From: Steve Dickson <steved@redhat.com>
To: NeilBrown <neilb@suse.de>
Cc: Linux NFS Mailing list <linux-nfs@vger.kernel.org>
Subject: Re: [PATCH] gssd: fix crash in debug message.
Date: Thu, 23 Sep 2021 12:34:20 -0400 [thread overview]
Message-ID: <c4aeddc9-f2c1-d5dd-dc51-0db72f460ed9@redhat.com> (raw)
In-Reply-To: <163116618506.12570.5744024691858636230@noble.neil.brown.name>
On 9/9/21 1:43 AM, NeilBrown wrote:
>
> A recent cleanup of debug messages added func and tid format specifiers
> to a debug message (when full hostname was different), but the func name
> and tid were NOT added as arguments.
>
> Consequently there weren't enough args, random bytes of the stack were
> interpreted as a pointer, and rpc.gssd crashed (when -v was specified).
>
> Fixes: b538862a5135 ("gssd: Cleaned up debug messages")
> Signed-off-by: NeilBrown <neilb@suse.de>
Committed... (tag: nfs-utils-2-5-5-rc3)
Thanks for the clean up!!
steved.
> ---
> utils/gssd/krb5_util.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/utils/gssd/krb5_util.c b/utils/gssd/krb5_util.c
> index 6d059f332881..e3f270e948ac 100644
> --- a/utils/gssd/krb5_util.c
> +++ b/utils/gssd/krb5_util.c
> @@ -673,8 +673,8 @@ get_full_hostname(const char *inhost, char *outhost, int outhostlen)
> *c = tolower(*c);
>
> if (get_verbosity() && strcmp(inhost, outhost))
> - printerr(1, "%s(0x%0lx): inhost '%s' different than outhost'%s'\n",
> - inhost, outhost);
> + printerr(1, "%s(0x%0lx): inhost '%s' different than outhost '%s'\n",
> + __func__, tid, inhost, outhost);
>
> retval = 0;
> out:
>
prev parent reply other threads:[~2021-09-23 16:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-10 15:08 [PATCH] gssd: Cleaned up debug messages Steve Dickson
2021-06-10 18:06 ` Steve Dickson
2021-09-09 5:43 ` [PATCH] gssd: fix crash in debug message NeilBrown
2021-09-15 6:34 ` Petr Vorel
2021-09-23 16:34 ` Steve Dickson [this message]
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