[dpdk-dev] [PATCH v2] cryptodev: fix NULL pointer dereference

[De Lara Guarch, Pablo]

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Thomas Monjalon
> Sent: Monday, July 31, 2017 8:33 PM
> To: De Lara Guarch, Pablo <pablo.de.lara.guarch at intel.com>
> Cc: Gonzalez Monroy, Sergio <sergio.gonzalez.monroy at intel.com>;
> dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v2] cryptodev: fix NULL pointer dereference
> 
> 31/07/2017 11:18, Pablo de Lara:
> > When register a crypto driver, a cryptodev driver structure was being
> > allocated, using malloc.
> > Since this call may fail, it is safer to allocate this memory
> > statically in each PMD, so driver registration will never fail.
> >
> > Coverity issue: 158645
> >
> > Fixes: 7a364faef185 ("cryptodev: remove crypto device type
> > enumeration")
> >
> > Signed-off-by: Pablo de Lara <pablo.de.lara.guarch at intel.com>
> > ---
> >
> > Changes in v2:
> >
> > - Allocate statically the cryptodev driver structure,
> >   instead of using malloc, that can potentially fail.
> >
> >  drivers/crypto/aesni_gcm/aesni_gcm_pmd.c    |  5 ++++-
> >  drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c  |  6 +++++-
> >  drivers/crypto/armv8/rte_armv8_pmd.c        |  9 ++++++---
> >  drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c |  5 ++++-
> >  drivers/crypto/kasumi/rte_kasumi_pmd.c      |  5 ++++-
> >  drivers/crypto/null/null_crypto_pmd.c       |  5 ++++-
> >  drivers/crypto/openssl/rte_openssl_pmd.c    |  5 ++++-
> >  drivers/crypto/qat/rte_qat_cryptodev.c      |  7 +++++--
> >  drivers/crypto/scheduler/scheduler_pmd.c    |  5 ++++-
> >  drivers/crypto/snow3g/rte_snow3g_pmd.c      |  5 ++++-
> >  drivers/crypto/zuc/rte_zuc_pmd.c            |  5 ++++-
> >  lib/librte_cryptodev/rte_cryptodev.c        | 18 +++++------------
> >  lib/librte_cryptodev/rte_cryptodev.h        | 20 -------------------
> >  lib/librte_cryptodev/rte_cryptodev_pmd.h    | 30
> +++++++++++++++++++++++++++++
> >  14 files changed, 83 insertions(+), 47 deletions(-)
> 
> This is a big change for a small/unlikely issue.
> The main benefit of this patch is an allocation cleanup.
> I think it is better to wait 17.11 cycle to integrate it.

Makes sense, Thomas.

Thanks,
Pablo