A fast, compressed, and persistent binary data store library for C.
This is a maintenance release extending the security hardening from 3.1.3
to the ndcell and ndmean plugin filters. Malformed or
attacker-crafted b2nd metalayers could previously trigger heap buffer
overflows in these filters by exploiting 32-bit block-size arithmetic.
Both plugins now validate block geometry in 64-bit to prevent overflows.
Additionally, this release fixes a thread-pool memory leak that was especially visible under WebAssembly/Pyodide, and a potential SEGV on demand when the parallel backend fails to initialize. RISC-V targets are now also properly recognized in the CMake build system.
Thanks to @metsw24-max, @saddamr3e and @carlosqwqqwq for their contributions to this release!
For more info, see the release notes in:
https://github.com/Blosc/c-blosc2/blob/main/RELEASE_NOTES.md
Blosc2 is a high-performance data container optimized for binary data. Blosc2 is the next generation of Blosc, an award-winning library that has been around for more than a decade.
Blosc2 expands the capabilities of Blosc by providing a higher level container that is able to store many chunks on it (hence the super-block name). It supports storing data on both memory and disk using the same API. Also, it adds more compressors and filters.
The github repository is over here:
https://github.com/Blosc/c-blosc2
Blosc is distributed using the BSD license, see LICENSE.txt for details.
There is an official Blosc mailing list at:
blosc@googlegroups.com https://groups.google.com/g/blosc
Enjoy Data!
- The Blosc Development Team