Star64_linux/scripts
Mike Frysinger 3a5dd791ab modpost: fix segfault in sym_is() with prefixed arches
The sym_is() compares a symbol in an attempt to automatically skip symbol
prefixes.  It does this first by searching the real symbol with the normal
unprefixed symbol.  But then it uses the length of the original symbol to
check the end of the substring instead of the length of the symbol it is
looking for.  On non-prefixed arches, this is effectively the same thing,
so there is no problem.  On prefixed-arches, since this is exceeds by just
one byte, a crash is rare and it is usually a NUL byte anyways.  But every
once in a blue moon, you get the right page alignment and it segfaults.

For example, on the Blackfin arch, sym_is() will be called with the real
symbol "___mod_usb_device_table" as "symbol" when looking for the normal
symbol "__mod_usb_device_table" as "name".  The substring will thus return
one byte into "symbol" and store it into "match".  But then "match" will
be indexed with the length of "symbol" instead of "name" and so we will
exceed the storage.  i.e. the code ends up doing:
	char foo[] = "abc"; return foo[strlen(foo)+1] == '\0';

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-17 11:00:53 -08:00
..
basic
dtc dtc: Mark various internal functions static 2009-11-15 15:01:41 -08:00
genksyms genksyms: properly consider EXPORT_UNUSED_SYMBOL{,_GPL}() 2009-12-12 13:08:16 +01:00
kconfig
ksymoops
mod modpost: fix segfault in sym_is() with prefixed arches 2010-01-17 11:00:53 -08:00
package
rt-tester
selinux SELinux: header generation may hit infinite loop 2009-11-23 09:00:44 +11:00
tracing
.gitignore
bin2c.c
binoffset.c update the email address of Randy Dunlap 2006-01-03 13:37:51 +01:00
bloat-o-meter
bootgraph.pl
checkincludes.pl
checkkconfigsymbols.sh kbuild,scripts: use non-builtin echo for '-e' 2009-10-11 23:21:25 +02:00
checkpatch.pl remove my email address from checkpatch. 2010-01-12 20:56:52 -08:00
checkstack.pl
checksyscalls.sh
checkversion.pl
cleanfile scripts: Make cleanfile/cleanpatch warn about long lines 2007-07-16 21:15:50 +02:00
cleanpatch scripts: Make cleanfile/cleanpatch warn about long lines 2007-07-16 21:15:50 +02:00
config
conmakehash.c Fix all -Wmissing-prototypes warnings in x86 defconfig 2009-09-23 07:39:28 -07:00
decodecode scripts: improve the decodecode script 2008-12-03 22:36:39 +01:00
diffconfig kconfig: add diffconfig utility 2008-07-25 22:12:41 +02:00
export_report.pl kbuild: fix perl usage in export_report.pl 2007-10-12 21:13:50 +02:00
extract-ikconfig kconfig: have extract-ikconfig read ELF files 2009-08-18 22:00:18 -04:00
gcc-version.sh
gcc-x86_32-has-stack-protector.sh stackprotector: fix multi-word cross-builds 2009-02-11 12:17:29 +01:00
gcc-x86_64-has-stack-protector.sh stackprotector: fix multi-word cross-builds 2009-02-11 12:17:29 +01:00
gen_initramfs_list.sh
get_maintainer.pl scripts/get_maintainer.pl: fix file exclusion X: logic 2010-01-11 09:34:05 -08:00
gfp-translate mm: add a gfp-translate script to help understand page allocation failure reports 2009-06-16 19:47:44 -07:00
headerdep.pl
headers.sh
headers_check.pl kbuild/headers_check: refine extern check 2009-06-09 22:37:56 +02:00
headers_install.pl
kallsyms.c kallsyms: fix segfault in prefix_underscores_count() 2009-09-23 07:39:30 -07:00
Kbuild.include
kernel-doc tracing: Add DEFINE_EVENT(), DEFINE_SINGLE_EVENT() support to docbook 2009-12-02 09:57:37 +01:00
Lindent
Makefile
Makefile.build
Makefile.clean
Makefile.fwinst
Makefile.headersinst kbuild: fix "Argument list too long" error for "make headers_check", 2009-06-09 22:37:56 +02:00
Makefile.host
Makefile.lib kbuild: really fix bzImage build with non-bash sh 2010-01-13 13:27:24 +01:00
Makefile.modbuiltin
Makefile.modinst
Makefile.modpost
makelst
markup_oops.pl markup_oops.pl: fix error with x86 2010-01-16 12:15:37 -08:00
mkcompile_h
mkmakefile kbuild: teach mkmakfile to be silent 2008-12-03 21:32:02 +01:00
mksysmap
mkuboot.sh
mkversion
module-common.lds
namespace.pl x86: fixup the x86 namespace change in scripts/namespace.pl 2007-10-11 17:56:02 +02:00
patch-kernel
pnmtologo.c
profile2linkerlist.pl
recordmcount.pl tracing/x86: Derive arch from bits argument in recordmcount.pl 2010-01-11 23:49:35 -05:00
setlocalversion
show_delta
tags.sh
unifdef.c
ver_linux