Merge pull request #21964 from jiangtaoli2016/fix_alts_env_check

add memory boundary check in check_gcp_environment.cc
5 years ago · 8c60c084ef
parent 6e74e80619 655a49384c
commit 8c60c084ef
1 changed files with 1 additions and 1 deletions
--- a/src/core/lib/security/credentials/alts/check_gcp_environment.cc
+++ b/src/core/lib/security/credentials/alts/check_gcp_environment.cc
@ -30,7 +30,7 @@
 const size_t kBiosDataBufferSize = 256;

 static char* trim(const char* src) {
-  if (src == nullptr) {
+  if (src == nullptr || *src == '\0') {
    return nullptr;
  }
  char* des = nullptr;