cpukit/libfs/jffs2: Prevent memory corruption due to corrupted data
Summary
cpukit/libfs/jffs2: Prevent memory corruption due to corrupted data
The rtime decompression routine does not fully check bounds during the entirety of the decompression pass and can corrupt memory outside the decompression buffer if the compressed data is corrupted. This adds the required check to prevent this failure mode.
Updates #5072