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Resolves: #892777 #952799 

- Increase limits on xdr name and record requests (#892777).
  - Consistently MANGLE/DEMANGLE init_fct, end_fct and btow_fct (#952799).
This commit is contained in:
Patsy Franklin 2013-04-23 16:52:25 -04:00
parent 209568f516
commit 7f654232b1
3 changed files with 251 additions and 1 deletions
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61
glibc-rh892777.patch Normal file
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@ -0,0 +1,61 @@
diff -Nrup a/nis/yp_xdr.c b/nis/yp_xdr.c
--- a/nis/yp_xdr.c 2012-12-24 22:02:13.000000000 -0500
+++ b/nis/yp_xdr.c 2013-04-17 15:26:50.168999686 -0400
@@ -32,6 +32,14 @@
#include <rpcsvc/yp.h>
#include <rpcsvc/ypclnt.h>
+/* The specification suggests 1024 as a maximum length of all fields,
+ but current linux systems usually don't use any limits. So, to stay
+ as much compatible as possible with recent linux systems we choose
+ limits large enough to avoid problems. */
+
+#define XDRMAXNAME 1024
+#define XDRMAXRECORD 16 * 1024 * 1024
+
bool_t
xdr_ypstat (XDR *xdrs, ypstat *objp)
{
@@ -49,21 +57,21 @@ libnsl_hidden_def (xdr_ypxfrstat)
bool_t
xdr_domainname (XDR *xdrs, domainname *objp)
{
- return xdr_string (xdrs, objp, YPMAXDOMAIN);
+ return xdr_string (xdrs, objp, XDRMAXNAME);
}
libnsl_hidden_def (xdr_domainname)
bool_t
xdr_mapname (XDR *xdrs, mapname *objp)
{
- return xdr_string (xdrs, objp, YPMAXMAP);
+ return xdr_string (xdrs, objp, XDRMAXNAME);
}
libnsl_hidden_def (xdr_mapname)
bool_t
xdr_peername (XDR *xdrs, peername *objp)
{
- return xdr_string (xdrs, objp, YPMAXPEER);
+ return xdr_string (xdrs, objp, XDRMAXNAME);
}
libnsl_hidden_def (xdr_peername)
@@ -71,7 +79,7 @@ bool_t
xdr_keydat (XDR *xdrs, keydat *objp)
{
return xdr_bytes (xdrs, (char **) &objp->keydat_val,
- (u_int *) &objp->keydat_len, YPMAXRECORD);
+ (u_int *) &objp->keydat_len, XDRMAXRECORD);
}
libnsl_hidden_def (xdr_keydat)
@@ -79,7 +87,7 @@ bool_t
xdr_valdat (XDR *xdrs, valdat *objp)
{
return xdr_bytes (xdrs, (char **) &objp->valdat_val,
- (u_int *) &objp->valdat_len, YPMAXRECORD);
+ (u_int *) &objp->valdat_len, XDRMAXRECORD);
}
libnsl_hidden_def (xdr_valdat)

181
glibc-rh952799.patch Normal file
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@ -0,0 +1,181 @@
#
# Red Hat BZ:
# https://bugzilla.redhat.com/show_bug.cgi?id=816647
#
# ChangeLog
#
#2013-03-21 Patsy Franklin <pfrankli@redhat.com>
#
# * iconv/gconv_cache.c (find_module): Demangle init_fct before
# checking for NULL. Mangle __btowc_fct if init_fct is non-NULL.
# * iconv/gconv_db.c (free_derivation): Check that __shlib_handle
# is non-NULL before demangling the end_fct. Check for NULL
# end_fct after demangling.
# (__gconv_release_step): Demangle the end_fct before checking
# it for NULL. Remove assert on __shlibc_handle != NULL.
# (gen_steps): Don't check btowc_fct for NULL before mangling.
# Demangle init_fct before checking for NULL.
# (increment_counter): Likewise
# * gconv_dl.c (__gconv_find_shlib): Don't check init_fct or
# end_fct for NULL before mangling.
# * wcsmbs/btowc.c (__btowc): Demangle btowc_fct before checking
# for NULL.
#
diff -Nrup a/iconv/gconv_cache.c b/iconv/gconv_cache.c
--- a/iconv/gconv_cache.c 2013-03-20 14:27:37.963273613 -0400
+++ b/iconv/gconv_cache.c 2013-03-20 14:30:56.705147746 -0400
@@ -208,17 +208,16 @@ find_module (const char *directory, cons
result->__data = NULL;
/* Call the init function. */
- if (result->__init_fct != NULL)
- {
- __gconv_init_fct init_fct = result->__init_fct;
+ __gconv_init_fct init_fct = result->__init_fct;
#ifdef PTR_DEMANGLE
- PTR_DEMANGLE (init_fct);
+ PTR_DEMANGLE (init_fct);
#endif
+ if (result->__init_fct != NULL)
+ {
status = DL_CALL_FCT (init_fct, (result));
#ifdef PTR_MANGLE
- if (result->__btowc_fct != NULL)
- PTR_MANGLE (result->__btowc_fct);
+ PTR_MANGLE (result->__btowc_fct);
#endif
}
}
diff -Nrup a/iconv/gconv_db.c b/iconv/gconv_db.c
--- a/iconv/gconv_db.c 2013-03-20 14:27:37.963273613 -0400
+++ b/iconv/gconv_db.c 2013-03-21 18:19:28.527148765 -0400
@@ -180,16 +180,15 @@ free_derivation (void *p)
size_t cnt;
for (cnt = 0; cnt < deriv->nsteps; ++cnt)
- if (deriv->steps[cnt].__counter > 0
- && deriv->steps[cnt].__end_fct != NULL)
+ if ((deriv->steps[cnt].__counter > 0)
+ && (deriv->steps[cnt].__shlib_handle != NULL))
{
- assert (deriv->steps[cnt].__shlib_handle != NULL);
-
__gconv_end_fct end_fct = deriv->steps[cnt].__end_fct;
#ifdef PTR_DEMANGLE
PTR_DEMANGLE (end_fct);
#endif
- DL_CALL_FCT (end_fct, (&deriv->steps[cnt]));
+ if (end_fct != NULL)
+ DL_CALL_FCT (end_fct, (&deriv->steps[cnt]));
}
/* Free the name strings. */
@@ -210,16 +209,12 @@ __gconv_release_step (struct __gconv_ste
if (step->__shlib_handle != NULL && --step->__counter == 0)
{
/* Call the destructor. */
- if (step->__end_fct != NULL)
- {
- assert (step->__shlib_handle != NULL);
-
- __gconv_end_fct end_fct = step->__end_fct;
+ __gconv_end_fct end_fct = step->__end_fct;
#ifdef PTR_DEMANGLE
- PTR_DEMANGLE (end_fct);
+ PTR_DEMANGLE (end_fct);
#endif
- DL_CALL_FCT (end_fct, (step));
- }
+ if (end_fct != NULL)
+ DL_CALL_FCT (end_fct, (step));
#ifndef STATIC_GCONV
/* Release the loaded module. */
@@ -291,13 +286,11 @@ gen_steps (struct derivation_step *best,
/* Call the init function. */
__gconv_init_fct init_fct = result[step_cnt].__init_fct;
- if (init_fct != NULL)
- {
- assert (result[step_cnt].__shlib_handle != NULL);
-
# ifdef PTR_DEMANGLE
- PTR_DEMANGLE (init_fct);
+ PTR_DEMANGLE (init_fct);
# endif
+ if (init_fct != NULL)
+ {
status = DL_CALL_FCT (init_fct, (&result[step_cnt]));
if (__builtin_expect (status, __GCONV_OK) != __GCONV_OK)
@@ -310,8 +303,7 @@ gen_steps (struct derivation_step *best,
}
# ifdef PTR_MANGLE
- if (result[step_cnt].__btowc_fct != NULL)
- PTR_MANGLE (result[step_cnt].__btowc_fct);
+ PTR_MANGLE (result[step_cnt].__btowc_fct);
# endif
}
}
@@ -391,16 +383,15 @@ increment_counter (struct __gconv_step *
/* Call the init function. */
__gconv_init_fct init_fct = step->__init_fct;
- if (init_fct != NULL)
- {
#ifdef PTR_DEMANGLE
- PTR_DEMANGLE (init_fct);
+ PTR_DEMANGLE (init_fct);
#endif
+ if (init_fct != NULL)
+ {
DL_CALL_FCT (init_fct, (step));
#ifdef PTR_MANGLE
- if (step->__btowc_fct != NULL)
- PTR_MANGLE (step->__btowc_fct);
+ PTR_MANGLE (step->__btowc_fct);
#endif
}
}
diff -Nrup a/iconv/gconv_dl.c b/iconv/gconv_dl.c
--- a/iconv/gconv_dl.c 2005-12-19 02:23:44.000000000 -0500
+++ b/iconv/gconv_dl.c 2013-03-20 14:30:56.707148662 -0400
@@ -133,10 +133,8 @@ __gconv_find_shlib (const char *name)
#ifdef PTR_MANGLE
PTR_MANGLE (found->fct);
- if (found->init_fct != NULL)
- PTR_MANGLE (found->init_fct);
- if (found->end_fct != NULL)
- PTR_MANGLE (found->end_fct);
+ PTR_MANGLE (found->init_fct);
+ PTR_MANGLE (found->end_fct);
#endif
/* We have succeeded in loading the shared object. */
diff -Nrup a/wcsmbs/btowc.c b/wcsmbs/btowc.c
--- a/wcsmbs/btowc.c 2005-12-19 02:24:47.000000000 -0500
+++ b/wcsmbs/btowc.c 2013-03-21 18:20:35.590148608 -0400
@@ -48,15 +48,15 @@ __btowc (c)
/* Get the conversion functions. */
fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE));
__gconv_btowc_fct btowc_fct = fcts->towc->__btowc_fct;
+#ifdef PTR_DEMANGLE
+ if (fcts->towc->__shlib_handle != NULL)
+ PTR_DEMANGLE (btowc_fct);
+#endif
if (__builtin_expect (fcts->towc_nsteps == 1, 1)
&& __builtin_expect (btowc_fct != NULL, 1))
{
/* Use the shortcut function. */
-#ifdef PTR_DEMANGLE
- if (fcts->towc->__shlib_handle != NULL)
- PTR_DEMANGLE (btowc_fct);
-#endif
return DL_CALL_FCT (btowc_fct, (fcts->towc, (unsigned char) c));
}
else

10
glibc.spec
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@ -27,7 +27,7 @@
Summary: The GNU libc libraries
Name: glibc
Version: %{glibcversion}
Release: 5%{?dist}
Release: 6%{?dist}
# GPLv2+ is used in a bunch of programs, LGPLv2+ is used for libraries.
# Things that are linked directly into dynamically linked programs
# and shared libraries (e.g. crt files, lib*_nonshared.a) have an additional
@ -108,6 +108,8 @@ Patch0034: %{name}-fedora-elf-init-hidden_undef.patch
# Needs to be sent upstream
Patch0035: %{name}-rh911307.patch
Patch0036: %{name}-rh892777.patch
Patch0037: %{name}-rh952799.patch
#
# Patches from upstream
@ -406,6 +408,8 @@ package or when debugging this package.
%patch0034 -p1
%patch2028 -p1
%patch0035 -p1
%patch0036 -p1
%patch0037 -p1
%patch2029 -p1
%patch1030 -p1
@ -1207,6 +1211,10 @@ rm -f *.filelist*
%endif
%changelog
* Tue Apr 23 2013 Patsy Franklin <pfrankli@redhat.com> - 2.17-6
- Increase limits on xdr name and record requests (#892777).
- Consistently MANGLE/DEMANGLE init_fct, end_fct and btow_fct (#952799).
* Thu Mar 28 2013 Siddhesh Poyarekar <siddhesh@redhat.com> - 2.17-5
- Don't add input group during initgroups_dyn in hesiod (#921760).