa1\xef\x32\x82\x83\x06\x89\xda\x6b\x53\xb2\x63\x33\x98\x63\x29" "\x77\x71\x42\x9d\x12\x00\x00\x00\x33\x41\xbf\x4a\xba\xca\xc9\x45\x00\xfc" "\xa0\x49\x3c\xf2\x9b\x33\xdc\xc9\xff\xff\xff\xff\xff\xff\xff\xd3\x9f\x6c" "\xe0\xc6\xff\x01\x58\x96\x46\xef\xd1\xcf\x87\x0c\xd7\xbb\x23\x66\xfd\xf8" "\x70\xce\x5d\xfd\x34\x67\xde\xcb\x05\xcf\xd9\xfc\xb3\x2c\x8e\xd1\xdb\xd9" "\xd1\x0a\x64\xc1\x08\x3d\x5e\x71\xb5\x56\x5b\x17\x68\xee\x58\x96\x9c\x41" "\x59\x52\x29\xdf\x17\xbc\xad\x70\xfb\x40\x21\x42\x8c\xe9\x70\x27\x5d\x13" "\xb7\x81\x00\x78\x8f\x11\xf7\x61\x03\x8b\x75\xd4\xfe\x32\xb5\x61\xd4\x6e" "\xa3\xab\xe0\xfa\x4d\x30\xdc\x94\xef\x24\x18\x75\xf3\xb4\xce\x02\x32\xfc" "\xea\x69\xc2\x71\xd7\xfa\x29\x82\x2a\xea\x68\xa6\x60\xe7\x17\xa0\x4b\xec" "\xff\x0f\x71\x91\x97\x72\x4f\x4f\xce\x12\x93\xb6\x2d\x7e\x8c\x71\x23\xd8" "\xec\x57\x1b\xe5\x4c\x72\xd9\x78\xcf\x90\x6d\xf0\x04\x2e\x36\xac\xd3\x7d" "\x7f\x9e\x11\x9f\x2c\x06\xf8\x15\x31\x2e\x0c\xfe\x22\x2a\x06\xf5\x6d\xd0" "\x00\xc0\x74\xeb\x8a\x32\x2f\xb0\xbf\x47\xc0\xa8\xd1\x54\xb4\x05\xc3\x7f" "\xea\xf3\xdd\x95\xf6\xef\x2a\xcd\x1f\xe5\x82\x78\x61\x05\xc7\xdf\x8b\xe5" "\x87\x70\x50\xc9\x13\x01\xfb\x99\x73\x16\xdb\xf1\x78\x66\xfb\x84\xd4\x17" "\x37\x31\xef\xe8\x95\xff\x2e\x1c\x55\xef\x08\x23\x5a\x01\x26\xe0\x12\x54" "\xc4\x40\x60\x92\x6e\x90\x10\x9b\x59\x85\x02\xd3\xe9\x59\xef\xc7\x1f\x66" "\x5c\x4d\x75\xcf\x24\x58\xe3\x54\x2c\x90\x62\xec\xe8\x4c\x99\xa8\x61\x88" "\x7a\x20\x63\x9b\x41\xc8\xc1\x2e\xe8\x6c\x50\x80\x40\x42\xb3\xea\xc1\xf8" "\x79\xb1\x36\x34\x5c\xf6\x7c\xa3\xfb\x5a\xac\x51\x8a\x75\xf9\xe7\xd7\x10" "\x1d\x5e\x18\x6c\x48\x9b\x3a\x06\xfb\x99\xe0\xaa\x7f\x23\xa0\x54\xde\x2f" "\x4d\x92\xd6\xbd\x72\xee\x2c\x9f\xdc\x74\xaa\xaf\x1e\x3e\x48\x3b\x4a\xd0" "\x55\x73\xaf\x40\x32\x69\x93\x94\x7d\x9a\x63\x1b\xcb\xf3\x58\x37\x84\xac" "\xbd\xa2\x16\x55\x0d\x7a\xd3\x33\x54\x57\x94\xf3\x73\x31\x76\x6e\x47\x23" "\x91\xe3\x58\xc3\xb3\x77\x32\x7a\xc9\xec\xc3\x4f\x24\xc9\xae\x15\x3e\xc6" "\x0a\xc0\x69\x4d\xc5\x5b\xff\x9f\x5f\x4d\xf9\x04\x00\x00\x00\x00\x00\x00" 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"\x40\x00\x00\x00\x00\x00\xbf\xb0\xbb\xa7\x93\x44\x64\x3b\x1d\x8d\xaa\x9f" "\x38\xe4\xb6\x2c\x1e\x2a\xf6\x8c\x6f\x50\x00\x00\x01\x00\x00\x00\x00\x00" "\x94\x4e\x45\x05\xda\x48\x5a\x3a\x41\x54\x38\x7a\x0a\x88\x37\x0d\x9e\xd9" "\x46\x7b\x09\xc5\x88\x8a\x06\x43\x1d\xf3\xf6\x8a\xbf\x0b\x36\x6c\x4d\x5f" "\x8b\xea\x7b\x29\xc2\x57\xed\x75\x6d\xff\x7a\x21\xc6\xb6\x61\xcb\xdd\x43" "\xde\x65\xaf\xd7\xf6\x61\xd5\xc8\x4f\x91\x5c\x90\xe3\xd6\xea\x01\x2b\x68" "\xb7\x87\xeb\x01\xd8\x32\x00\x00\x00\x00\x00\x00\x00\x60\x17\x6d\xac\xba" "\x0e\xc5\x03\xa3\x7f\xae\x6b\x47\x2e\xc3\x69\xc7\x9e\xe6\xa4\x20\xc0\xfd" "\x8d\x8d\x82\xfe\x13\x6d\x5a\xf6\xc3\x0b\xfe\xb0\xa7\x27\x5b\xab\xfd\xb9" "\x6a\x12\x7a\xa9\x38\x6e\x06\x71\xc6\x45\x42\x45\xa1\x8c\x1c\x8c\x49\x55" "\x2c\xff\x5d\x27\xb5\x47\xcd\xc3\x4c\x08\x58\xc7\x7a\x47\xa9\xff\x86\xee" "\x9f\xbd\x9c\xed\xa4\x28\x71\x6a\x42\x18\x82\x11\x76\xd8\x06\x79\x97\x52" "\x72\x30\xfa\x67\xd2\x69\x50\xd3\xe4\xf2\x75\x0f\xa7\xc8\x72\x87\x4a\xd3" "\xa2\xd1\x1f\x9f\x6e\xb0\x8e\x6d\x7b\x6f\xa2\x57\xb0\x4d\x8c\xe3\x63\x60" "\xf5\x24\xe3\xdf\xd2\x21\x16\x41\xf3\xd2\x63\x7d\x86\xb8\x06\x81\xec\xa5" "\x0c\xe0\xee\xca\xfd\xd2\x2d\x41\xfa\x51\x5c\x15\x59\x1e\x70\xde\xd4\xb7" "\x0e\xfa\xc3\xcb\x42\xfb\x35\x2d\x82\xe8\xf7\x57\x3e\x8e\xd8\x24\x8d\xa3" "\x56\xfa\x91\xa2\x52\x97\x6d\x3a\x4d\x8c\x18\x43\xa8\x08\x00\x00\x00\x00" "\x00\x00\x00\x05\x62\xa3\xea\x93\x11\x70\x76\xdd\x49\x40\xb7\xdf\x50\xd7" "\x82\x89\xfe\x66\x19\x75\x25\xf6\x09\x5f\x86\x62\xd2\x32\x97\x0b\xef\x61" "\xb0\x3f\xa8\x30\x27\x96\x3a\x1a\x2e\x07\xcf\xee\x30\xc0\xd0\xb4\xc5\x87" "\x7f\x93\xb3\x63\x7c\xa2\x1e\xab\x5a\xfc\xf5\xd4\x63\x8d\xfe\x8f\x92\x02" "\xaa\xad\x51\xc9\x79\x04\x9d\xd7\x6d\x65\x36\x8c\xbd\x41\x87\xd9\xf7\x42" "\x57\xc7\xc4\xa2\x3a\xc4\xa3\x4e\xec\x5a\xa1\x7e\x78\xc5\x16\x72\x16\xf5" "\xe7\x21\x38\xd2\x0f\x83\x25\xdd\x5f\x8f\x96\xc3\x21\x89\xc9\x04\xea\xef" "\x58\x09\x87\xf1\xce\x60\x1a\x7c\xdc\x35\x46\x1d\xb9\x98\x1a\xc4\x2f\x9e" "\x24\xb0\x69\x9b\xbe\x4e\x3d\x98\x6e\x38\x95\x2b\x0b\x79\x38\xee\xfd\x9e" "\x7a\x29\x2b\xbb\x66\x36\x7a\xd7\x70\x45\xfd\xc1\x88\x55\xc8\x1c\x03\x1d" "\xed\xd1\x85\xc7\x23\x23\x83\x73\xfc\x69\x8d\x67\x67\x91\xd0\x4f\x1f\xf5" "\xf0\x82\x5a\x66\x19\xe8\x44\x89\x2f\x31\xed\x19\x02\x33\xd5\x8e\xce\xe9" "\x49\xe3\x10\xbf\x2b\x1a\x51\xb8\xa3\x3a\xe6\x5a\x06\xd2\xb6\xad\x38\x6b" "\xf8\xdc\x49\xdd\x32\x8b\xcd\x75\xd1\x84\x3a\x13\xd6\x85\x60\x17\x5a\x18" "\xaf\x7e\xfc\x3c\x0f\x20\xe3\x2f\x84\xf6\xaa\xaf\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x13\xa6\xc6\x6b\xce\x74\xa8\xfb\x90\x92\x02\x3d\xf6" "\x95\xda\x27\x14\xa7\x93\x3d\x69\x9d\x42\xde\x2b\xc4\xa8\x5e\x0a\x0e\x22" "\x22\x82\x90\xa7\xa7\x55\x3a\xb9\x3a\x16\xe4\x24\x53\xed\x86\x86\x9a\x02" "\xdf\x2f\x47\xd4\x08\x8f\xac\x17\x72\xd3\xcd\x95\x5c\x81\xcb\xf9\x1c\x2c" "\xa7\x94\x29\x42\xf6\x17\x23\xb5\x58\x07\x9b\x82\x54\x78\x44\xf9\x2d\xf2" "\x49\x9c\x4b\x2c\x2e\xf2\x53\x9e\x5d\xaa\x8d\x87\x27\xba\xaa\x6b\x57", 3239); *(uint64_t*)0x20000b50 = 0x20000100; memcpy((void*)0x20000100, "GPL\000", 4); *(uint32_t*)0x20000b58 = 0; *(uint32_t*)0x20000b5c = 0; *(uint64_t*)0x20000b60 = 0; *(uint32_t*)0x20000b68 = 0; *(uint32_t*)0x20000b6c = 0; memset((void*)0x20000b70, 0, 16); *(uint32_t*)0x20000b80 = 0; *(uint32_t*)0x20000b84 = 0; *(uint32_t*)0x20000b88 = -1; *(uint32_t*)0x20000b8c = 8; *(uint64_t*)0x20000b90 = 0x20000000; *(uint32_t*)0x20000000 = 0; *(uint32_t*)0x20000004 = 0; *(uint32_t*)0x20000b98 = 0; *(uint32_t*)0x20000b9c = 0x10; *(uint64_t*)0x20000ba0 = 0x20000000; *(uint32_t*)0x20000000 = 0; *(uint32_t*)0x20000004 = 0; *(uint32_t*)0x20000008 = 0; *(uint32_t*)0x2000000c = 0; *(uint32_t*)0x20000ba8 = 0xffffff7e; *(uint32_t*)0x20000bac = 0; *(uint32_t*)0x20000bb0 = -1; *(uint32_t*)0x20000bb4 = 0; *(uint64_t*)0x20000bb8 = 0; *(uint64_t*)0x20000bc0 = 0; *(uint32_t*)0x20000bc8 = 0x10; *(uint32_t*)0x20000bcc = 0; res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000b40ul, /*size=*/0x48ul); if (res != -1) r[2] = res; *(uint64_t*)0x20000400 = 0x200003c0; memcpy((void*)0x200003c0, "mm_page_alloc\000", 14); *(uint32_t*)0x20000408 = r[2]; syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x20000400ul, /*size=*/0x10ul); } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-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=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); for (procid = 0; procid < 5; procid++) { if (fork() == 0) { loop(); } } sleep(1000000); return 0; }