On Thu, 15 Jan 2026 19:50:47 GMT, Phil Race <[email protected]> wrote:
> Some of the medialib native functions implementing Convolve read data from > arrays when it is not needed or used instead of reading just what is needed > and used. > This is detected as a read out of bounds. It is limited and hasn't been seen > to result in any crashes without ASAN, and the OOB values that are read are > never used so there's a very limited problem. > The changes here make the mlib_ImageConv_*nw.c files match what happens in > the mlib_ImageConv_*ext.c files which read just the data they need. > The changes are fairly mechanical but there could be copy/paste errors for a > reviewer to find. > > Not easy to provide a test case, building with --enable-asan is needed and > for me it works only on macOS. > I did that and ran all our existing automated tests on our CI systems. This pull request has now been integrated. Changeset: 779970fb Author: Phil Race <[email protected]> URL: https://git.openjdk.org/jdk/commit/779970fb6fdae8b12ca29b4887d2812c50835653 Stats: 461 lines in 7 files changed: 376 ins; 46 del; 39 mod 8373626: [asan] read past end of buffer in sun.awt.image.ImagingLib.convolveBI Reviewed-by: jdv ------------- PR: https://git.openjdk.org/jdk/pull/29257
