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From: andrzej@ahunt.org
To: git@vger.kernel.org
Cc: andrzej@ahunt.org, phillip.wood123@gmail.com, newren@gmail.com
Subject: [PATCH v2 09/12] builtin/mv: free or UNLEAK multiple pointers at end of cmd_mv
Date: Sun, 25 Jul 2021 15:08:27 +0200	[thread overview]
Message-ID: <20210725130830.5145-10-andrzej@ahunt.org> (raw)
In-Reply-To: <20210725130830.5145-1-andrzej@ahunt.org>

From: Andrzej Hunt <ajrhunt@google.com>

These leaks all happen at the end of cmd_mv, hence don't matter in any
way. But we still fix the easy ones and squash the rest to get us closer
to being able to run tests without leaks.

LSAN output from t0050:

Direct leak of 384 byte(s) in 1 object(s) allocated from:
    #0 0x49ab49 in realloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3
    #1 0xa8c015 in xrealloc wrapper.c:126:8
    #2 0xa0a7e1 in add_entry string-list.c:44:2
    #3 0xa0a7e1 in string_list_insert string-list.c:58:14
    #4 0x5dac03 in cmd_mv builtin/mv.c:248:4
    #5 0x4ce83e in run_builtin git.c:475:11
    #6 0x4ccafe in handle_builtin git.c:729:3
    #7 0x4cb01c in run_argv git.c:818:4
    #8 0x4cb01c in cmd_main git.c:949:19
    #9 0x6bd9ad in main common-main.c:52:11
    #10 0x7fbfeffc4349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Direct leak of 16 byte(s) in 1 object(s) allocated from:
    #0 0x49a82d in malloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:145:3
    #1 0xa8bd09 in do_xmalloc wrapper.c:41:8
    #2 0x5dbc34 in internal_prefix_pathspec builtin/mv.c:32:2
    #3 0x5da575 in cmd_mv builtin/mv.c:158:14
    #4 0x4ce83e in run_builtin git.c:475:11
    #5 0x4ccafe in handle_builtin git.c:729:3
    #6 0x4cb01c in run_argv git.c:818:4
    #7 0x4cb01c in cmd_main git.c:949:19
    #8 0x6bd9ad in main common-main.c:52:11
    #9 0x7fbfeffc4349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Direct leak of 16 byte(s) in 1 object(s) allocated from:
    #0 0x49a82d in malloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:145:3
    #1 0xa8bd09 in do_xmalloc wrapper.c:41:8
    #2 0x5dbc34 in internal_prefix_pathspec builtin/mv.c:32:2
    #3 0x5da4e4 in cmd_mv builtin/mv.c:148:11
    #4 0x4ce83e in run_builtin git.c:475:11
    #5 0x4ccafe in handle_builtin git.c:729:3
    #6 0x4cb01c in run_argv git.c:818:4
    #7 0x4cb01c in cmd_main git.c:949:19
    #8 0x6bd9ad in main common-main.c:52:11
    #9 0x7fbfeffc4349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Direct leak of 8 byte(s) in 1 object(s) allocated from:
    #0 0x49a9a2 in calloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:154:3
    #1 0xa8c119 in xcalloc wrapper.c:140:8
    #2 0x5da585 in cmd_mv builtin/mv.c:159:22
    #3 0x4ce83e in run_builtin git.c:475:11
    #4 0x4ccafe in handle_builtin git.c:729:3
    #5 0x4cb01c in run_argv git.c:818:4
    #6 0x4cb01c in cmd_main git.c:949:19
    #7 0x6bd9ad in main common-main.c:52:11
    #8 0x7fbfeffc4349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Direct leak of 4 byte(s) in 1 object(s) allocated from:
    #0 0x49a9a2 in calloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:154:3
    #1 0xa8c119 in xcalloc wrapper.c:140:8
    #2 0x5da4f8 in cmd_mv builtin/mv.c:149:10
    #3 0x4ce83e in run_builtin git.c:475:11
    #4 0x4ccafe in handle_builtin git.c:729:3
    #5 0x4cb01c in run_argv git.c:818:4
    #6 0x4cb01c in cmd_main git.c:949:19
    #7 0x6bd9ad in main common-main.c:52:11
    #8 0x7fbfeffc4349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Indirect leak of 65 byte(s) in 1 object(s) allocated from:
    #0 0x49ab49 in realloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3
    #1 0xa8c015 in xrealloc wrapper.c:126:8
    #2 0xa00226 in strbuf_grow strbuf.c:98:2
    #3 0xa00226 in strbuf_vaddf strbuf.c:394:3
    #4 0xa065c7 in xstrvfmt strbuf.c:981:2
    #5 0xa065c7 in xstrfmt strbuf.c:991:8
    #6 0x9e7ce7 in prefix_path_gently setup.c:115:15
    #7 0x9e7fa6 in prefix_path setup.c:128:12
    #8 0x5dbdbf in internal_prefix_pathspec builtin/mv.c:55:23
    #9 0x5da575 in cmd_mv builtin/mv.c:158:14
    #10 0x4ce83e in run_builtin git.c:475:11
    #11 0x4ccafe in handle_builtin git.c:729:3
    #12 0x4cb01c in run_argv git.c:818:4
    #13 0x4cb01c in cmd_main git.c:949:19
    #14 0x6bd9ad in main common-main.c:52:11
    #15 0x7fbfeffc4349 in __libc_start_main (/lib64/libc.so.6+0x24349)

Indirect leak of 65 byte(s) in 1 object(s) allocated from:
    #0 0x49ab49 in realloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3
    #1 0xa8c015 in xrealloc wrapper.c:126:8
    #2 0xa00226 in strbuf_grow strbuf.c:98:2
    #3 0xa00226 in strbuf_vaddf strbuf.c:394:3
    #4 0xa065c7 in xstrvfmt strbuf.c:981:2
    #5 0xa065c7 in xstrfmt strbuf.c:991:8
    #6 0x9e7ce7 in prefix_path_gently setup.c:115:15
    #7 0x9e7fa6 in prefix_path setup.c:128:12
    #8 0x5dbdbf in internal_prefix_pathspec builtin/mv.c:55:23
    #9 0x5da4e4 in cmd_mv builtin/mv.c:148:11
    #10 0x4ce83e in run_builtin git.c:475:11
    #11 0x4ccafe in handle_builtin git.c:729:3
    #12 0x4cb01c in run_argv git.c:818:4
    #13 0x4cb01c in cmd_main git.c:949:19
    #14 0x6bd9ad in main common-main.c:52:11
    #15 0x7fbfeffc4349 in __libc_start_main (/lib64/libc.so.6+0x24349)

SUMMARY: AddressSanitizer: 558 byte(s) leaked in 7 allocation(s).

Signed-off-by: Andrzej Hunt <andrzej@ahunt.org>
---
 builtin/mv.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/builtin/mv.c b/builtin/mv.c
index 3fccdcb645..c2f96c8e89 100644
--- a/builtin/mv.c
+++ b/builtin/mv.c
@@ -303,5 +303,10 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
 			       COMMIT_LOCK | SKIP_IF_UNCHANGED))
 		die(_("Unable to write new index file"));
 
+	string_list_clear(&src_for_dst, 0);
+	UNLEAK(source);
+	UNLEAK(dest_path);
+	free(submodule_gitfile);
+	free(modes);
 	return 0;
 }
-- 
2.26.2


  parent reply	other threads:[~2021-07-25 13:09 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-20 15:11 [PATCH 00/12] Fix all leaks in tests t0002-t0099: Part 2 andrzej
2021-06-20 15:11 ` [PATCH 01/12] fmt-merge-msg: free newly allocated temporary strings when done andrzej
2021-06-21 20:34   ` Elijah Newren
2021-06-20 15:11 ` [PATCH 02/12] environment: move strbuf into block to plug leak andrzej
2021-06-21 20:49   ` Elijah Newren
2021-06-26  8:27     ` René Scharfe
2021-06-20 15:11 ` [PATCH 03/12] builtin/submodule--helper: release unused strbuf to avoid leak andrzej
2021-06-20 15:11 ` [PATCH 04/12] builtin/for-each-repo: remove unnecessary argv copy to plug leak andrzej
2021-06-21 20:55   ` Elijah Newren
2021-06-20 15:11 ` [PATCH 05/12] diffcore-rename: move old_dir/new_dir definition " andrzej
2021-06-21 14:01   ` Elijah Newren
2021-06-20 15:11 ` [PATCH 06/12] ref-filter: also free head for ATOM_HEAD to avoid leak andrzej
2021-06-21 21:10   ` Elijah Newren
2021-06-20 15:11 ` [PATCH 07/12] read-cache: call diff_setup_done " andrzej
2021-06-21 21:17   ` Elijah Newren
2021-06-20 15:12 ` [PATCH 08/12] convert: release strbuf " andrzej
2021-06-21 20:31   ` Elijah Newren
2021-06-20 15:12 ` [PATCH 09/12] builtin/mv: free or UNLEAK multiple pointers at end of cmd_mv andrzej
2021-06-20 15:12 ` [PATCH 10/12] builtin/merge: free found_ref when done andrzej
2021-06-21 21:27   ` Elijah Newren
2021-06-20 15:12 ` [PATCH 11/12] builtin/rebase: fix options.strategy memory lifecycle andrzej
2021-06-20 18:14   ` Phillip Wood
2021-06-21 21:39     ` Elijah Newren
2021-06-22  9:02       ` Phillip Wood
2021-07-25 13:03         ` Andrzej Hunt
2021-07-27 19:34           ` Phillip Wood
2021-06-20 15:12 ` [PATCH 12/12] reset: clear_unpack_trees_porcelain to plug leak andrzej
2021-06-21 21:44   ` Elijah Newren
2021-06-21 21:54 ` [PATCH 00/12] Fix all leaks in tests t0002-t0099: Part 2 Elijah Newren
2021-07-25 13:05   ` Andrzej Hunt
2021-07-26  8:01   ` Christian Couder
2021-07-25 13:08 ` [PATCH v2 " andrzej
2021-07-25 13:08   ` [PATCH v2 01/12] fmt-merge-msg: free newly allocated temporary strings when done andrzej
2021-07-26 19:20     ` Junio C Hamano
2021-07-25 13:08   ` [PATCH v2 02/12] environment: move strbuf into block to plug leak andrzej
2021-07-25 13:08   ` [PATCH v2 03/12] builtin/submodule--helper: release unused strbuf to avoid leak andrzej
2021-07-25 13:08   ` [PATCH v2 04/12] builtin/for-each-repo: remove unnecessary argv copy to plug leak andrzej
2021-07-26 20:02     ` Junio C Hamano
2021-07-25 13:08   ` [PATCH v2 05/12] diffcore-rename: move old_dir/new_dir definition " andrzej
2021-07-26 20:02     ` Junio C Hamano
2021-07-25 13:08   ` [PATCH v2 06/12] ref-filter: also free head for ATOM_HEAD to avoid leak andrzej
2021-07-26 20:04     ` Junio C Hamano
2021-07-25 13:08   ` [PATCH v2 07/12] read-cache: call diff_setup_done " andrzej
2021-07-26 20:10     ` Junio C Hamano
2021-07-25 13:08   ` [PATCH v2 08/12] convert: release strbuf " andrzej
2021-07-26 20:15     ` Junio C Hamano
2021-07-25 13:08   ` andrzej [this message]
2021-07-25 13:08   ` [PATCH v2 10/12] builtin/merge: free found_ref when done andrzej
2021-07-25 13:08   ` [PATCH v2 11/12] builtin/rebase: fix options.strategy memory lifecycle andrzej
2021-07-25 13:08   ` [PATCH v2 12/12] reset: clear_unpack_trees_porcelain to plug leak andrzej
2021-07-26 20:20   ` [PATCH v2 00/12] Fix all leaks in tests t0002-t0099: Part 2 Junio C Hamano

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