Here is how to trigger it:
echo blob 100 > .git/objects/00/
ae4e8d3208e09f2cf7a38202a126f728cadb49
Then run fsck-cache. It will try to unpack after the header to calculate
the hash, inflate returns total_out == 0 and memcpy() dies.
The patch below seems to work with ZLIB 1.1 and 1.2.
Signed-off-by: Andreas Gal <gal@uci.edu>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>