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From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: git@vger.kernel.org
Cc: "Junio C Hamano" <gitster@pobox.com>,
	"Phillip Wood" <phillip.wood123@gmail.com>,
	"Jeff King" <peff@peff.net>,
	"Derrick Stolee" <derrickstolee@github.com>,
	"Elijah Newren" <newren@gmail.com>,
	"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Subject: [PATCH 07/17] unpack-file: fix ancient leak in create_temp_file()
Date: Thu,  3 Nov 2022 18:06:06 +0100	[thread overview]
Message-ID: <patch-07.17-38e7c863dd8-20221103T164632Z-avarab@gmail.com> (raw)
In-Reply-To: <cover-00.17-00000000000-20221103T164632Z-avarab@gmail.com>

Fix a leak that's been with us since 3407bb4940c (Add "unpack-file"
helper that unpacks a sha1 blob into a tmpfile., 2005-04-18). See
00c8fd493af (cat-file: use streaming API to print blobs, 2012-03-07)
for prior art which shows the same API pattern, i.e. free()-ing the
result of read_object_file() after it's used.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 builtin/unpack-file.c        | 1 +
 t/t6060-merge-index.sh       | 2 ++
 t/t6401-merge-criss-cross.sh | 2 ++
 t/t6406-merge-attr.sh        | 1 +
 t/t6407-merge-binary.sh      | 1 +
 t/t7605-merge-resolve.sh     | 1 +
 6 files changed, 8 insertions(+)

diff --git a/builtin/unpack-file.c b/builtin/unpack-file.c
index 9e8119dd354..88de32b7d7e 100644
--- a/builtin/unpack-file.c
+++ b/builtin/unpack-file.c
@@ -19,6 +19,7 @@ static char *create_temp_file(struct object_id *oid)
 	if (write_in_full(fd, buf, size) < 0)
 		die_errno("unable to write temp-file");
 	close(fd);
+	free(buf);
 	return path;
 }
 
diff --git a/t/t6060-merge-index.sh b/t/t6060-merge-index.sh
index ed449abe552..1a8b64cce18 100755
--- a/t/t6060-merge-index.sh
+++ b/t/t6060-merge-index.sh
@@ -1,6 +1,8 @@
 #!/bin/sh
 
 test_description='basic git merge-index / git-merge-one-file tests'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'setup diverging branches' '
diff --git a/t/t6401-merge-criss-cross.sh b/t/t6401-merge-criss-cross.sh
index 9d5e992878f..1962310408b 100755
--- a/t/t6401-merge-criss-cross.sh
+++ b/t/t6401-merge-criss-cross.sh
@@ -8,6 +8,8 @@
 
 
 test_description='Test criss-cross merge'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'prepare repository' '
diff --git a/t/t6406-merge-attr.sh b/t/t6406-merge-attr.sh
index 8650a88c40a..5e4e4dd6d9e 100755
--- a/t/t6406-merge-attr.sh
+++ b/t/t6406-merge-attr.sh
@@ -8,6 +8,7 @@ test_description='per path merge controlled by merge attribute'
 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 setup '
diff --git a/t/t6407-merge-binary.sh b/t/t6407-merge-binary.sh
index e8a28717cec..0753fc95f45 100755
--- a/t/t6407-merge-binary.sh
+++ b/t/t6407-merge-binary.sh
@@ -5,6 +5,7 @@ test_description='ask merge-recursive to merge binary files'
 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 setup '
diff --git a/t/t7605-merge-resolve.sh b/t/t7605-merge-resolve.sh
index 5d56c385464..62d935d31c2 100755
--- a/t/t7605-merge-resolve.sh
+++ b/t/t7605-merge-resolve.sh
@@ -4,6 +4,7 @@ test_description='git merge
 
 Testing the resolve strategy.'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'setup' '
-- 
2.38.0.1451.g86b35f4140a


  parent reply	other threads:[~2022-11-03 17:07 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-03 17:05 [PATCH 00/17] leak fixes: use existing constructors & other trivia Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 01/17] tests: mark tests as passing with SANITIZE=leak Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 02/17] {reset,merge}: call discard_index() before returning Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 03/17] commit: discard partial cache before (re-)reading it Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 04/17] read-cache.c: clear and free "sparse_checkout_patterns" Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 05/17] dir.c: free "ident" and "exclude_per_dir" in "struct untracked_cache" Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 06/17] built-ins & libs & helpers: add/move destructors, fix leaks Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` Ævar Arnfjörð Bjarmason [this message]
2022-11-03 17:06 ` [PATCH 08/17] revision API: call graph_clear() in release_revisions() Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 09/17] ls-files: fix a --with-tree memory leak Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 10/17] sequencer.c: fix "opts->strategy" leak in read_strategy_opts() Ævar Arnfjörð Bjarmason
2022-11-04 14:50   ` Phillip Wood
2022-11-04 21:44     ` Taylor Blau
2022-11-05 12:43       ` Ævar Arnfjörð Bjarmason
2022-11-08 15:00     ` Phillip Wood
2022-11-08 15:26       ` Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 11/17] connected.c: free the "struct packed_git" Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 12/17] sequencer.c: fix a pick_commits() leak Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 13/17] rebase: don't leak on "--abort" Ævar Arnfjörð Bjarmason
2022-11-04 14:42   ` Phillip Wood
2022-11-05 12:01     ` Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 14/17] sequencer.c: fix sequencer_continue() leak Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 15/17] cherry-pick: free "struct replay_opts" members Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 16/17] revert: fix parse_options_concat() leak Ævar Arnfjörð Bjarmason
2022-11-03 17:06 ` [PATCH 17/17] built-ins: use free() not UNLEAK() if trivial, rm dead code Ævar Arnfjörð Bjarmason
2022-11-04 15:20 ` [PATCH 00/17] leak fixes: use existing constructors & other trivia Phillip Wood
2022-11-05 12:46   ` Ævar Arnfjörð Bjarmason
2022-11-07  9:46     ` Phillip Wood
2022-11-08 18:17 ` [PATCH v2 00/15] " Ævar Arnfjörð Bjarmason
2022-11-08 18:17   ` [PATCH v2 01/15] tests: mark tests as passing with SANITIZE=leak Ævar Arnfjörð Bjarmason
2022-11-08 18:17   ` [PATCH v2 02/15] {reset,merge}: call discard_index() before returning Ævar Arnfjörð Bjarmason
2022-11-08 18:17   ` [PATCH v2 03/15] commit: discard partial cache before (re-)reading it Ævar Arnfjörð Bjarmason
2022-11-08 18:17   ` [PATCH v2 04/15] read-cache.c: clear and free "sparse_checkout_patterns" Ævar Arnfjörð Bjarmason
2022-11-08 18:17   ` [PATCH v2 05/15] dir.c: free "ident" and "exclude_per_dir" in "struct untracked_cache" Ævar Arnfjörð Bjarmason
2022-11-08 18:17   ` [PATCH v2 06/15] built-ins & libs & helpers: add/move destructors, fix leaks Ævar Arnfjörð Bjarmason
2022-11-08 18:17   ` [PATCH v2 07/15] unpack-file: fix ancient leak in create_temp_file() Ævar Arnfjörð Bjarmason
2022-11-08 18:17   ` [PATCH v2 08/15] revision API: call graph_clear() in release_revisions() Ævar Arnfjörð Bjarmason
2022-11-08 18:17   ` [PATCH v2 09/15] ls-files: fix a --with-tree memory leak Ævar Arnfjörð Bjarmason
2022-11-08 18:17   ` [PATCH v2 10/15] sequencer.c: fix "opts->strategy" leak in read_strategy_opts() Ævar Arnfjörð Bjarmason
2022-11-08 18:17   ` [PATCH v2 11/15] connected.c: free the "struct packed_git" Ævar Arnfjörð Bjarmason
2022-11-08 18:17   ` [PATCH v2 12/15] rebase: don't leak on "--abort" Ævar Arnfjörð Bjarmason
2022-11-08 18:17   ` [PATCH v2 13/15] cherry-pick: free "struct replay_opts" members Ævar Arnfjörð Bjarmason
2022-11-08 18:17   ` [PATCH v2 14/15] revert: fix parse_options_concat() leak Ævar Arnfjörð Bjarmason
2022-11-08 18:17   ` [PATCH v2 15/15] built-ins: use free() not UNLEAK() if trivial, rm dead code Ævar Arnfjörð Bjarmason
2022-11-08 20:54   ` [PATCH v2 00/15] leak fixes: use existing constructors & other trivia Taylor Blau

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