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From: Bruce Richardson <bruce.richardson@intel.com>
To: "Shetty, Praveen" <praveen.shetty@intel.com>
Cc: "stable@dpdk.org" <stable@dpdk.org>, "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [PATCH 1/2] net/idpf: fix overflow on store of single-queue settings
Date: Fri, 18 Sep 2026 15:47:16 +0100	[thread overview]
Message-ID: <aq1O9M440uyJKA0k@bricha3-mobl1.ger.corp.intel.com> (raw)
In-Reply-To: <DM3PPF291EF9BF15763AC84A0C243D922229DBA2@DM3PPF291EF9BF1.namprd11.prod.outlook.com>

On Tue, Sep 15, 2026 at 11:41:32AM +0100, Shetty, Praveen wrote:
> The Rx and Tx single queue settings in idpf driver are both boolean values, but the parse_bool function writes to them as int. This causes an extra 3 bytes to be written beyond the variable itself.
> Fix by changing store type to bool.
> 
> Bugzilla ID: 2042
> Fixes: 549343c25db8 ("net/idpf: support device initialization")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> ===
> Note: this fix is superceded by the kvargs numeric args patchset [1].
> However, that patchset relies on new kvargs features unlikely to be backported, so this standalone fix is useful for backporting or if the whole other set doesn't make the 26.11 release.
> 
> [1] https://patches.dpdk.org/project/dpdk/list/?series=39247
> ---
>  drivers/net/intel/idpf/idpf_ethdev.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/intel/idpf/idpf_ethdev.c b/drivers/net/intel/idpf/idpf_ethdev.c
> index c13505416a..9fd5b28adb 100644
> --- a/drivers/net/intel/idpf/idpf_ethdev.c
> +++ b/drivers/net/intel/idpf/idpf_ethdev.c
> @@ -1247,7 +1247,7 @@ parse_vport(const char *key, const char *value, void *args)  static int  parse_bool(const char *key, const char *value, void *args)  {
> -	int *i = args;
> +	bool *i = args;
>  	char *end;
>  	int num;
>  
> @@ -1261,7 +1261,7 @@ parse_bool(const char *key, const char *value, void *args)
>  		return -EINVAL;
>  	}
>  
> -	*i = num;
> +	*i = (num == 1);
>  	return 0;
>  }
>  
> --
> 
> Looks good to me,
> Acked-by: Praveen Shetty <praveen.shetty@intel.com>
> 
Thanks.

Both patches squashed into one and applied to dpdk-next-net-intel.

/Bruce

      reply	other threads:[~2026-09-18 14:47 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-13 17:38 [DPDK/ethdev Bug 2042] net/intel/idpf and net/intel/cpfl: four byte store into a bool bugzilla
2026-09-14 16:22 ` [PATCH 1/2] net/idpf: fix overflow on store of single-queue settings Bruce Richardson
2026-09-14 16:22   ` [PATCH 2/2] net/cpfl: " Bruce Richardson
2026-09-15 10:42     ` Shetty, Praveen
2026-09-15 10:41   ` [PATCH 1/2] net/idpf: " Shetty, Praveen
2026-09-18 14:47     ` Bruce Richardson [this message]

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