[v2,00/44] fix segment fault when parse args

  The rte_kvargs_process() was used to parse KV pairs, it also supports
to parse 'only keys' (e.g. socket_id) type. And the callback function
parameter 'value' is NULL when parsed 'only keys'.

It may leads to segment fault when parse args with 'only key', this
patchset fixes rest of them.

Chengwen Feng (44):
  app/pdump: fix segment fault when parse args
  ethdev: fix segment fault when parse args
  net/memif: fix segment fault when parse devargs
  net/pcap: fix segment fault when parse devargs
  net/ring: fix segment fault when parse devargs
  net/sfc: fix segment fault when parse devargs
  net/af_xdp: fix segment fault when parse devargs
  net/ark: fix segment fault when parse devargs
  net/cnxk: fix segment fault when parse devargs
  net/cxgbe: fix segment fault when parse devargs
  net/dpaa2: fix segment fault when parse devargs
  net/ena: fix segment fault when parse devargs
  net/enic: fix segment fault when parse devargs
  net/fm10k: fix segment fault when parse devargs
  net/i40e: fix segment fault when parse devargs
  net/iavf: fix segment fault when parse devargs
  net/ice: fix segment fault when parse devargs
  net/idpf: fix segment fault when parse devargs
  net/ionic: fix segment fault when parse devargs
  net/mana: fix segment fault when parse devargs
  net/mlx4: fix segment fault when parse devargs
  net/mvneta: fix segment fault when parse devargs
  net/mvpp2: fix segment fault when parse devargs
  net/netvsc: fix segment fault when parse devargs
  net/octeontx: fix segment fault when parse devargs
  net/pfe: fix segment fault when parse devargs
  net/qede: fix segment fault when parse devargs
  baseband/la12xx: fix segment fault when parse devargs
  bus/pci: fix segment fault when parse args
  common/mlx5: fix segment fault when parse devargs
  crypto/cnxk: fix segment fault when parse devargs
  crypto/dpaa_sec: fix segment fault when parse devargs
  crypto/dpaa2_sec: fix segment fault when parse devargs
  crypto/mvsam: fix segment fault when parse devargs
  crypto/scheduler: fix segment fault when parse devargs
  dma/dpaa2: fix segment fault when parse devargs
  event/cnxk: fix segment fault when parse devargs
  event/dlb2: fix segment fault when parse devargs
  event/dpaa: fix segment fault when parse devargs
  event/octeontx: fix segment fault when parse devargs
  event/opdl: fix segment fault when parse devargs
  event/sw: fix segment fault when parse devargs
  mempool/cnxk: fix segment fault when parse devargs
  raw/cnxk_gpio: fix segment fault when parse devargs

---
v2: according Ferruh's comments:
    fix all 'rte_kvargs_process()' bug instances.
    only judge value validation.

 app/pdump/main.c                             | 12 ++++++
 drivers/baseband/la12xx/bbdev_la12xx.c       |  3 ++
 drivers/bus/pci/pci_params.c                 |  2 +
 drivers/common/mlx5/mlx5_common.c            |  5 +++
 drivers/crypto/cnxk/cnxk_cryptodev_devargs.c |  3 ++
 drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c  |  2 +
 drivers/crypto/dpaa_sec/dpaa_sec.c           |  3 ++
 drivers/crypto/mvsam/rte_mrvl_pmd.c          |  6 +++
 drivers/crypto/scheduler/scheduler_pmd.c     | 21 +++++++++++
 drivers/dma/dpaa2/dpaa2_qdma.c               |  3 ++
 drivers/event/cnxk/cnxk_eventdev.c           |  6 +++
 drivers/event/cnxk/cnxk_eventdev.h           |  6 +++
 drivers/event/cnxk/cnxk_tim_evdev.c          |  6 +++
 drivers/event/dlb2/dlb2.c                    |  5 ++-
 drivers/event/dpaa/dpaa_eventdev.c           |  3 ++
 drivers/event/octeontx/ssovf_evdev.c         |  2 +
 drivers/event/opdl/opdl_evdev.c              |  9 +++++
 drivers/event/sw/sw_evdev.c                  | 12 ++++++
 drivers/mempool/cnxk/cnxk_mempool.c          |  3 ++
 drivers/net/af_xdp/rte_eth_af_xdp.c          | 12 ++++++
 drivers/net/ark/ark_ethdev.c                 |  3 ++
 drivers/net/cnxk/cnxk_ethdev_devargs.c       | 39 ++++++++++++++++++++
 drivers/net/cnxk/cnxk_ethdev_sec.c           | 12 ++++++
 drivers/net/cxgbe/cxgbe_main.c               |  3 ++
 drivers/net/dpaa2/dpaa2_ethdev.c             |  3 ++
 drivers/net/ena/ena_ethdev.c                 |  6 +++
 drivers/net/enic/enic_ethdev.c               |  6 +++
 drivers/net/fm10k/fm10k_ethdev.c             |  3 ++
 drivers/net/i40e/i40e_ethdev.c               | 15 ++++++++
 drivers/net/iavf/iavf_ethdev.c               |  6 +++
 drivers/net/ice/ice_dcf_ethdev.c             |  6 +++
 drivers/net/ice/ice_ethdev.c                 |  6 +++
 drivers/net/idpf/idpf_ethdev.c               |  6 +++
 drivers/net/ionic/ionic_dev_pci.c            |  3 ++
 drivers/net/mana/mana.c                      |  3 ++
 drivers/net/memif/rte_eth_memif.c            | 30 +++++++++++++++
 drivers/net/mlx4/mlx4.c                      |  3 ++
 drivers/net/mvneta/mvneta_ethdev.c           |  3 ++
 drivers/net/mvpp2/mrvl_ethdev.c              |  3 ++
 drivers/net/mvpp2/mrvl_qos.c                 |  6 ++-
 drivers/net/netvsc/hn_ethdev.c               |  3 ++
 drivers/net/octeontx/octeontx_ethdev.c       |  3 ++
 drivers/net/pcap/pcap_ethdev.c               | 18 ++++++++-
 drivers/net/pfe/pfe_ethdev.c                 |  3 ++
 drivers/net/qede/qede_ethdev.c               |  3 ++
 drivers/net/ring/rte_eth_ring.c              |  6 +++
 drivers/net/sfc/sfc.c                        |  3 ++
 drivers/net/sfc/sfc_ev.c                     |  3 ++
 drivers/net/sfc/sfc_kvargs.c                 |  6 +++
 drivers/raw/cnxk_gpio/cnxk_gpio.c            |  6 +++
 lib/ethdev/rte_class_eth.c                   |  6 +++
 51 files changed, 345 insertions(+), 4 deletions(-)
  

On Mon, 17 Apr 2023 17:37:46 +0100
Ferruh Yigit <ferruh.yigit@amd.com> wrote:

> From: Ferruh Yigit <ferruh.yigit@amd.com>
> To: fengchengwen <fengchengwen@huawei.com>, thomas@monjalon.net
> Cc: dev@dpdk.org
> Subject: Re: [PATCH v2 00/44] fix segment fault when parse args
> Date: Mon, 17 Apr 2023 17:37:46 +0100
> User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101
>  Thunderbird/102.10.0
> 
> On 4/15/2023 2:38 AM, fengchengwen wrote:
> > Hi Thomas, Ferruh,
> > 
> >   This patch-set get almost 30% ack by PMD's maintainer.
> >   Could it be applied? and squeeze the patch-set is okay.
> >   
> 
> Hi Chengwen,
> 
> The patch is trivial and safe on its own, so for me having enough ack or
> not is not what blocks the set.
> 
> As we discussed before, instead of adding NULL checks to the callbacks,
> it is better to handle this in the kvargs API level, that discussion is
> holding this patchset back.
> 
> According result of discussion we may prefer to not merge this patch at all.

Agree. Hitting so many places, and not sure that all of them are covered, is
an indicator it should be solved at higher level.