From: Vincent Stehlé <vincent.stehle@arm.com>
Date: Fri, 4 Apr 2025 12:53:58 +0000 (+0200)
Subject: cmd: optee: fix hello subcommand argument check
X-Git-Tag: v2025.07-rc1~72
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c4b273e441327f74449b3035d61ea92a077c1baa;p=pandora-u-boot.git

cmd: optee: fix hello subcommand argument check

When the `optee hello' subcommand is called, the do_optee_hello_world_ta()
function passes a NULL pointer to the strcmp() function while verifying its
input argument, which results in the following crash:

  => optee hello
  "Synchronous Abort" handler, esr 0x96000010, far 0x0

Fix this by verifying the number of input arguments instead.

Fixes: e3cf80fbe02d ("cmd: Add support for optee commands")
Signed-off-by: Vincent Stehlé <vincent.stehle@arm.com>
Cc: Jens Wiklander <jens.wiklander@linaro.org>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Cc: Tom Rini <trini@konsulko.com>
Cc: Jerome Forissier <jerome.forissier@linaro.org>
Cc: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
---

diff --git a/cmd/optee.c b/cmd/optee.c
index d0d37293986..e3aae5e9f9b 100644
--- a/cmd/optee.c
+++ b/cmd/optee.c
@@ -53,7 +53,7 @@ static int do_optee_hello_world_ta(struct cmd_tbl *cmdtp, int flag, int argc,
 {
 	int ret, value = 0;
 
-	if (strcmp(argv[1], NULL))
+	if (argc > 1)
 		value = hextoul(argv[1], NULL);
 
 	ret = hello_world_ta(value);