Various fixes to handling of chunk buffers

[fortnern]

Verify uncompressed chunks are the right size after being uncompressed (reverse filtered)
Verify that the buffer returned from the filter callback is large enough to hold the returned data size
Fix bug in deflate filter that caused it to report the wrong buffer size
Fix bug in chunk copy code that could cause a background buffer overflow
Other general cleanup

The verification of the size of chunks after decompression causes a failure in NetCDF. I suspect this is an issue in that NetCDF test.

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Important

Fixes and enhancements to chunk buffer handling, including size verification and buffer overflow prevention in H5Dchunk.c, H5Z.c, and H5Zdeflate.c.

• Buffer Size Verification:
  • In H5Dchunk.c, verify uncompressed chunk size in H5D__chunk_lock() and H5D__chunk_copy_cb().
  • In H5Z.c, ensure buffer size is sufficient after filter callback in H5Z_pipeline().
• Bug Fixes:
  • Fix buffer overflow in H5D__chunk_copy_cb() by ensuring background buffer size is adequate.
  • Correct buffer size reporting in H5Z__filter_deflate() in H5Zdeflate.c.
• Miscellaneous:
  • Add bkg_size and src_chunk_size to H5D_chunk_it_ud3_t in H5Dchunk.c.
  • Minor cleanup and assertions added in H5Dchunk.c and H5Z.c.

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[fortnern]

Not scheduled for 2.1.0. Needs a test and doc updates to clarify the expected behavior of filters

[sonarqubecloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud