mirror/mbedtls
1
0
Fork 0
mirror of https://github.com/Mbed-TLS/mbedtls.git synced 2025-01-30 15:32:58 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

library: psa_crypto: Explicitly initialize shared_secret

Browse Source 
When building with -Og (specifically Zephyr with
CONFIG_DEBUG_OPTIMIZATIONS=y) one observes the following warning:

'shared_secret' may be used uninitialized [-Werror=maybe-uninitialized]

Fix this by zero initializing 'shared_secret' similar to the issue
addressed in commit 2fab5c960 ("Work around for GCC bug").

Signed-off-by: Moritz Fischer <moritzf@google.com>
This commit is contained in:
Moritz Fischer 2024-03-02 00:55:06 +00:00
parent e33b349c90
commit 967f8cde84
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
library/psa_crypto.c
View File

@ -7046,7 +7046,7 @@ static psa_status_t psa_key_agreement_internal(psa_key_derivation_operation_t *o
size_t peer_key_length)
{
psa_status_t status;
uint8_t shared_secret[PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE];
uint8_t shared_secret[PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE] = { 0 };
size_t shared_secret_length = 0;
psa_algorithm_t ka_alg = PSA_ALG_KEY_AGREEMENT_GET_BASE(operation->alg);