* [PATCH] gssd: ensure that preferred_realm is non-NULL before passing it to strcmp
@ 2014-09-08 16:35 Jeff Layton
2014-09-16 13:30 ` Steve Dickson
0 siblings, 1 reply; 2+ messages in thread
From: Jeff Layton @ 2014-09-08 16:35 UTC (permalink / raw)
To: steved; +Cc: linux-nfs
It's possible for "preferred_realm" to be NULL, in which case we
don't want to pass it to strcmp. Other places that use this variable
test whether it's NULL first -- we need to do the same here.
This should fix the gssd crash reported here:
https://bugzilla.redhat.com/show_bug.cgi?id=1108615
Reported-by: Brian J. Murrell <brian@interlinx.bc.ca>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
---
utils/gssd/krb5_util.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/utils/gssd/krb5_util.c b/utils/gssd/krb5_util.c
index 8369fdf0ed27..f1ebc0d09731 100644
--- a/utils/gssd/krb5_util.c
+++ b/utils/gssd/krb5_util.c
@@ -876,7 +876,7 @@ find_keytab_entry(krb5_context context, krb5_keytab kt, const char *tgtname,
i = 0;
realm = realmnames[i];
- if (strcmp (realm, preferred_realm) != 0) {
+ if (preferred_realm && strcmp (realm, preferred_realm) != 0) {
realm = preferred_realm;
/* resetting the realmnames index */
i = -1;
--
1.9.3
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] gssd: ensure that preferred_realm is non-NULL before passing it to strcmp
2014-09-08 16:35 [PATCH] gssd: ensure that preferred_realm is non-NULL before passing it to strcmp Jeff Layton
@ 2014-09-16 13:30 ` Steve Dickson
0 siblings, 0 replies; 2+ messages in thread
From: Steve Dickson @ 2014-09-16 13:30 UTC (permalink / raw)
To: Jeff Layton; +Cc: linux-nfs
On 09/08/2014 12:35 PM, Jeff Layton wrote:
> It's possible for "preferred_realm" to be NULL, in which case we
> don't want to pass it to strcmp. Other places that use this variable
> test whether it's NULL first -- we need to do the same here.
>
> This should fix the gssd crash reported here:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=1108615
>
> Reported-by: Brian J. Murrell <brian@interlinx.bc.ca>
> Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Committed...
steved.
> ---
> utils/gssd/krb5_util.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/utils/gssd/krb5_util.c b/utils/gssd/krb5_util.c
> index 8369fdf0ed27..f1ebc0d09731 100644
> --- a/utils/gssd/krb5_util.c
> +++ b/utils/gssd/krb5_util.c
> @@ -876,7 +876,7 @@ find_keytab_entry(krb5_context context, krb5_keytab kt, const char *tgtname,
> i = 0;
> realm = realmnames[i];
>
> - if (strcmp (realm, preferred_realm) != 0) {
> + if (preferred_realm && strcmp (realm, preferred_realm) != 0) {
> realm = preferred_realm;
> /* resetting the realmnames index */
> i = -1;
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2014-09-08 16:35 [PATCH] gssd: ensure that preferred_realm is non-NULL before passing it to strcmp Jeff Layton
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