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[PATCH 11/23] builtin/stash: fix various trivial memory leaks

From
Patrick Steinhardt <ps@pks.im>
Date
Jul 26, 2024, 12:16 UTC
Message-ID
<a4b3ca49c9724b79ca695d0db8e45be663a46434.1721995576.git.ps@pks.im>
In-Reply-To
<cover.1721995576.git.ps@pks.im>
There are multiple trivial memory leaks in git-stash(1). Fix those.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
---
 builtin/stash.c                    | 18 ++++++++++++++++--
 t/t2501-cwd-empty.sh               |  1 +
 t/t3903-stash.sh                   |  1 +
 t/t3904-stash-patch.sh             |  2 ++
 t/t3905-stash-include-untracked.sh |  1 +
 t/t7064-wtstatus-pv2.sh            |  1 +
 6 files changed, 22 insertions(+), 2 deletions(-)
diff --git a/builtin/stash.c b/builtin/stash.c
index 46b981c4dd..7f2f989b69 100644
--- a/builtin/stash.c
+++ b/builtin/stash.c
@@ -1521,6 +1521,7 @@ static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int q
 	struct strbuf patch = STRBUF_INIT;
 	struct strbuf stash_msg_buf = STRBUF_INIT;
 	struct strbuf untracked_files = STRBUF_INIT;
+	struct strbuf out = STRBUF_INIT;
 
 	if (patch_mode && keep_index == -1)
 		keep_index = 1;
@@ -1626,7 +1627,6 @@ static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int q
 			struct child_process cp_add = CHILD_PROCESS_INIT;
 			struct child_process cp_diff = CHILD_PROCESS_INIT;
 			struct child_process cp_apply = CHILD_PROCESS_INIT;
-			struct strbuf out = STRBUF_INIT;
 
 			cp_add.git_cmd = 1;
 			strvec_push(&cp_add.args, "add");
@@ -1718,6 +1718,7 @@ static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int q
 
 done:
 	strbuf_release(&patch);
+	strbuf_release(&out);
 	free_stash_info(&info);
 	strbuf_release(&stash_msg_buf);
 	strbuf_release(&untracked_files);
@@ -1869,6 +1870,8 @@ int cmd_stash(int argc, const char **argv, const char *prefix)
 		OPT_SUBCOMMAND_F("save", &fn, save_stash, PARSE_OPT_NOCOMPLETE),
 		OPT_END()
 	};
+	const char **args_copy;
+	int ret;
 
 	git_config(git_stash_config, NULL);
 
@@ -1892,5 +1895,16 @@ int cmd_stash(int argc, const char **argv, const char *prefix)
 	/* Assume 'stash push' */
 	strvec_push(&args, "push");
 	strvec_pushv(&args, argv);
-	return !!push_stash(args.nr, args.v, prefix, 1);
+
+	/*
+	 * `push_stash()` ends up modifying the array, which causes memory
+	 * leaks if we didn't copy the array here.
+	 */
+	DUP_ARRAY(args_copy, args.v, args.nr);
+
+	ret = !!push_stash(args.nr, args_copy, prefix, 1);
+
+	strvec_clear(&args);
+	free(args_copy);
+	return ret;
 }
diff --git a/t/t2501-cwd-empty.sh b/t/t2501-cwd-empty.sh
index f6d8d7d03d..8af4e8cfe3 100755
--- a/t/t2501-cwd-empty.sh
+++ b/t/t2501-cwd-empty.sh
@@ -2,6 +2,7 @@
 
 test_description='Test handling of the current working directory becoming empty'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success setup '
diff --git a/t/t3903-stash.sh b/t/t3903-stash.sh
index a7f71f8126..e4c0937f61 100755
--- a/t/t3903-stash.sh
+++ b/t/t3903-stash.sh
@@ -8,6 +8,7 @@ test_description='Test git stash'
 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/lib-unique-files.sh
 
diff --git a/t/t3904-stash-patch.sh b/t/t3904-stash-patch.sh
index 368fc2a6cc..aa5019fd6c 100755
--- a/t/t3904-stash-patch.sh
+++ b/t/t3904-stash-patch.sh
@@ -1,6 +1,8 @@
 #!/bin/sh
 
 test_description='stash -p'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./lib-patch-mode.sh
 
 test_expect_success 'setup' '
diff --git a/t/t3905-stash-include-untracked.sh b/t/t3905-stash-include-untracked.sh
index 1289ae3e07..a1733f45c3 100755
--- a/t/t3905-stash-include-untracked.sh
+++ b/t/t3905-stash-include-untracked.sh
@@ -5,6 +5,7 @@
 
 test_description='Test git stash --include-untracked'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 test_expect_success 'stash save --include-untracked some dirty working directory' '
diff --git a/t/t7064-wtstatus-pv2.sh b/t/t7064-wtstatus-pv2.sh
index 11884d2fc3..06c1301222 100755
--- a/t/t7064-wtstatus-pv2.sh
+++ b/t/t7064-wtstatus-pv2.sh
@@ -4,6 +4,7 @@ test_description='git status --porcelain=v2
 
 This test exercises porcelain V2 output for git status.'
 
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 
-- 
2.46.0.rc1.dirty
Previous: Patrick SteinhardtNext: Taylor Blau
Message 27 of 72 in “Memory leak fixes (pt.3)”
  1. 00/23 Memory leak fixes (pt.3)Patrick Steinhardt, Jul 26, 2024
  2. 01/23 builtin/replay: plug leaking `advance_name` variablePatrick Steinhardt, Jul 26, 2024
  3. Taylor BlauJul 31, 2024
  4. 02/23 builtin/log: fix leaking branch name when creating cover lettersPatrick Steinhardt, Jul 26, 2024
  5. Karthik NayakJul 30, 2024
  6. Taylor BlauJul 31, 2024
  7. 03/23 builtin/describe: fix memory leak with `--contains=`Patrick Steinhardt, Jul 26, 2024
  8. Karthik NayakJul 30, 2024
  9. Junio C HamanoJul 30, 2024
  10. Patrick SteinhardtJul 31, 2024
  11. Junio C HamanoJul 31, 2024
  12. Taylor BlauJul 31, 2024
  13. 04/23 builtin/describe: fix leaking array when running diff-indexPatrick Steinhardt, Jul 26, 2024
  14. Karthik NayakJul 30, 2024
  15. 05/23 builtin/describe: fix trivial memory leak when describing blobPatrick Steinhardt, Jul 26, 2024
  16. 06/23 builtin/name-rev: fix various trivial memory leaksPatrick Steinhardt, Jul 26, 2024
  17. Junio C HamanoJul 30, 2024
  18. 07/23 builtin/submodule--helper: fix various trivial memory leaksPatrick Steinhardt, Jul 26, 2024
  19. Rubén JustoJul 31, 2024
  20. Patrick SteinhardtAug 1, 2024
  21. 08/23 builtin/ls-remote: fix leaking `pattern` stringsPatrick Steinhardt, Jul 26, 2024
  22. Taylor BlauJul 31, 2024
  23. Patrick SteinhardtAug 1, 2024
  24. 09/23 builtin/remote: fix leaking strings in `branch_list`Patrick Steinhardt, Jul 26, 2024
  25. Taylor BlauJul 31, 2024
  26. 10/23 builtin/remote: fix various trivial memory leaksPatrick Steinhardt, Jul 26, 2024
  27. 11/23 builtin/stash: fix various trivial memory leaksPatrick Steinhardt, Jul 26, 2024
  28. Taylor BlauJul 31, 2024
  29. 12/23 builtin/rev-parse: fix memory leak with `--parseopt`Patrick Steinhardt, Jul 26, 2024
  30. Karthik NayakJul 30, 2024
  31. 13/23 builtin/show-branch: fix several memory leaksPatrick Steinhardt, Jul 26, 2024
  32. 14/23 builtin/credential-store: fix leaking credentialPatrick Steinhardt, Jul 26, 2024
  33. 15/23 builtin/rerere: fix various trivial memory leaksPatrick Steinhardt, Jul 26, 2024
  34. 16/23 builtin/shortlog: fix various trivial memory leaksPatrick Steinhardt, Jul 26, 2024
  35. 17/23 builtin/worktree: fix leaking derived branch namesPatrick Steinhardt, Jul 26, 2024
  36. 18/23 builtin/credential-cache: fix trivial leaksPatrick Steinhardt, Jul 26, 2024
  37. 19/23 t/test-repository: fix leaking repositoryPatrick Steinhardt, Jul 26, 2024
  38. 20/23 object-name: fix leaking commit list itemsPatrick Steinhardt, Jul 26, 2024
  39. 21/23 entry: fix leaking pathnames during delayed checkoutPatrick Steinhardt, Jul 26, 2024
  40. 22/23 convert: fix leaking config stringsPatrick Steinhardt, Jul 26, 2024
  41. 23/23 commit-reach: fix trivial memory leak when computing reachabilityPatrick Steinhardt, Jul 26, 2024
  42. Karthik NayakJul 30, 2024
  43. Patrick SteinhardtJul 31, 2024
  44. Taylor BlauJul 31, 2024
  45. Patrick SteinhardtAug 1, 2024
  46. Taylor BlauAug 1, 2024
  47. 00/24 Memory leak fixes (pt.3)Patrick Steinhardt, Aug 1, 2024
  48. 01/24 builtin/replay: plug leaking `advance_name` variablePatrick Steinhardt, Aug 1, 2024
  49. 02/24 builtin/log: fix leaking branch name when creating cover lettersPatrick Steinhardt, Aug 1, 2024
  50. 03/24 builtin/describe: fix memory leak with `--contains=`Patrick Steinhardt, Aug 1, 2024
  51. 04/24 builtin/describe: fix leaking array when running diff-indexPatrick Steinhardt, Aug 1, 2024
  52. 05/24 builtin/describe: fix trivial memory leak when describing blobPatrick Steinhardt, Aug 1, 2024
  53. 06/24 builtin/name-rev: fix various trivial memory leaksPatrick Steinhardt, Aug 1, 2024
  54. 08/24 builtin/submodule--helper: fix leaking buffer in `is_tip_reachable`Patrick Steinhardt, Aug 1, 2024
  55. 09/24 builtin/ls-remote: fix leaking `pattern` stringsPatrick Steinhardt, Aug 1, 2024
  56. 10/24 builtin/remote: fix leaking strings in `branch_list`Patrick Steinhardt, Aug 1, 2024
  57. 11/24 builtin/remote: fix various trivial memory leaksPatrick Steinhardt, Aug 1, 2024
  58. 12/24 builtin/stash: fix various trivial memory leaksPatrick Steinhardt, Aug 1, 2024
  59. 13/24 builtin/rev-parse: fix memory leak with `--parseopt`Patrick Steinhardt, Aug 1, 2024
  60. 14/24 builtin/show-branch: fix several memory leaksPatrick Steinhardt, Aug 1, 2024
  61. 15/24 builtin/credential-store: fix leaking credentialPatrick Steinhardt, Aug 1, 2024
  62. 16/24 builtin/rerere: fix various trivial memory leaksPatrick Steinhardt, Aug 1, 2024
  63. 17/24 builtin/shortlog: fix various trivial memory leaksPatrick Steinhardt, Aug 1, 2024
  64. 18/24 builtin/worktree: fix leaking derived branch namesPatrick Steinhardt, Aug 1, 2024
  65. 19/24 builtin/credential-cache: fix trivial leaksPatrick Steinhardt, Aug 1, 2024
  66. 20/24 t/test-repository: fix leaking repositoryPatrick Steinhardt, Aug 1, 2024
  67. 21/24 object-name: fix leaking commit list itemsPatrick Steinhardt, Aug 1, 2024
  68. 22/24 entry: fix leaking pathnames during delayed checkoutPatrick Steinhardt, Aug 1, 2024
  69. 23/24 convert: fix leaking config stringsPatrick Steinhardt, Aug 1, 2024
  70. 24/24 commit-reach: fix trivial memory leak when computing reachabilityPatrick Steinhardt, Aug 1, 2024
  71. 07/24 builtin/submodule--helper: fix leaking clone depth parameterPatrick Steinhardt, Aug 1, 2024
  72. Taylor BlauAug 1, 2024

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