6.1-stable review patch. If anyone has any objections, please let me know.
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From: Martin Nybo Andersen tweek@tweek.dk
commit fbf5892df21a8ccfcb2fda0fd65bc3169c89ed28 upstream.
Kmod is now (since kmod commit 09c9f8c5df04 ("libkmod: Use kernel decompression when available")) using the kernel decompressor, when loading compressed modules.
However, the kernel XZ decompressor is XZ Embedded, which doesn't handle CRC64 and dictionaries larger than 1MiB.
Use CRC32 and 1MiB dictionary when XZ compressing and installing kernel modules.
Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1050582 Signed-off-by: Martin Nybo Andersen tweek@tweek.dk Signed-off-by: Masahiro Yamada masahiroy@kernel.org Cc: Christoph Biedl linux-kernel.bfrz@manchmal.in-ulm.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- scripts/Makefile.modinst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/scripts/Makefile.modinst +++ b/scripts/Makefile.modinst @@ -99,7 +99,7 @@ endif quiet_cmd_gzip = GZIP $@ cmd_gzip = $(KGZIP) -n -f $< quiet_cmd_xz = XZ $@ - cmd_xz = $(XZ) --lzma2=dict=2MiB -f $< + cmd_xz = $(XZ) --check=crc32 --lzma2=dict=1MiB -f $< quiet_cmd_zstd = ZSTD $@ cmd_zstd = $(ZSTD) -T0 --rm -f -q $<