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64 lines
1.7 KiB
64 lines
1.7 KiB
/**
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define _GNU_SOURCE
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <dlfcn.h>
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#include <string.h>
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#include <sys/mman.h>
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typedef struct {
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uint32_t width;
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uint32_t height;
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uint32_t format;
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const unsigned char* pixels;
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} gdx2d_pixmap;
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gdx2d_pixmap *(*gdx2d_load)(const unsigned char *buffer, uint32_t len);
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void (*gdx2d_free)(const gdx2d_pixmap* pixmap);
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int main() {
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void *libgdx = dlopen("libgdx.so", RTLD_LAZY);
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if(libgdx == NULL) {
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return -1;
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}
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gdx2d_load = dlsym(libgdx, "gdx2d_load");
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gdx2d_free = dlsym(libgdx, "gdx2d_free");
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if(gdx2d_load == NULL || gdx2d_free == NULL){
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dlclose(libgdx);
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return -2;
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}
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char *fname = "/data/local/tmp/CVE-2017-0477.gif";
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int fd = open(fname, O_RDONLY);
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struct stat st;
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fstat(fd, &st);
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void *ptr = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
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gdx2d_pixmap *pixmap = gdx2d_load((unsigned char *) ptr, st.st_size);
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if (pixmap) {
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gdx2d_free(pixmap);
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}
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dlclose(libgdx);
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return 0;
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}
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