--- /dev/null 2021-10-25 08:23:06.499675237 +0100
+++ annobin-8.79/tests/unicode-test 2021-10-25 12:37:55.699238393 +0100
@@ -0,0 +1,41 @@
+#!/bin/bash
+
+# Copyright (c) 2021 Red Hat.
+#
+# This is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published
+# by the Free Software Foundation; either version 3, or (at your
+# option) any later version.
+#
+# It is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+ANNOCHECK=${ANNOCHECK:-../annocheck/annocheck}
+GCC=${GCC:-gcc}
+
+# Mimics how glibc builds C sources without annotation.
+
+OPTS="-O2 -g -Wl,-z,now -pie -fpie"
+
+$GCC $OPTS $srcdir/trick-hello.s -o trick-hello.exe
+if [ $? != 0 ];
+then
+ echo "unicode-test: FAIL: Could not compile test source file"
+ exit 1
+fi
+
+# Run annocheck
+
+OPTS="--ignore-gaps --skip-cf-protection --skip-glibcxx-assertions --skip-short-enum --skip-optimization --skip-stack-prot"
+
+$ANNOCHECK trick-hello.exe $OPTS > unicode.out
+grep -e "FAIL: Symbol names containing multibyte characters" unicode.out
+if [ $? != 0 ];
+then
+ echo "unicode-test: FAIL: annocheck did not detect suspicious symbol names"
+ $ANNOCHECK trick-hello.exe $OPTS --verbose
+ exit 1
+fi
+
--- /dev/null 2021-10-25 08:23:06.499675237 +0100
+++ annobin-8.79/tests/trick-hello.s 2021-10-25 15:10:39.722116284 +0100
@@ -0,0 +1,33 @@
+ .file "trick-hello.c"
+ .text
+ .section .rodata
+.LC0:
+ .string "hah, gotcha!"
+ .text
+ .globl heoll
+ .type heoll, @function
+heoll:
+.LFB0:
+ nop
+.LFE0:
+ .size heoll, .-heoll
+ .section .rodata
+.LC1:
+ .string "Hello world"
+ .text
+ .globl hello
+ .type hello, @function
+hello:
+.LFB1:
+ nop
+.LFE1:
+ .size hello, .-hello
+ .globl main
+ .type main, @function
+main:
+.LFB2:
+ nop
+.LFE2:
+ .size main, .-main
+ .ident "GCC: (GNU) 11.2.1 20210728 (Red Hat 11.2.1-1)"
+ .section .note.GNU-stack,"",@progbits
diff -rup annobin.orig/Makefile.in annobin-9.29/Makefile.in
--- annobin.orig/Makefile.in 2021-10-28 10:31:57.060267035 +0100
+++ annobin-9.29/Makefile.in 2021-10-28 10:32:06.211206161 +0100
@@ -323,6 +323,7 @@ plugindir = @plugindir@
prefix = @prefix@
program_transform_name = @program_transform_name@
psdir = @psdir@
+runstatedir = @runstatedir@
sbindir = @sbindir@
sharedstatedir = @sharedstatedir@
srcdir = @srcdir@
Only in annobin-9.29: Makefile.in.orig
diff -rup annobin.orig/annocheck/Makefile.in annobin-9.29/annocheck/Makefile.in
--- annobin.orig/annocheck/Makefile.in 2021-10-28 10:31:57.088266849 +0100
+++ annobin-9.29/annocheck/Makefile.in 2021-10-28 10:32:06.212206154 +0100
@@ -314,6 +314,7 @@ plugindir = @plugindir@
prefix = @prefix@
program_transform_name = @program_transform_name@
psdir = @psdir@
+runstatedir = @runstatedir@
sbindir = @sbindir@
sharedstatedir = @sharedstatedir@
srcdir = @srcdir@
Only in annobin-9.29/annocheck: Makefile.in.orig
diff -rup annobin.orig/annocheck/hardened.c annobin-9.29/annocheck/hardened.c
--- annobin.orig/annocheck/hardened.c 2021-10-28 10:31:57.088266849 +0100
+++ annobin-9.29/annocheck/hardened.c 2021-10-28 10:33:13.936755663 +0100
@@ -119,6 +119,7 @@ enum test_index
TEST_STACK_REALIGN,
TEST_TEXTREL,
TEST_THREADS,
+ TEST_UNICODE,
TEST_WARNINGS,
TEST_WRITEABLE_GOT,
@@ -146,6 +147,7 @@ static void show_STACK_PROT (ann
static void show_STACK_REALIGN (annocheck_data *, test *);
static void show_TEXTREL (annocheck_data *, test *);
static void show_THREADS (annocheck_data *, test *);
+static void show_UNICODE (annocheck_data *, test *);
static void show_WARNINGS (annocheck_data *, test *);
static void show_WRITEABLE_GOT (annocheck_data *, test *);
@@ -177,6 +179,7 @@ static test tests [TEST_MAX] =
TEST (stack-realign, STACK_REALIGN, "Compiled with -mstackrealign (i686 only)"),
TEST (textrel, TEXTREL, "There are no text relocations in the binary"),
TEST (threads, THREADS, "Compiled with -fexceptions"),
+ TEST (unicode, UNICODE, "No unicode symbol names"),
TEST (warnings, WARNINGS, "Compiled with -Wall"),
TEST (writeable-got, WRITEABLE_GOT, "The .got section is not writeable"),
};
@@ -288,6 +291,11 @@ interesting_sec (annocheck_data * da
if (streq (sec->secname, ".gdb_index"))
per_file.debuginfo_file = true;
+ if (tests[TEST_UNICODE].enabled
+ && (sec->shdr.sh_type == SHT_SYMTAB
+ || sec->shdr.sh_type == SHT_DYNSYM))
+ return true;
+
if (streq (sec->secname, ".text"))
{
/* Separate debuginfo files have a .text section with a non-zero
@@ -1830,6 +1838,64 @@ check_comment_section (annocheck_data *
}
static bool
+contains_suspicious_characters (const unsigned char * name)
+{
+ uint i;
+ uint len = strlen ((const char *) name);
+
+ /* FIXME: Test that locale is UTF-8. */
+
+ for (i = 0; i < len; i++)
+ {
+ unsigned char c = name[i];
+
+ if (isgraph (c))
+ continue;
+
+ /* Control characters are always suspect. So are spaces and DEL */
+ if (iscntrl (c) || c == ' ' || c == 0x7f)
+ return true;
+
+ if (c < 0x7f) /* This test is probably redundant. */
+ continue;
+
+ return true;
+ }
+
+ return false;
+}
+
+static bool
+check_symbol_section (annocheck_data * data, annocheck_section * sec)
+{
+ if (! tests[TEST_UNICODE].enabled)
+ return true;
+
+ /* Scan the symbols looking for non-ASCII characters in their names
+ that might cause problems. Note - we do not examine the string
+ tables directly as there are perfectly legitimate reasons why these
+ characters might appear in strings. But when they are used for
+ identifier names, their use is ... problematic. */
+ GElf_Sym sym;
+ uint symndx;
+
+ for (symndx = 1; gelf_getsym (sec->data, symndx, & sym) != NULL; symndx++)
+ {
+ const char * symname = elf_strptr (data->elf, sec->shdr.sh_link, sym.st_name);
+
+ if (contains_suspicious_characters ((const unsigned char *) symname))
+ {
+ tests[TEST_UNICODE].num_fail ++;
+ einfo (VERBOSE, "%s: info: multibyte symname: '%s', (%lu bytes long) in section: %s",
+ data->filename, symname, (unsigned long) strlen (symname), sec->secname);
+ if (!BE_VERBOSE)
+ break;
+ }
+ }
+ return true;
+}
+
+static bool
check_sec (annocheck_data * data,
annocheck_section * sec)
{
@@ -1837,6 +1903,8 @@ check_sec (annocheck_data * data,
selected in interesting_sec(). */
switch (sec->shdr.sh_type)
{
+ case SHT_SYMTAB:
+ case SHT_DYNSYM: return check_symbol_section (data, sec);
case SHT_NOTE: return check_note_section (data, sec);
case SHT_STRTAB: return check_string_section (data, sec);
case SHT_DYNAMIC: return check_dynamic_section (data, sec);
@@ -2617,6 +2685,19 @@ show_BRANCH_PROTECTION (annocheck_data
}
}
+static void
+show_UNICODE (annocheck_data * data, test * results)
+{
+ if (results->num_fail > 0)
+ {
+ fail (data, "Symbol names containing multibyte characters detected");
+ }
+ else
+ {
+ pass (data, "No symbol names containing multibyte characters detected");
+ }
+}
+
static void
show_ENTRY (annocheck_data * data, test * results)
{
Only in annobin-9.29/annocheck: hardened.c.orig
Only in annobin-9.29/annocheck: hardened.c.rej
Only in annobin-9.29: autom4te.cache
diff -rup annobin.orig/configure annobin-9.29/configure
--- annobin.orig/configure 2021-10-28 10:31:57.060267035 +0100
+++ annobin-9.29/configure 2021-10-28 10:32:06.215206134 +0100
@@ -761,6 +761,7 @@ infodir
docdir
oldincludedir
includedir
+runstatedir
localstatedir
sharedstatedir
sysconfdir
@@ -857,6 +858,7 @@ datadir='${datarootdir}'
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
+runstatedir='${localstatedir}/run'
includedir='${prefix}/include'
oldincludedir='/usr/include'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
@@ -1109,6 +1111,15 @@ do
| -silent | --silent | --silen | --sile | --sil)
silent=yes ;;
+ -runstatedir | --runstatedir | --runstatedi | --runstated \
+ | --runstate | --runstat | --runsta | --runst | --runs \
+ | --run | --ru | --r)
+ ac_prev=runstatedir ;;
+ -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
+ | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
+ | --run=* | --ru=* | --r=*)
+ runstatedir=$ac_optarg ;;
+
-sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
ac_prev=sbindir ;;
-sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1246,7 +1257,7 @@ fi
for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
datadir sysconfdir sharedstatedir localstatedir includedir \
oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
- libdir localedir mandir
+ libdir localedir mandir runstatedir
do
eval ac_val=\$$ac_var
# Remove trailing slashes.
@@ -1399,6 +1410,7 @@ Fine tuning of the installation director
--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
--sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
--localstatedir=DIR modifiable single-machine data [PREFIX/var]
+ --runstatedir=DIR modifiable per-process data [LOCALSTATEDIR/run]
--libdir=DIR object code libraries [EPREFIX/lib]
--includedir=DIR C header files [PREFIX/include]
--oldincludedir=DIR C header files for non-gcc [/usr/include]
Only in annobin-9.29: configure.orig
diff -rup annobin.orig/doc/Makefile.in annobin-9.29/doc/Makefile.in
--- annobin.orig/doc/Makefile.in 2021-10-28 10:31:57.061267029 +0100
+++ annobin-9.29/doc/Makefile.in 2021-10-28 10:32:06.215206134 +0100
@@ -329,6 +329,7 @@ plugindir = @plugindir@
prefix = @prefix@
program_transform_name = @program_transform_name@
psdir = @psdir@
+runstatedir = @runstatedir@
sbindir = @sbindir@
sharedstatedir = @sharedstatedir@
srcdir = @srcdir@
Only in annobin-9.29/doc: Makefile.in.orig
diff -rup annobin.orig/doc/annobin.info annobin-9.29/doc/annobin.info
--- annobin.orig/doc/annobin.info 2021-10-28 10:31:57.061267029 +0100
+++ annobin-9.29/doc/annobin.info 2021-10-28 10:32:06.215206134 +0100
@@ -609,6 +609,7 @@ File: annobin.info, Node: Hardened, Ne
[-skip-stack-realign]
[-skip-textrel]
[-skip-threads]
+ [-skip-unicode]
[-skip-writeable-got]
[-ignore-gaps]
[-disable-hardened]
@@ -718,6 +719,10 @@ code to support the test.
Check that the program makes consistent use of the '-fshort-enum'
option.
+'Unicode'
+ This test checks for the presence of multibyte characters in symbol
+ names, which are unusual and potentially dangerous.
+
The tool does support a couple of other command line options as well:
'--enable-hardened'
Only in annobin-9.29/doc: annobin.info.orig
Only in annobin-9.29/doc: annobin.info.rej
diff -rup annobin.orig/doc/annobin.texi annobin-9.29/doc/annobin.texi
--- annobin.orig/doc/annobin.texi 2021-10-28 10:31:57.061267029 +0100
+++ annobin-9.29/doc/annobin.texi 2021-10-28 10:32:06.215206134 +0100
@@ -706,6 +706,7 @@ annocheck
[@b{--skip-stack-realign}]
[@b{--skip-textrel}]
[@b{--skip-threads}]
+ [@b{--skip-unicode}]
[@b{--skip-writeable-got}]
[@b{--ignore-gaps}]
[@b{--disable-hardened}]
@@ -831,6 +832,10 @@ enabled then this test will be skipped a
Check that the program makes consistent use of the
@option{-fshort-enum} option.
+@item Unicode
+This test checks for the presence of multibyte characters in symbol
+names, which are unusual and potentially dangerous.
+
@end table
The tool does support a couple of other command line options as well:
Only in annobin-9.29/doc: annobin.texi.orig
diff -rup annobin.orig/scripts/Makefile.in annobin-9.29/scripts/Makefile.in
--- annobin.orig/scripts/Makefile.in 2021-10-28 10:31:57.061267029 +0100
+++ annobin-9.29/scripts/Makefile.in 2021-10-28 10:32:08.111193522 +0100
@@ -284,6 +284,7 @@ plugindir = @plugindir@
prefix = @prefix@
program_transform_name = @program_transform_name@
psdir = @psdir@
+runstatedir = @runstatedir@
sbindir = @sbindir@
sharedstatedir = @sharedstatedir@
srcdir = @srcdir@
Only in annobin-9.29/scripts: Makefile.in.orig
diff -rup annobin.orig/tests/Makefile.am annobin-9.29/tests/Makefile.am
--- annobin.orig/tests/Makefile.am 2021-10-28 10:31:57.089266843 +0100
+++ annobin-9.29/tests/Makefile.am 2021-10-28 10:33:47.008535672 +0100
@@ -16,6 +16,7 @@ TESTS=compile-test \
assembler-gap-test \
dynamic-notes-test \
instrumentation-test \
+ unicode-test \
section-size-test
if HAVE_DEBUGINFOD
Only in annobin-9.29/tests: Makefile.am.orig
Only in annobin-9.29/tests: Makefile.am.rej
diff -rup annobin.orig/tests/Makefile.in annobin-9.29/tests/Makefile.in
--- annobin.orig/tests/Makefile.in 2021-10-28 10:31:57.089266843 +0100
+++ annobin-9.29/tests/Makefile.in 2021-10-28 10:34:15.803344120 +0100
@@ -459,6 +459,7 @@ plugindir = @plugindir@
prefix = @prefix@
program_transform_name = @program_transform_name@
psdir = @psdir@
+runstatedir = @runstatedir@
sbindir = @sbindir@
sharedstatedir = @sharedstatedir@
srcdir = @srcdir@
@@ -477,7 +478,8 @@ top_srcdir = @top_srcdir@
TESTS = compile-test hardening-test hardening-fail-test \
missing-notes-test active-checks-test abi-test \
function-sections-test assembler-gap-test dynamic-notes-test \
- instrumentation-test section-size-test $(am__append_1)
+ instrumentation-test unicode-test section-size-test \
+ $(am__append_1)
XFAIL_TESTS = hardening-fail-test \
missing-notes-test \
active-checks-test \
@@ -739,6 +741,13 @@ instrumentation-test.log: instrumentatio
$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
--log-file $$b.log --trs-file $$b.trs \
$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+ "$$tst" $(AM_TESTS_FD_REDIRECT)
+unicode-test.log: unicode-test
+ @p='unicode-test'; \
+ b='unicode-test'; \
+ $(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+ --log-file $$b.log --trs-file $$b.trs \
+ $(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
"$$tst" $(AM_TESTS_FD_REDIRECT)
section-size-test.log: section-size-test
@p='section-size-test'; \
Only in annobin-9.29/tests: Makefile.in.orig
Only in annobin-9.29/tests: Makefile.in.rej
Only in annobin-9.29/tests: trick-hello.s
Only in annobin-9.29/tests: unicode-test