Phillip Lougher 2910c59fd0 squashfs: fix length field overlap check in metadata reading ... This is a regression introduced by the "migrate from ll_rw_block usage to BIO" patch. Squashfs packs structures on byte boundaries, and due to that the length field (of the metadata block) may not be fully in the current block. The new code rewrote and introduced a faulty check for that edge case. Fixes: 93e72b3c61 ("squashfs: migrate from ll_rw_block usage to BIO") Reported-by: Bernd Amend <bernd.amend@gmail.com> Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Adrien Schildknecht <adrien+dev@schischi.me> Cc: Guenter Roeck <groeck@chromium.org> Cc: Daniel Rosenberg <drosen@google.com> Link: http://lkml.kernel.org/r/20200717195536.16069-1-phillip@squashfs.org.uk Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2020-07-24 12:42:41 -07:00
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block.c
cache.c
decompressor_multi_percpu.c
decompressor_multi.c
decompressor_single.c
decompressor.c
decompressor.h
dir.c
export.c
file_cache.c
file_direct.c
file.c
fragment.c
id.c
inode.c
Kconfig
lz4_wrapper.c
lzo_wrapper.c
Makefile
namei.c
page_actor.c
page_actor.h
squashfs_fs_i.h
squashfs_fs_sb.h
squashfs_fs.h
squashfs.h
super.c
symlink.c
xattr_id.c
xattr.c
xattr.h
xz_wrapper.c
zlib_wrapper.c
zstd_wrapper.c