Commit Graph

7 Commits

Author SHA1 Message Date
Konrad Rzeszutek Wilk 16c0dbf4bc lzma: Make sure we don't dereference past array
The two dimensional array p->posSlotEncoder[4][64] is being dereferenced
using the GetLenToPosState() macro which checks if len is less than 5,
and if so subtracts 2 from it. If len = 0, that is 0 - 2 = 4294967294.
Obviously we don't want to dereference that far out so we check if the
position found is greater or equal kNumLenToPosStates (4) and bail out.

N.B.: Upstream LZMA 18.05 and later has this function completely rewritten
without any history.

Fixes: CID 51526

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-07-29 16:55:48 +02:00
Vladimir 'phcoder' Serbinenko 4e27343fb0 * conf/Makefile.common (CFLAGS_GNULIB): Add
-Wno-unsafe-loop-optimizations.
	* configure.ac: Remove -Wmissing-declarations and -Wmissing-prototypes
	on tools.
	* grub-core/commands/legacycfg.c: Add pragma to skip
	-Wunsafe-loop-optimizations.
	(check_password_md5_real): Fix loop counter type.
	* grub-core/commands/testload.c (grub_cmd_testload): Fix over the EOF
	reading.
	* grub-core/disk/ldm.c (grub_util_get_ldm): Fix logic error.
	* grub-core/fs/zfs/zfs_sha256.c (zio_checksum_SHA256): Add safety
	loop condition.
	* grub-core/io/gzio.c: Add pragma to skip -Wunsafe-loop-optimizations.
	* grub-core/lib/LzmaEnc.c (GetOptimum): Avoid possible infinite loop.
	* grub-core/net/net.c (grub_net_route_address): Add safety loop
	condition.
	* grub-core/normal/charset.c (bidi_line_wrap): Likewise.
	* grub-core/normal/cmdline.c (grub_set_history): Fix loop types and
	avoid possible infinite loops.
	* grub-core/script/parser.y: Add pragma to skip -Wmissing-declarations
	and -Wunsafe-loop-optimizations.
	* grub-core/script/yylex.l: Likewise.
	* util/grub-mkfont.c: Add pragma to skip -Wunsafe-loop-optimizations.
	(print_glyphs): Avoid infinite loops.
	* util/grub-mkimage.c (compress_kernel_xz): Fix format security.
2012-02-24 12:30:32 +01:00
Vladimir 'phcoder' Serbinenko ebcecdf1c3 Increase warning level.
* conf/Makefile.common (CFLAGS_GNULIB): Add -Wno-redundant-decls
	-Wno-unreachable-code -Wno-conversion -Wno-old-style-definition.
	* configure.ac (HOST_CFLAGS): Add bunch of -W arguments.
	(TARGET_CFLAGS): Likewise.
	(HOST_CFLAGS): Add -Werror unless --disable-werror is activated.
	* grub-core/Makefile.core.def (decompressor_xz): Add
	-Wno-unreachable-code.
	(normal): Add -Wno-redundant-decls.
	(xzio): Add -Wno-unreachable-code.
	(lzopio): Add -Wno-redundant-decls -Wno-error.
	* grub-core/commands/acpi.c: Add exception to -Wcast-align.
	* grub-core/commands/lsacpi.c: Add exception to -Wcast-align.
	* grub-core/gensymlist.sh: Add exception to -Wmissing-format-attribute.
	* grub-core/kern/dl.c: Add exception to -Wcast-align.
	* grub-core/kern/efi/efi.c (grub_efi_modules_addr): Likewise.
	* grub-core/kern/i386/coreboot/init.c: Add exception to
	-Wsuggest-attribute=noreturn.
	* grub-core/kern/ia64/dl.c: Add exception to -Wcast-align.
	* grub-core/kern/ia64/dl_helper.c: Likewise.
	* grub-core/kern/mips/dl.c: Likewise.
	* grub-core/kern/sparc64/dl.c: Likewise.
	* grub-core/lib/LzmaEnc.c: Add exception to -Wshadow.
	* grub-core/lib/libgcrypt_wrap/cipher_wrap.h (memcpy): Likewise.
	(memcmp): Likewise.
	* grub-core/lib/pbkdf2.c: Add exception to -Wunreachable-code.
	* grub-core/loader/ia64/efi/linux.c: Add exception to -Wcast-align.
	* grub-core/loader/mips/linux.c: Likewise.
	* grub-core/loader/multiboot_elfxx.c: Likewise.
	* grub-core/script/parser.y: Add exception to -Wunreachable-code.
	* grub-core/video/sm712.c: Add exception to -Wcast-align.
	* util/import_gcry.py: Add -Wno-cast-align to modules checked by hand.
	* grub-core/font/font.c (grub_font_loader_init): Add explicit cast and
	fixme.
	* grub-core/fs/iso9660.c (grub_iso9660_iterate_dir): Likewise.
	* grub-core/kern/i386/multiboot_mmap.c (grub_machine_mmap_init):
	Fix prototype.
2012-02-10 16:48:48 +01:00
Vladimir 'phcoder' Serbinenko a655c182c5 * grub-core/disk/ldm.c (grub_util_get_ldm): Remove unused variables.
(grub_util_ldm_embed): Likewise.
2012-02-10 12:40:22 +01:00
Vladimir 'phcoder' Serbinenko 49a45021c1 * grub-core/lib/LzmaEnc.c (LzmaEnc_CodeOneBlock): Remove set but not
used variable.
	* grub-core/kern/ia64/dl_helper.c (grub_ia64_dl_get_tramp_got_size):
	Likewise.
2011-11-08 19:46:41 +01:00
Yves Blusseau 1d12cf2947 * grub-core/lib/LzFind.c: Add missing include.
* grub-core/lib/LzmaEnc.c: Likewise.
    * grub-core/script/lexer.c: Likewise.
    * grub-core/script/yylex.l: Likewise.
    * util/grub-macho2img.c: Likewise.
    * util/grub-menulst2cfg.c: Likewise.
    * util/grub-mklayout.c: Likewise.
    * util/grub-mkpasswd-pbkdf2.c
    * util/grub-mkrelpath.c: Likewise.
    * util/resolve.c: Likewise.
2010-09-24 09:19:57 +02:00
BVK Chaitanya 8c41176882 automake commit without merge history 2010-05-06 11:34:04 +05:30