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STALE1817d

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[PATCH v2 3/4] SANITIZE tests: fix memory leaks in t5701*, add to whitelist

From: Ævar Arnfjörð Bjarmason <hidden>
Date: 2021-07-14 17:24:08
Subsystem: the rest · Maintainer: Linus Torvalds

Fix a memory leak in a2ba162cda (object-info: support for retrieving
object info, 2021-04-20) which appears to have been based on a
misunderstanding of how the pkt-line.c API works, there is no need to
strdup() input to, it's just a printf()-like format function.

This fixes a potentially large memory leak, since the number of OID
lines the "object-info" call can be arbitrarily large (or a small one
if the request is small).

Signed-off-by: Ævar Arnfjörð Bjarmason <redacted>
---
 protocol-caps.c      | 5 +++--
 t/t5701-git-serve.sh | 1 +
 2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/protocol-caps.c b/protocol-caps.c
index 13a9e63a04..901b6795e4 100644
--- a/protocol-caps.c
+++ b/protocol-caps.c
@@ -69,9 +69,10 @@ static void send_info(struct repository *r, struct packet_writer *writer,
 			}
 		}
 
-		packet_writer_write(writer, "%s",
-				    strbuf_detach(&send_buffer, NULL));
+		packet_writer_write(writer, "%s", send_buffer.buf);
+		strbuf_reset(&send_buffer);
 	}
+	strbuf_release(&send_buffer);
 }
 
 int cap_object_info(struct repository *r, struct strvec *keys,
diff --git a/t/t5701-git-serve.sh b/t/t5701-git-serve.sh
index d58efb0aa9..e2f4832adf 100755
--- a/t/t5701-git-serve.sh
+++ b/t/t5701-git-serve.sh
@@ -5,6 +5,7 @@ test_description='test protocol v2 server commands'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+GIT_TEST_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'test capability advertisement' '
-- 
2.32.0.853.g5a570c9bf9
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