Douglas Bagnall 6f77b376d4 compression/huffman: avoid semi-defined behaviour in decompress ... We had output[output_pos - distance]; where output_pos and distance are size_t and distance can be greater than output_pos (because it refers to a place in the previous block). The underflow is defined, leading to a big number, and when sizeof(size_t) == sizeof(*uint8_t) the subsequent overflow works as expected. But if size_t is smaller than a pointer, bad things will happen. This was found by OSSFuzz with 'UBSAN_OPTIONS=print_stacktrace=1:silence_unsigned_overflow=1'. Credit to OSSFuzz. Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz> Reviewed-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>		2022-12-19 22:32:35 +00:00
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tests	lib/compression: Include missing stat header file	2022-12-06 11:39:16 +00:00
lzxpress_huffman.c	compression/huffman: avoid semi-defined behaviour in decompress	2022-12-19 22:32:35 +00:00
lzxpress_huffman.h	lib/compression: LZ77 + Huffman compression	2022-12-01 22:56:39 +00:00
lzxpress.c	lib/compression/lzxpress: fix our slow compression	2022-12-02 00:00:04 +00:00
lzxpress.h
wscript_build	lib/comression: convert test_lzxpress_plain to cmocka	2022-12-01 22:56:39 +00:00