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* [dpdk-dev] [PATCH] examples/performance-thread: fix out-of-bounds read
@ 2017-09-20  8:21 Slawomir Mrozowicz
  2017-10-11 13:56 ` Jastrzebski, MichalX K
  0 siblings, 1 reply; 12+ messages in thread
From: Slawomir Mrozowicz @ 2017-09-20  8:21 UTC (permalink / raw)
  To: john.mcnamara; +Cc: dev, Slawomir Mrozowicz, ian.betts, stable

Overrunning array per_lcore_this_sched->current_lthread->tls->data of
1024 8-byte elements at element index 1024 using index k.
Fixed by correct check k condition.

Coverity issue: 143463
Fixes: 116819b9ed0d ("examples/performance-thread: add lthread subsystem")
Cc: ian.betts@intel.com
Cc: stable@dpdk.org

Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
---
 examples/performance-thread/common/lthread_tls.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/examples/performance-thread/common/lthread_tls.c b/examples/performance-thread/common/lthread_tls.c
index 47505f2d4..4ae3c6c03 100644
--- a/examples/performance-thread/common/lthread_tls.c
+++ b/examples/performance-thread/common/lthread_tls.c
@@ -198,11 +198,12 @@ void _lthread_tls_destroy(struct lthread *lt)
 void
 *lthread_getspecific(unsigned int k)
 {
+	void *res = NULL;
 
-	if (k > LTHREAD_MAX_KEYS)
-		return NULL;
+	if (k < LTHREAD_MAX_KEYS)
+		res = THIS_LTHREAD->tls->data[k];
 
-	return THIS_LTHREAD->tls->data[k];
+	return res;
 }
 
 /*
-- 
2.11.0

^ permalink raw reply	[flat|nested] 12+ messages in thread
* [dpdk-dev] [PATCH] examples/performance-thread: fix out-of-bounds read
@ 2017-09-20  8:20 Slawomir Mrozowicz
  2017-10-11 13:56 ` Jastrzebski, MichalX K
  0 siblings, 1 reply; 12+ messages in thread
From: Slawomir Mrozowicz @ 2017-09-20  8:20 UTC (permalink / raw)
  To: john.mcnamara; +Cc: dev, Slawomir Mrozowicz, ian.betts, stable

Overrunning array per_lcore_this_sched->current_lthread->tls->data of
1024 8-byte elements at element index 1024 using index k.
Fixed by correct check k condition.

Coverity issue: 143462
Fixes: 116819b9ed0d ("examples/performance-thread: add lthread subsystem")
Cc: ian.betts@intel.com
Cc: stable@dpdk.org

Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
---
 examples/performance-thread/common/lthread_tls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/performance-thread/common/lthread_tls.c b/examples/performance-thread/common/lthread_tls.c
index 47505f2d4..58a9a8878 100644
--- a/examples/performance-thread/common/lthread_tls.c
+++ b/examples/performance-thread/common/lthread_tls.c
@@ -212,7 +212,7 @@ void
  */
 int lthread_setspecific(unsigned int k, const void *data)
 {
-	if (k > LTHREAD_MAX_KEYS)
+	if (k >= LTHREAD_MAX_KEYS)
 		return POSIX_ERRNO(EINVAL);
 
 	int n = THIS_LTHREAD->tls->nb_keys_inuse;
-- 
2.11.0

^ permalink raw reply	[flat|nested] 12+ messages in thread
* [dpdk-dev] [PATCH] examples/performance-thread: fix out-of-bounds read
@ 2017-09-20  8:05 Slawomir Mrozowicz
  2017-10-11 13:55 ` Jastrzebski, MichalX K
  0 siblings, 1 reply; 12+ messages in thread
From: Slawomir Mrozowicz @ 2017-09-20  8:05 UTC (permalink / raw)
  To: john.mcnamara; +Cc: dev, Slawomir Mrozowicz, ian.betts, stable

Overrunning array schedcore of 128 8-byte elements at element index 128
using index lcoreid.
Fixed by correct check index lcoreid condition.

Coverity issue: 143461
Fixes: 116819b9ed0d ("examples/performance-thread: add lthread subsystem")
Cc: ian.betts@intel.com
Cc: stable@dpdk.org

Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
---
 examples/performance-thread/common/lthread_sched.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/examples/performance-thread/common/lthread_sched.c b/examples/performance-thread/common/lthread_sched.c
index 98291478e..138a87d32 100644
--- a/examples/performance-thread/common/lthread_sched.c
+++ b/examples/performance-thread/common/lthread_sched.c
@@ -578,10 +578,9 @@ int lthread_set_affinity(unsigned lcoreid)
 	struct lthread *lt = THIS_LTHREAD;
 	struct lthread_sched *dest_sched;
 
-	if (unlikely(lcoreid > LTHREAD_MAX_LCORES))
+	if (unlikely(lcoreid >= LTHREAD_MAX_LCORES))
 		return POSIX_ERRNO(EINVAL);
 
-
 	DIAG_EVENT(lt, LT_DIAG_LTHREAD_AFFINITY, lcoreid, 0);
 
 	dest_sched = schedcore[lcoreid];
-- 
2.11.0

^ permalink raw reply	[flat|nested] 12+ messages in thread
* [dpdk-dev] [PATCH] examples/performance-thread: fix out-of-bounds read
@ 2017-09-20  7:47 Slawomir Mrozowicz
  2017-10-02 14:07 ` Jastrzebski, MichalX K
  0 siblings, 1 reply; 12+ messages in thread
From: Slawomir Mrozowicz @ 2017-09-20  7:47 UTC (permalink / raw)
  To: john.mcnamara; +Cc: dev, Slawomir Mrozowicz, ian.betts, stable

Overrunning array schedcore of 128 8-byte elements at element index 128
using index lcore_id.
Fixed by correct check index lcoreid condition and
change type of lcoreid to unsigned.

Coverity issue: 143459
Fixes: 116819b9ed0d ("examples/performance-thread: add lthread subsystem")
Cc: ian.betts@intel.com
Cc: stable@dpdk.org

Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
---
 examples/performance-thread/common/lthread.h       |  2 +-
 examples/performance-thread/common/lthread_sched.c | 11 +++++++----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/examples/performance-thread/common/lthread.h b/examples/performance-thread/common/lthread.h
index 5c2c1a5f0..0cde5919b 100644
--- a/examples/performance-thread/common/lthread.h
+++ b/examples/performance-thread/common/lthread.h
@@ -87,7 +87,7 @@ int _lthread_desched_sleep(struct lthread *lt);
 
 void _lthread_free(struct lthread *lt);
 
-struct lthread_sched *_lthread_sched_get(int lcore_id);
+struct lthread_sched *_lthread_sched_get(unsigned int lcore_id);
 
 struct lthread_stack *_stack_alloc(void);
 
diff --git a/examples/performance-thread/common/lthread_sched.c b/examples/performance-thread/common/lthread_sched.c
index 98291478e..3484387b4 100644
--- a/examples/performance-thread/common/lthread_sched.c
+++ b/examples/performance-thread/common/lthread_sched.c
@@ -562,11 +562,14 @@ void lthread_run(void)
  * Return the scheduler for this lcore
  *
  */
-struct lthread_sched *_lthread_sched_get(int lcore_id)
+struct lthread_sched *_lthread_sched_get(unsigned int lcore_id)
 {
-	if (lcore_id > LTHREAD_MAX_LCORES)
-		return NULL;
-	return schedcore[lcore_id];
+	struct lthread_sched *res = NULL;
+
+	if (lcore_id < LTHREAD_MAX_LCORES)
+		res = schedcore[lcore_id];
+
+	return res;
 }
 
 /*
-- 
2.11.0

^ permalink raw reply	[flat|nested] 12+ messages in thread
end of thread, other threads:[~2017-10-13 23:23 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-09-20  8:21 [dpdk-dev] [PATCH] examples/performance-thread: fix out-of-bounds read Slawomir Mrozowicz
2017-10-11 13:56 ` Jastrzebski, MichalX K
2017-10-13 23:23   ` Thomas Monjalon
  -- strict thread matches above, loose matches on Subject: below --
2017-09-20  8:20 Slawomir Mrozowicz
2017-10-11 13:56 ` Jastrzebski, MichalX K
2017-09-20  8:05 Slawomir Mrozowicz
2017-10-11 13:55 ` Jastrzebski, MichalX K
2017-10-13 23:19   ` Thomas Monjalon
2017-09-20  7:47 Slawomir Mrozowicz
2017-10-02 14:07 ` Jastrzebski, MichalX K
2017-10-11 13:55   ` Jastrzebski, MichalX K
2017-10-13 23:14     ` Thomas Monjalon

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