udf: Check path length when reading symlink
Symlink reading code does not check whether the resulting path fits into
the page provided by the generic code. This isn't as easy as just
checking the symlink size because of various encoding conversions we
perform on path. So we have to check whether there is still enough space
in the buffer on the fly.
FPIIM-1254
FPIIM-1248
Change-Id: I4f26f8f1ddb4917730da4a872f6704a9fb2d6ca6
CC: stable@vger.kernel.org
Reported-by: Carl Henrik Lunde <chlunde@ping.uio.no>
Signed-off-by: Jan Kara <jack@suse.cz>
5 files changed