DPDK patches and discussions
 help / color / mirror / Atom feed
* [dpdk-dev] [PATCH] app/testpmd: fix invalid memory access
@ 2021-10-12  7:36 skori
  2021-10-12  7:50 ` Li, Xiaoyun
  2021-10-12  8:33 ` [dpdk-dev] [PATCH v2 1/1] " skori
  0 siblings, 2 replies; 5+ messages in thread
From: skori @ 2021-10-12  7:36 UTC (permalink / raw)
  To: Xiaoyun Li; +Cc: dev, Sunil Kumar Kori, stable

From: Sunil Kumar Kori <skori@marvell.com>

During parsing of DSCP entries, memory is allocated and assgined
to *dscp_table. Later on, same memory is accessed using
*dscp_table[i++].

Due to higher precedence for array subscript, dscp_table[i++] will
be executed first which actually does not point to the same memory
which was allocated previously for DSCP table entries.

Cc: stable@dpdk.org

Fixes: e63b50162aa3 ("app/testpmd: clean metering and policing commands")

Signed-off-by: Sunil Kumar Kori <skori@marvell.com>
---
 app/test-pmd/cmdline_mtr.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/app/test-pmd/cmdline_mtr.c b/app/test-pmd/cmdline_mtr.c
index b5dcfdadcf..ad7ef6ad98 100644
--- a/app/test-pmd/cmdline_mtr.c
+++ b/app/test-pmd/cmdline_mtr.c
@@ -101,13 +101,13 @@ parse_dscp_table_entries(char *str, enum rte_color **dscp_table)
 	while (1) {
 		if (strcmp(token, "G") == 0 ||
 			strcmp(token, "g") == 0)
-			*dscp_table[i++] = RTE_COLOR_GREEN;
+			(*dscp_table)[i++] = RTE_COLOR_GREEN;
 		else if (strcmp(token, "Y") == 0 ||
 			strcmp(token, "y") == 0)
-			*dscp_table[i++] = RTE_COLOR_YELLOW;
+			(*dscp_table)[i++] = RTE_COLOR_YELLOW;
 		else if (strcmp(token, "R") == 0 ||
 			strcmp(token, "r") == 0)
-			*dscp_table[i++] = RTE_COLOR_RED;
+			(*dscp_table)[i++] = RTE_COLOR_RED;
 		else {
 			free(*dscp_table);
 			return -1;
-- 
2.25.1


^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2021-10-19 16:17 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-10-12  7:36 [dpdk-dev] [PATCH] app/testpmd: fix invalid memory access skori
2021-10-12  7:50 ` Li, Xiaoyun
2021-10-12  8:21   ` Sunil Kumar Kori
2021-10-12  8:33 ` [dpdk-dev] [PATCH v2 1/1] " skori
2021-10-19 16:11   ` Ferruh Yigit

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).