diff mbox series

[v2] app/testpmd: fix dereference before null check

Message ID 20220118105309.1362804-1-sean.morrissey@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Ferruh Yigit
Headers
Series [v2] app/testpmd: fix dereference before null check |

Checks

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

Commit Message

Sean Morrissey Jan. 18, 2022, 10:53 a.m. UTC 
  Assign 'left' variable only after null check on 'size'
as function returns if 'size' is null.

Coverity issue: 374381
Fixes: 169a9fed1f4 ("app/testpmd: fix hex string parser support for flow API")
Cc: stable@dpdk.org
Cc: wei.zhao1@intel.com

Signed-off-by: Sean Morrissey <sean.morrissey@intel.com>

Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 app/test-pmd/cmdline_flow.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Comments

Ferruh Yigit Jan. 18, 2022, 1:28 p.m. UTC | #1 
On 1/18/2022 10:53 AM, Sean Morrissey wrote:
> Assign 'left' variable only after null check on 'size'
> as function returns if 'size' is null.
> 
> Coverity issue: 374381
> Fixes: 169a9fed1f4 ("app/testpmd: fix hex string parser support for flow API")
> Cc: stable@dpdk.org
> Cc: wei.zhao1@intel.com
> 
> Signed-off-by: Sean Morrissey <sean.morrissey@intel.com>
> Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

Applied to dpdk-next-net/main, thanks.
diff mbox series

Patch

diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
index 5c2bba48ad..bbaf18d76e 100644
--- a/app/test-pmd/cmdline_flow.c
+++ b/app/test-pmd/cmdline_flow.c
@@ -7702,8 +7702,8 @@  parse_string(struct context *ctx, const struct token *token,
 static int
 parse_hex_string(const char *src, uint8_t *dst, uint32_t *size)
 {
-	uint32_t left = *size;
 	const uint8_t *head = dst;
+	uint32_t left;
 
 	/* Check input parameters */
 	if ((src == NULL) ||
@@ -7712,6 +7712,8 @@  parse_hex_string(const char *src, uint8_t *dst, uint32_t *size)
 		(*size == 0))
 		return -1;
 
+	left = *size;
+
 	/* Convert chars to bytes */
 	while (left) {
 		char tmp[3], *end = tmp;