[dpdk-dev] [PATCH] examples/performance-thread: fix out-of-bounds read

[Slawomir Mrozowicz]

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 at intel.com
Cc: stable at dpdk.org

Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz at 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