From: Tyler Retzlaff <roretzla@linux.microsoft.com>
To: Bruce Richardson <bruce.richardson@intel.com>
Cc: dev@dpdk.org, ciara.power@intel.com
Subject: Re: [PATCH v3 5/5] telemetry: remove VLA in json string format function
Date: Fri, 7 Apr 2023 12:54:15 -0700 [thread overview]
Message-ID: <20230407195415.GF3014@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net> (raw)
In-Reply-To: <20230405160326.186921-6-bruce.richardson@intel.com>
On Wed, Apr 05, 2023 at 05:03:26PM +0100, Bruce Richardson wrote:
> Since variable length arrays (VLAs) are potentially insecure and
> unsupported by some compilers, rework the code to remove their use. As
> with previous changes to remove VLAs in the telemetry code, this
> function uses two methods to avoid modifying the buffer when adding to
> it fails:
> * if there are only a few characters in the buffer, save them off to
> restore on failure, then use the buffer as-is,
> * otherwise use malloc rather than a VLA to allocate a temporary buffer
> and copy from that on success only.
>
> Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
> ---
Acked-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
next prev parent reply other threads:[~2023-04-07 19:54 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-10 18:18 [PATCH] telemetry: fix autotest failures on Alpine Bruce Richardson
2023-03-10 19:08 ` Stephen Hemminger
2023-03-13 9:38 ` Bruce Richardson
2023-04-05 15:44 ` [PATCH v2 0/5] telemetry: remove variable length arrays Bruce Richardson
2023-04-05 15:44 ` [PATCH v2 1/5] telemetry: fix autotest failures on Alpine Bruce Richardson
2023-04-07 19:21 ` Tyler Retzlaff
2023-04-11 8:43 ` Bruce Richardson
2023-04-05 15:44 ` [PATCH v2 2/5] telemetry: remove variable length array in printf fn Bruce Richardson
2023-04-05 15:44 ` [PATCH v2 3/5] telemetry: split out body of json string format fn Bruce Richardson
2023-04-05 15:44 ` [PATCH v2 4/5] telemetry: rename local variables Bruce Richardson
2023-04-05 15:44 ` [PATCH v2 5/5] telemetry: remove VLA in json string format function Bruce Richardson
2023-04-05 16:03 ` [PATCH v3 0/5] telemetry: remove variable length arrays Bruce Richardson
2023-04-05 16:03 ` [PATCH v3 1/5] telemetry: fix autotest failures on Alpine Bruce Richardson
2023-04-07 19:22 ` Tyler Retzlaff
2023-04-05 16:03 ` [PATCH v3 2/5] telemetry: remove variable length array in printf fn Bruce Richardson
2023-04-07 19:25 ` Tyler Retzlaff
2023-04-05 16:03 ` [PATCH v3 3/5] telemetry: split out body of json string format fn Bruce Richardson
2023-04-07 19:28 ` Tyler Retzlaff
2023-04-05 16:03 ` [PATCH v3 4/5] telemetry: rename local variables Bruce Richardson
2023-04-07 19:50 ` Tyler Retzlaff
2023-04-11 8:58 ` Bruce Richardson
2023-04-05 16:03 ` [PATCH v3 5/5] telemetry: remove VLA in json string format function Bruce Richardson
2023-04-07 19:54 ` Tyler Retzlaff [this message]
2023-05-25 7:12 ` David Marchand
2023-05-24 20:47 ` [PATCH v3 0/5] telemetry: remove variable length arrays Thomas Monjalon
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