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2004-07-19  Thorsten Kukuk  <kukuk@suse.de>

	* nis/nss_compat/compat-initgroups.c (getgrent_next_nss): Don't
	allocate memory for large temporary variables with alloca.

	* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S: Compatibility
	code must have version GLIBC_2.0.  Patch by Dwayne McConnell.
This commit is contained in:
Ulrich Drepper 2004-07-23 06:27:05 +00:00
parent 54c36b13af
commit 3426e77083
2 changed files with 21 additions and 4 deletions
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8
ChangeLog
View File

@ -1,5 +1,13 @@
2004-07-19 Thorsten Kukuk <kukuk@suse.de>
* nis/nss_compat/compat-initgroups.c (getgrent_next_nss): Don't
allocate memory for large temporary variables with alloca.
2004-07-22 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S: Compatibility
code must have version GLIBC_2.0. Patch by Dwayne McConnell.
* nscd/nscd_getgr_r.c (nscd_getgr_r): Avoid read call with NULL
pointer and zero length.

17
nis/nss_compat/compat-initgroups.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1998,1999,2000,2001,2002,2003 Free Software Foundation, Inc.
/* Copyright (C) 1998-2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@suse.de>, 1998.
@ -221,7 +221,7 @@ check_and_add_group (const char *user, gid_t group, long int *start,
}
}
/* get the next group from NSS (+ entry). If the NSS module supports
/* Get the next group from NSS (+ entry). If the NSS module supports
initgroups_dyn, get all entries at once. */
static enum nss_status
getgrent_next_nss (ent_t *ent, char *buffer, size_t buflen, const char *user,
@ -241,8 +241,12 @@ getgrent_next_nss (ent_t *ent, char *buffer, size_t buflen, const char *user,
database with getgrent_r. */
if (nss_initgroups_dyn && nss_getgrgid_r)
{
long int mystart = 0, mysize = limit;
gid_t *mygroupsp = __alloca (limit * sizeof (gid_t));
long int mystart = 0;
long int mysize = limit;
gid_t *mygroupsp = malloc (limit * sizeof (gid_t));
if (mygroupsp == NULL)
return NSS_STATUS_TRYAGAIN;
/* For every gid in the list we get from the NSS module,
get the whole group entry. We need to do this, since we
@ -280,8 +284,13 @@ getgrent_next_nss (ent_t *ent, char *buffer, size_t buflen, const char *user,
check_and_add_group (user, group, start, size, groupsp,
limit, &grpbuf);
}
free (mygroupsp);
return NSS_STATUS_NOTFOUND;
}
free (mygroupsp);
}
/* If we come here, the NSS module does not support initgroups_dyn