diff mbox series

[v2] app/pdump: check lcore is not the maximum core

Message ID 20220221101944.4216-1-reshma.pattan@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Headers
Series [v2] app/pdump: check lcore is not the maximum core |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK
ci/intel-Testing success Testing PASS
ci/github-robot: build success github build: passed
ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-broadcom-Functional fail Functional Testing issues
ci/iol-broadcom-Performance success Performance Testing PASS
ci/iol-intel-Functional success Functional Testing PASS
ci/iol-aarch64-unit-testing success Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/iol-x86_64-unit-testing success Testing PASS
ci/iol-aarch64-compile-testing success Testing PASS
ci/iol-x86_64-compile-testing success Testing PASS
ci/iol-abi-testing success Testing PASS

Commit Message

Pattan, Reshma Feb. 21, 2022, 10:19 a.m. UTC 
  Check lcore id value is not the maximum core supported.
Using lcore id without this check might cause
out of bound access inside the rte_eal_wait_lcore.

Coverity issue: 375841
Fixes: b2854d5317e8 ("app/pdump: support multi-core capture")
Cc: vipin.varghese@intel.com
Cc: stable@dpdk.org

Signed-off-by: Reshma Pattan <reshma.pattan@intel.com>
---
 app/pdump/main.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/app/pdump/main.c b/app/pdump/main.c
index 04a38e8911..7677a5f8f5 100644
--- a/app/pdump/main.c
+++ b/app/pdump/main.c
@@ -930,12 +930,15 @@  dump_packets(void)
 		return;
 	}
 
-	lcore_id = rte_get_next_lcore(lcore_id, 1, 0);
 
 	for (i = 0; i < num_tuples; i++) {
+		lcore_id = rte_get_next_lcore(lcore_id, 1, 0);
+		if (lcore_id == RTE_MAX_LCORE)
+			rte_exit(EXIT_FAILURE,
+				"Max core limit %u reached for packet capture", lcore_id);
+
 		rte_eal_remote_launch(dump_packets_core,
 				&pdump_t[i], lcore_id);
-		lcore_id = rte_get_next_lcore(lcore_id, 1, 0);
 
 		if (rte_eal_wait_lcore(lcore_id) < 0)
 			rte_exit(EXIT_FAILURE, "failed to wait\n");