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2004-12-01  Jakub Jelinek  <jakub@redhat.com>

	* elf/rtld.c (process_envvars): Don't consider LD_SHOW_AUXV
	and LD_DYNAMIC_WEAK if __libc_enable_secure.
	If __libc_enable_secure, /etc/suid-debug doesn't exist and
	program will be actually run, turn off all debugging.
	* sysdeps/generic/unsecvars.h (UNSECURE_ENVVARS): Add LD_DEBUG,
	LD_DYNAMIC_WEAK and LD_SHOW_AUXV.
This commit is contained in:
Ulrich Drepper 2004-12-07 06:55:06 +00:00
parent bbd0bf24e9
commit 00a121627c
3 changed files with 21 additions and 3 deletions
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9
ChangeLog
View file

@ -1,3 +1,12 @@
2004-12-01 Jakub Jelinek <jakub@redhat.com>
* elf/rtld.c (process_envvars): Don't consider LD_SHOW_AUXV
and LD_DYNAMIC_WEAK if __libc_enable_secure.
If __libc_enable_secure, /etc/suid-debug doesn't exist and
program will be actually run, turn off all debugging.
* sysdeps/generic/unsecvars.h (UNSECURE_ENVVARS): Add LD_DEBUG,
LD_DYNAMIC_WEAK and LD_SHOW_AUXV.
2004-12-06 Jakub Jelinek <jakub@redhat.com>
* time/tzset.c (tzset_internal): If + or - is seen,

12
elf/rtld.c
View file

@ -2158,7 +2158,8 @@ process_envvars (enum mode *modep)
case 9:
/* Test whether we want to see the content of the auxiliary
array passed up from the kernel. */
if (memcmp (envline, "SHOW_AUXV", 9) == 0)
if (!INTUSE(__libc_enable_secure)
&& memcmp (envline, "SHOW_AUXV", 9) == 0)
_dl_show_auxv ();
break;
@ -2191,7 +2192,8 @@ process_envvars (enum mode *modep)
break;
}
if (memcmp (envline, "DYNAMIC_WEAK", 12) == 0)
if (!INTUSE(__libc_enable_secure)
&& memcmp (envline, "DYNAMIC_WEAK", 12) == 0)
GLRO(dl_dynamic_weak) = 1;
break;
@ -2265,7 +2267,11 @@ process_envvars (enum mode *modep)
while (*nextp != '\0');
if (__access ("/etc/suid-debug", F_OK) != 0)
unsetenv ("MALLOC_CHECK_");
{
unsetenv ("MALLOC_CHECK_");
if (mode == normal)
GLRO(dl_debug_mask) = 0;
}
}
/* If we have to run the dynamic linker in debugging mode and the
LD_DEBUG_OUTPUT environment variable is given, we write the debug

3
sysdeps/generic/unsecvars.h
View file

@ -5,9 +5,12 @@
"LD_PRELOAD\0" \
"LD_LIBRARY_PATH\0" \
"LD_ORIGIN_PATH\0" \
"LD_DEBUG\0" \
"LD_DEBUG_OUTPUT\0" \
"LD_PROFILE\0" \
"LD_USE_LOAD_BIAS\0" \
"LD_DYNAMIC_WEAK\0" \
"LD_SHOW_AUXV\0" \
"GCONV_PATH\0" \
"GETCONF_DIR\0" \
"HOSTALIASES\0" \