Attachment 7533 Details for Bug 8920 – Patch used in Debian and Ubuntu

[patch] Patch used in Debian and Ubuntu

initialize_password_db-null-deref (text/plain), 1.03 KB, created by Debian samba package maintainers (PUBLIC MAILING LIST) on 2012-05-08 20:09:54 UTC

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Creator: Debian samba package maintainers (PUBLIC MAILING LIST)

Created: 2012-05-08 20:09:54 UTC

Size: 1.03 KB

patch

obsolete

>Description: Avoid null dereference in initialize_password_db()
> When initialize_password_db() is called with reload=True, it's assumed that
> the free_private_data member of pdb_methods is non-null.  This is not
> necessarily the case, as the tdb backend has no private data and therefore
> no free function.  Check to see if we have private data that needs freed
> before calling.
>Author: Steve Langasek <steve.langasek@ubuntu.com>
>Bug-Ubuntu: https://bugs.launchpad.net/bugs/829221
>
>Index: ubuntu/source3/passdb/pdb_interface.c
>===================================================================
>--- ubuntu.orig/source3/passdb/pdb_interface.c
>+++ ubuntu/source3/passdb/pdb_interface.c
>@@ -176,7 +176,8 @@
> 	static struct pdb_methods *pdb = NULL;
> 
> 	if ( pdb && reload ) {
>-		pdb->free_private_data( &(pdb->private_data) );
>+		if (pdb->private_data)
>+			pdb->free_private_data( &(pdb->private_data) );
> 		if ( !NT_STATUS_IS_OK( make_pdb_method_name( &pdb, lp_passdb_backend() ) ) ) {
> 			char *msg = NULL;
> 			if (asprintf(&msg, "pdb_get_methods_reload: "

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Attachments on bug 8920: 7533 | 7539