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[BUG] a reachable assert in stbi__create_png_image_raw #163

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kdsjZh opened this issue Mar 19, 2022 · 0 comments

kdsjZh commented Mar 19, 2022 •

edited

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Describe the bug
There is a reachable assert bug found in stbi__create_png_image_raw, can be triggered via img2sixel+ ASan

To Reproduce
compile the program with CFLAGS="-fsanitize=address" CC=clang
then run ./img2sixel $POC
output:

img2sixel: ./stb_image.h:4374: int stbi__create_png_image_raw(stbi__png *, stbi_uc *, stbi__uint32, int, stbi__uint32, stbi__uint32, int, int): Assertion `img_width_bytes <= x' failed.
Aborted

system
ubuntu 16.04,
clang 12.0.1
libsixel latest commit 6a5be8b

Credit
Han Zheng
NCNIPC of China
Hexhive

POC
poc.zip

The text was updated successfully, but these errors were encountered:

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