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[libpng16] Relocate png_read_update_info() wrt png_start_image() in fuzzer.

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This commit is contained in:
Glenn Randers-Pehrson 2017-10-12 20:10:40 -05:00
parent fefe0affc1
commit 83f27f018c
1 changed files with 3 additions and 2 deletions
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5
contrib/oss-fuzz/libpng_read_fuzzer.cc
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@ -5,7 +5,7 @@
// Use of this source code is governed by a BSD-style license that may
// be found in the LICENSE file https://cs.chromium.org/chromium/src/LICENSE
// Last changed in libpng 1.6.35 [October 12, 2017]
// Last changed in libpng 1.6.35 [October 13, 2017]
// The modifications in 2017 by Glenn Randers-Pehrson include
// 1. addition of a PNG_CLEANUP macro,
@ -168,10 +168,11 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
png_set_add_alpha(png_handler.png_ptr, 0xffff, PNG_FILLER_AFTER);
int passes = png_set_interlace_handling(png_handler.png_ptr);
png_start_read_image(png_handler.png_ptr);
png_read_update_info(png_handler.png_ptr, png_handler.info_ptr);
png_start_read_image(png_handler.png_ptr);
png_handler.row_ptr = png_malloc(
png_handler.png_ptr, png_get_rowbytes(png_handler.png_ptr,
png_handler.info_ptr));