// https://syzkaller.appspot.com/bug?id=d5c70144806c3d994e5cf55b1feb9903d7f30ff6 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #ifndef __NR_fsconfig #define __NR_fsconfig 431 #endif #ifndef __NR_fsmount #define __NR_fsmount 432 #endif #ifndef __NR_fsopen #define __NR_fsopen 430 #endif uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff}; 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); intptr_t res = 0; memcpy((void*)0x200003c0, "cgroup2\000", 8); res = syscall(__NR_fsopen, 0x200003c0ul, 0ul); if (res != -1) r[0] = res; syscall(__NR_fsconfig, r[0], 6ul, 0ul, 0ul, 0ul); res = syscall(__NR_fsmount, r[0], 0ul, 0ul); if (res != -1) r[1] = res; memcpy((void*)0x20000000, "cpu.pressure\000", 13); res = syscall(__NR_openat, r[1], 0x20000000ul, 2ul, 0ul); if (res != -1) r[2] = res; *(uint32_t*)0x20000140 = 8; *(uint32_t*)0x20000144 = 1; *(uint32_t*)0x20000148 = 1; *(uint32_t*)0x2000014c = 0; syscall(__NR_open_by_handle_at, r[2], 0x20000140ul, 0ul); return 0; }