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| author | Cosmin Truta <ctruta@gmail.com> | 2022-11-20 00:56:35 +0200 |
|---|---|---|
| committer | Cosmin Truta <ctruta@gmail.com> | 2022-11-20 00:56:35 +0200 |
| commit | 33de006e127ffc330f12396bf6732682f804d115 (patch) | |
| tree | 8aab0e0c6ec2f393c7316476c40920c4006eebe1 /png.c | |
| parent | 9b5488054bc9fc750178e9b90ffea25e71d3348b (diff) | |
| download | libpng-33de006e127ffc330f12396bf6732682f804d115.tar.gz | |
Turn large PNG chunks into benign errors
Import Chromium commit
https://chromium.googlesource.com/chromium/src/+/e87a02987101e2dbe319a4aba6b52470f7624b4a
Add the author to the list of libpng contributing authors.
Portions from the original commit message follow:
***
A recent change to libpng [1] (included in Chromium with the recent
libpng update [2]) turns chunks that are bigger than
PNG_USER_CHUNK_MALLOC_MAX into failures. Although this matches the
intent of PNG_USER_CHUNK_MALLOC_MAX, it also causes images which used to
be viewable in Chromium to fail. Changing to a benign error allows us to
display these images once again. Though it means we do allow libpng to
allocate more than PNG_USER_CHUNK_MALLOC_MAX, it matches the behavior
prior to [2] (when we were using 1.6.22), and it does not regress
crbug.com/117369
[1] https://github.com/glennrp/libpng/commit/347538efbdc21b8df684ebd92d37400b3ce85d55
[2] https://chromium.googlesource.com/chromium/src/+/f82653a473f8de5fc86d0f2ecc75f6237e61946b
***
Bug: https://bugs.chromium.org/p/chromium/issues/detail?id=827754
Co-authored-by: Leon Scroggins III <scroggo@google.com>
Signed-off-by: Cosmin Truta <ctruta@gmail.com>
Diffstat (limited to 'png.c')
0 files changed, 0 insertions, 0 deletions