diff --git a/t/t1300-config.sh b/t/t1300-config.sh
index 9ff46f3b04..f8031afaaf 100755
--- a/t/t1300-config.sh
+++ b/t/t1300-config.sh
@@ -8,6 +8,7 @@ test_description='Test git config in different settings'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'clear default config' '
diff --git a/t/t1303-wacky-config.sh b/t/t1303-wacky-config.sh
index 0000e664e7..0506f3d6bb 100755
--- a/t/t1303-wacky-config.sh
+++ b/t/t1303-wacky-config.sh
@@ -1,6 +1,8 @@
 #!/bin/sh
 
 test_description='Test wacky input to git config'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # Leaving off the newline is intentional!
diff --git a/t/t1307-config-blob.sh b/t/t1307-config-blob.sh
index 930dce06f0..0a7099d6f5 100755
--- a/t/t1307-config-blob.sh
+++ b/t/t1307-config-blob.sh
@@ -1,6 +1,8 @@
 #!/bin/sh
 
 test_description='support for reading config from a blob'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'create config blob' '
diff --git a/t/t1308-config-set.sh b/t/t1308-config-set.sh
index 88b119a0a3..b38e158d3b 100755
--- a/t/t1308-config-set.sh
+++ b/t/t1308-config-set.sh
@@ -2,6 +2,7 @@
 
 test_description='Test git config-set API in different settings'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # 'check_config get_* section.key value' verifies that the entry for
diff --git a/t/t1309-early-config.sh b/t/t1309-early-config.sh
index b4a9158307..537435b90a 100755
--- a/t/t1309-early-config.sh
+++ b/t/t1309-early-config.sh
@@ -2,6 +2,7 @@
 
 test_description='Test read_early_config()'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'read early config' '
diff --git a/t/t1310-config-default.sh b/t/t1310-config-default.sh
index 6049d91708..09b10c144b 100755
--- a/t/t1310-config-default.sh
+++ b/t/t1310-config-default.sh
@@ -2,6 +2,7 @@
 
 test_description='Test git config in different settings (with --default)'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'uses --default when entry missing' '
diff --git a/t/t2404-worktree-config.sh b/t/t2404-worktree-config.sh
index 9536d10919..842937bfb9 100755
--- a/t/t2404-worktree-config.sh
+++ b/t/t2404-worktree-config.sh
@@ -2,6 +2,7 @@
 
 test_description="config file in multi worktree"
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'setup' '