diff mbox series

crypto/qat: fix segmentation fault in QAT PMD

Message ID 1554720537-14959-1-git-send-email-bernard.iremonger@intel.com (mailing list archive)
State Rejected, archived
Delegated to: akhil goyal
Headers
Series crypto/qat: fix segmentation fault in QAT PMD |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK
ci/intel-Performance-Testing success Performance Testing PASS
ci/mellanox-Performance-Testing success Performance Testing PASS

Commit Message

Iremonger, Bernard April 8, 2019, 10:48 a.m. UTC 
  While running the IPsec unit test program the following
segmentation fault is occurring:

Thread 1 "test" received signal SIGSEGV, Segmentation fault.
0x0000000000beaece in qat_sym_build_request(in_op=0x0,
out_msg=0x100450580 "", op_cookie=0x101c6fd80, qat_dev_gen=QAT_GEN1)
at /root/dpdk_ipsec_master-1/drivers/crypto/qat/qat_sym.c:165
165  if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {

Fixes: c0f87eb5252b ("cryptodev: change burst API to be crypto op oriented")
Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
---
 drivers/crypto/qat/qat_sym.c | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Ananyev, Konstantin April 8, 2019, 12:09 p.m. UTC | #1 
Hi Bernard,

> 
> While running the IPsec unit test program the following
> segmentation fault is occurring:
> 
> Thread 1 "test" received signal SIGSEGV, Segmentation fault.
> 0x0000000000beaece in qat_sym_build_request(in_op=0x0,
> out_msg=0x100450580 "", op_cookie=0x101c6fd80, qat_dev_gen=QAT_GEN1)
> at /root/dpdk_ipsec_master-1/drivers/crypto/qat/qat_sym.c:165
> 165  if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
> 
> Fixes: c0f87eb5252b ("cryptodev: change burst API to be crypto op oriented")
> Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
> ---
>  drivers/crypto/qat/qat_sym.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/crypto/qat/qat_sym.c b/drivers/crypto/qat/qat_sym.c
> index 8801ca5..4a7d11e 100644
> --- a/drivers/crypto/qat/qat_sym.c
> +++ b/drivers/crypto/qat/qat_sym.c
> @@ -162,6 +162,12 @@ qat_sym_build_request(void *in_op, uint8_t *out_msg,
>  	struct qat_sym_op_cookie *cookie =
>  				(struct qat_sym_op_cookie *)op_cookie;
> 
> +	if (op == NULL) {
> +		QAT_DP_LOG(ERR, "QAT PMD only supports symmetric crypto "
> +				"operation requests, op (%p) is NULL", op);
> +		return -EINVAL;
> +	}
> +
>  	if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
>  		QAT_DP_LOG(ERR, "QAT PMD only supports symmetric crypto "
>  				"operation requests, op (%p) is not a "

This is crypto-dev enqueue data-path, if I am not mistaken.
I think in that case it is caller responsibility to make sure that ops[] contain valid crypto-ops
(as in majority of other data-path functions).
Suppose the main question here - why ipsec UT passes NULL as crypto-op here?
Konstantin
Iremonger, Bernard April 8, 2019, 12:31 p.m. UTC | #2 
Hi Konstantin,

<snip>
> Subject: RE: [PATCH] crypto/qat: fix segmentation fault in QAT PMD
> 
> Hi Bernard,
> 
> >
> > While running the IPsec unit test program the following segmentation
> > fault is occurring:
> >
> > Thread 1 "test" received signal SIGSEGV, Segmentation fault.
> > 0x0000000000beaece in qat_sym_build_request(in_op=0x0,
> > out_msg=0x100450580 "", op_cookie=0x101c6fd80,
> qat_dev_gen=QAT_GEN1)
> > at /root/dpdk_ipsec_master-1/drivers/crypto/qat/qat_sym.c:165
> > 165  if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
> >
> > Fixes: c0f87eb5252b ("cryptodev: change burst API to be crypto op
> > oriented")
> > Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
> > ---
> >  drivers/crypto/qat/qat_sym.c | 6 ++++++
> >  1 file changed, 6 insertions(+)
> >
> > diff --git a/drivers/crypto/qat/qat_sym.c
> > b/drivers/crypto/qat/qat_sym.c index 8801ca5..4a7d11e 100644
> > --- a/drivers/crypto/qat/qat_sym.c
> > +++ b/drivers/crypto/qat/qat_sym.c
> > @@ -162,6 +162,12 @@ qat_sym_build_request(void *in_op, uint8_t
> *out_msg,
> >  	struct qat_sym_op_cookie *cookie =
> >  				(struct qat_sym_op_cookie *)op_cookie;
> >
> > +	if (op == NULL) {
> > +		QAT_DP_LOG(ERR, "QAT PMD only supports symmetric crypto "
> > +				"operation requests, op (%p) is NULL", op);
> > +		return -EINVAL;
> > +	}
> > +
> >  	if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
> >  		QAT_DP_LOG(ERR, "QAT PMD only supports symmetric crypto "
> >  				"operation requests, op (%p) is not a "
> 
> This is crypto-dev enqueue data-path, if I am not mistaken.
> I think in that case it is caller responsibility to make sure that ops[] contain valid
> crypto-ops (as in majority of other data-path functions).
> Suppose the main question here - why ipsec UT passes NULL as crypto-op here?
> Konstantin

I will investigate further.

Regards,

Bernard.
Fiona Trahe April 8, 2019, 4:29 p.m. UTC | #3 
Hi Bernard, Konstantin,

> -----Original Message-----
> From: Ananyev, Konstantin
> Sent: Monday, April 8, 2019 1:10 PM
> To: Iremonger, Bernard <bernard.iremonger@intel.com>; dev@dpdk.org; Trahe, Fiona
> <fiona.trahe@intel.com>; akhil.goyal@nxp.com
> Subject: RE: [PATCH] crypto/qat: fix segmentation fault in QAT PMD
> 
> Hi Bernard,
> 
> >
> > While running the IPsec unit test program the following
> > segmentation fault is occurring:
> >
> > Thread 1 "test" received signal SIGSEGV, Segmentation fault.
> > 0x0000000000beaece in qat_sym_build_request(in_op=0x0,
> > out_msg=0x100450580 "", op_cookie=0x101c6fd80, qat_dev_gen=QAT_GEN1)
> > at /root/dpdk_ipsec_master-1/drivers/crypto/qat/qat_sym.c:165
> > 165  if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
> >
> > Fixes: c0f87eb5252b ("cryptodev: change burst API to be crypto op oriented")
> > Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
> > ---
> >  drivers/crypto/qat/qat_sym.c | 6 ++++++
> >  1 file changed, 6 insertions(+)
> >
> > diff --git a/drivers/crypto/qat/qat_sym.c b/drivers/crypto/qat/qat_sym.c
> > index 8801ca5..4a7d11e 100644
> > --- a/drivers/crypto/qat/qat_sym.c
> > +++ b/drivers/crypto/qat/qat_sym.c
> > @@ -162,6 +162,12 @@ qat_sym_build_request(void *in_op, uint8_t *out_msg,
> >  	struct qat_sym_op_cookie *cookie =
> >  				(struct qat_sym_op_cookie *)op_cookie;
> >
> > +	if (op == NULL) {
> > +		QAT_DP_LOG(ERR, "QAT PMD only supports symmetric crypto "
> > +				"operation requests, op (%p) is NULL", op);
> > +		return -EINVAL;
> > +	}
> > +
> >  	if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
> >  		QAT_DP_LOG(ERR, "QAT PMD only supports symmetric crypto "
> >  				"operation requests, op (%p) is not a "
> 
> This is crypto-dev enqueue data-path, if I am not mistaken.
> I think in that case it is caller responsibility to make sure that ops[] contain valid crypto-ops
> (as in majority of other data-path functions).
> Suppose the main question here - why ipsec UT passes NULL as crypto-op here?
> Konstantin
[Fiona] Agree with Konstantin - it's the data-path - we expect a valid op ptr.
Can the real issue be related to the recent addition of asymmetric QAT PMD?
Not all QAT PMDs support symmetric crypto now.
Is IPSec unit test finding a QAT asymm PMD and not checking it's capabilities 
or checking but not handling the result well and following a path that passes a NULL op to it?
Iremonger, Bernard April 10, 2019, 4:21 p.m. UTC | #4 
Hi Fiona,

<snip>

> > Subject: RE: [PATCH] crypto/qat: fix segmentation fault in QAT PMD
> >
> > Hi Bernard,
> >
> > >
> > > While running the IPsec unit test program the following segmentation
> > > fault is occurring:
> > >
> > > Thread 1 "test" received signal SIGSEGV, Segmentation fault.
> > > 0x0000000000beaece in qat_sym_build_request(in_op=0x0,
> > > out_msg=0x100450580 "", op_cookie=0x101c6fd80,
> qat_dev_gen=QAT_GEN1)
> > > at /root/dpdk_ipsec_master-1/drivers/crypto/qat/qat_sym.c:165
> > > 165  if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
> > >
> > > Fixes: c0f87eb5252b ("cryptodev: change burst API to be crypto op
> > > oriented")
> > > Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
> > > ---
> > >  drivers/crypto/qat/qat_sym.c | 6 ++++++
> > >  1 file changed, 6 insertions(+)
> > >
> > > diff --git a/drivers/crypto/qat/qat_sym.c
> > > b/drivers/crypto/qat/qat_sym.c index 8801ca5..4a7d11e 100644
> > > --- a/drivers/crypto/qat/qat_sym.c
> > > +++ b/drivers/crypto/qat/qat_sym.c
> > > @@ -162,6 +162,12 @@ qat_sym_build_request(void *in_op, uint8_t
> *out_msg,
> > >  	struct qat_sym_op_cookie *cookie =
> > >  				(struct qat_sym_op_cookie *)op_cookie;
> > >
> > > +	if (op == NULL) {
> > > +		QAT_DP_LOG(ERR, "QAT PMD only supports symmetric
> crypto "
> > > +				"operation requests, op (%p) is NULL", op);
> > > +		return -EINVAL;
> > > +	}
> > > +
> > >  	if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
> > >  		QAT_DP_LOG(ERR, "QAT PMD only supports symmetric
> crypto "
> > >  				"operation requests, op (%p) is not a "
> >
> > This is crypto-dev enqueue data-path, if I am not mistaken.
> > I think in that case it is caller responsibility to make sure that
> > ops[] contain valid crypto-ops (as in majority of other data-path functions).
> > Suppose the main question here - why ipsec UT passes NULL as crypto-op
> here?
> > Konstantin
> [Fiona] Agree with Konstantin - it's the data-path - we expect a valid op ptr.
> Can the real issue be related to the recent addition of asymmetric QAT PMD?
> Not all QAT PMDs support symmetric crypto now.
> Is IPSec unit test finding a QAT asymm PMD and not checking it's capabilities
> or checking but not handling the result well and following a path that passes a
> NULL op to it?

Self NAK, issue found in test_ipsec code.

Regards,

Bernard.
diff mbox series

Patch

diff --git a/drivers/crypto/qat/qat_sym.c b/drivers/crypto/qat/qat_sym.c
index 8801ca5..4a7d11e 100644
--- a/drivers/crypto/qat/qat_sym.c
+++ b/drivers/crypto/qat/qat_sym.c
@@ -162,6 +162,12 @@  qat_sym_build_request(void *in_op, uint8_t *out_msg,
 	struct qat_sym_op_cookie *cookie =
 				(struct qat_sym_op_cookie *)op_cookie;
 
+	if (op == NULL) {
+		QAT_DP_LOG(ERR, "QAT PMD only supports symmetric crypto "
+				"operation requests, op (%p) is NULL", op);
+		return -EINVAL;
+	}
+
 	if (unlikely(op->type != RTE_CRYPTO_OP_TYPE_SYMMETRIC)) {
 		QAT_DP_LOG(ERR, "QAT PMD only supports symmetric crypto "
 				"operation requests, op (%p) is not a "