3 commits

Author	SHA1	Message	Date
Zhen Lei	05911c5d96	lib/decompressors: fix spelling mistakes ... Fix some spelling mistakes in comments: sentinal ==> sentinel compresed ==> compressed dependeny ==> dependency immediatelly ==> immediately dervied ==> derived splitted ==> split nore ==> not independed ==> independent asumed ==> assumed Link: https://lkml.kernel.org/r/20210604085656.12257-1-thunder.leizhen@huawei.com Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2021-07-01 11:06:05 -07:00
Paul Cercueil	1c4dd334df	lib: decompress_unzstd: Limit output size ... The zstd decompression code, as it is right now, will most likely fail on 32-bit systems, as the default output buffer size causes the buffer's end address to overflow. Address this issue by setting a sane default to the default output size, with a value that won't overflow the buffer's end address. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Reviewed-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>	2020-09-03 10:13:09 +02:00
Nick Terrell	4963bb2b89	lib: Add zstd support to decompress ... - Add unzstd() and the zstd decompress interface. - Add zstd support to decompress_method(). The decompress_method() and unzstd() functions are used to decompress the initramfs and the initrd. The __decompress() function is used in the preboot environment to decompress a zstd compressed kernel. The zstd decompression function allows the input and output buffers to overlap because that is used by x86 kernel decompression. Signed-off-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20200730190841.2071656-3-nickrterrell@gmail.com	2020-07-31 11:49:08 +02:00