// https://syzkaller.appspot.com/bug?id=c43012e5e705a5ca92a89e2b003947982569db50 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #define BITMASK_LEN(type, bf_len) (type)((1ull << (bf_len)) - 1) #define BITMASK_LEN_OFF(type, bf_off, bf_len) \ (type)(BITMASK_LEN(type, (bf_len)) << (bf_off)) #define STORE_BY_BITMASK(type, addr, val, bf_off, bf_len) \ if ((bf_off) == 0 && (bf_len) == 0) { \ *(type*)(addr) = (type)(val); \ } else { \ type new_val = *(type*)(addr); \ new_val &= ~BITMASK_LEN_OFF(type, (bf_off), (bf_len)); \ new_val |= ((type)(val)&BITMASK_LEN(type, (bf_len))) << (bf_off); \ *(type*)(addr) = new_val; \ } #ifndef __NR_bpf #define __NR_bpf 321 #endif uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; int main() { syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); long res = 0; *(uint32_t*)0x2025c000 = 2; *(uint32_t*)0x2025c004 = 0x78; *(uint8_t*)0x2025c008 = 0xe3; *(uint8_t*)0x2025c009 = 0; *(uint8_t*)0x2025c00a = 0; *(uint8_t*)0x2025c00b = 0; *(uint32_t*)0x2025c00c = 0; *(uint64_t*)0x2025c010 = 0; *(uint64_t*)0x2025c018 = 0; *(uint64_t*)0x2025c020 = 0; STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 0, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 1, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 2, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 3, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 4, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 5, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 6, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 7, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 8, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 9, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 10, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 11, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 12, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 13, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 14, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 15, 2); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 17, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 18, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 19, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 20, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 21, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 22, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 23, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 24, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 25, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 26, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 27, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 28, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 29, 35); *(uint32_t*)0x2025c030 = 0; *(uint32_t*)0x2025c034 = 0; *(uint64_t*)0x2025c038 = 0x20389000; *(uint64_t*)0x2025c040 = 0; *(uint64_t*)0x2025c048 = 0; *(uint64_t*)0x2025c050 = 0; *(uint32_t*)0x2025c058 = 0; *(uint32_t*)0x2025c05c = 0; *(uint64_t*)0x2025c060 = 0; *(uint32_t*)0x2025c068 = 0; *(uint16_t*)0x2025c06c = 0; *(uint16_t*)0x2025c06e = 0; res = syscall(__NR_perf_event_open, 0x2025c000, 0, 0, -1, 0); if (res != -1) r[0] = res; *(uint32_t*)0x2025c000 = 2; *(uint32_t*)0x2025c004 = 0x70; *(uint8_t*)0x2025c008 = 0xe3; *(uint8_t*)0x2025c009 = 0; *(uint8_t*)0x2025c00a = 0; *(uint8_t*)0x2025c00b = 0; *(uint32_t*)0x2025c00c = 0; *(uint64_t*)0x2025c010 = 0; *(uint64_t*)0x2025c018 = 0; *(uint64_t*)0x2025c020 = 0; STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 0, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 1, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 2, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 3, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 4, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 5, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 6, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 7, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 8, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 9, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 10, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 11, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 12, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 13, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 14, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 15, 2); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 17, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 18, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 19, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 20, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 21, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 22, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 23, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 24, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 25, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 26, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 27, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 28, 1); STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 29, 35); *(uint32_t*)0x2025c030 = 0; *(uint32_t*)0x2025c034 = 0; *(uint64_t*)0x2025c038 = 0x20389000; *(uint64_t*)0x2025c040 = 0; *(uint64_t*)0x2025c048 = 0; *(uint64_t*)0x2025c050 = 0; *(uint32_t*)0x2025c058 = 0; *(uint32_t*)0x2025c05c = 0; *(uint64_t*)0x2025c060 = 0; *(uint32_t*)0x2025c068 = 0; *(uint16_t*)0x2025c06c = 0; *(uint16_t*)0x2025c06e = 0; res = syscall(__NR_perf_event_open, 0x2025c000, 0, 0, -1, 0); if (res != -1) r[1] = res; *(uint32_t*)0x20000000 = 5; *(uint32_t*)0x20000004 = 3; *(uint64_t*)0x20000008 = 0x20346fc8; *(uint8_t*)0x20346fc8 = 0x18; STORE_BY_BITMASK(uint8_t, 0x20346fc9, 0, 0, 4); STORE_BY_BITMASK(uint8_t, 0x20346fc9, 0, 4, 4); *(uint16_t*)0x20346fca = 0; *(uint32_t*)0x20346fcc = 0; *(uint8_t*)0x20346fd0 = 0; *(uint8_t*)0x20346fd1 = 0; *(uint16_t*)0x20346fd2 = 0; *(uint32_t*)0x20346fd4 = 0; *(uint8_t*)0x20346fd8 = 0x95; *(uint8_t*)0x20346fd9 = 0; *(uint16_t*)0x20346fda = 0; *(uint32_t*)0x20346fdc = 0; *(uint64_t*)0x20000010 = 0x200001c0; memcpy((void*)0x200001c0, "GPL", 4); *(uint32_t*)0x20000018 = 0xfffffffc; *(uint32_t*)0x2000001c = 0xfb; *(uint64_t*)0x20000020 = 0x20000080; *(uint32_t*)0x20000028 = 0; *(uint32_t*)0x2000002c = 0; *(uint8_t*)0x20000030 = 0; *(uint8_t*)0x20000031 = 0; *(uint8_t*)0x20000032 = 0; *(uint8_t*)0x20000033 = 0; *(uint8_t*)0x20000034 = 0; *(uint8_t*)0x20000035 = 0; *(uint8_t*)0x20000036 = 0; *(uint8_t*)0x20000037 = 0; *(uint8_t*)0x20000038 = 0; *(uint8_t*)0x20000039 = 0; *(uint8_t*)0x2000003a = 0; *(uint8_t*)0x2000003b = 0; *(uint8_t*)0x2000003c = 0; *(uint8_t*)0x2000003d = 0; *(uint8_t*)0x2000003e = 0; *(uint8_t*)0x2000003f = 0; *(uint32_t*)0x20000040 = 0; *(uint32_t*)0x20000044 = 0; res = syscall(__NR_bpf, 5, 0x20000000, 0x48); if (res != -1) r[2] = res; syscall(__NR_ioctl, r[1], 0x40042408, r[2]); *(uint32_t*)0x20000180 = 2; *(uint32_t*)0x20000184 = 0; *(uint32_t*)0x20000188 = 0; *(uint32_t*)0x2000018c = 0; syscall(__NR_ioctl, r[0], 0xc008240a, 0x20000180); return 0; }