[dpdk-dev] [PATCH v2] cryptodev: fix NULL pointer dereference
Thomas Monjalon
thomas at monjalon.net
Mon Jul 31 21:33:15 CEST 2017
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.
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