From 01fd5fb14b4f2a910679cf2ac672ff6b1d742f19 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= Date: Mon, 6 Feb 2023 20:08:06 +0100 Subject: [PATCH 1/8] rebase: use "cleanup" pattern in do_interactive_rebase() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use a "goto cleanup" pattern in do_interactive_rebase(). This eliminates some duplicated free() code added in 53bbcfbde7c (rebase -i: implement the main part of interactive rebase as a builtin, 2018-09-27), and sets us up for a subsequent commit which'll make further use of the "cleanup" label. Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- builtin/rebase.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/builtin/rebase.c b/builtin/rebase.c index 7171be40ee..c97ce642cf 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -254,7 +254,7 @@ static int init_basic_state(struct replay_opts *opts, const char *head_name, static int do_interactive_rebase(struct rebase_options *opts, unsigned flags) { - int ret; + int ret = -1; char *revisions = NULL, *shortrevisions = NULL; struct strvec make_script_args = STRVEC_INIT; struct todo_list todo_list = TODO_LIST_INIT; @@ -262,16 +262,12 @@ static int do_interactive_rebase(struct rebase_options *opts, unsigned flags) if (get_revision_ranges(opts->upstream, opts->onto, &opts->orig_head->object.oid, &revisions, &shortrevisions)) - return -1; + goto cleanup; if (init_basic_state(&replay, opts->head_name ? opts->head_name : "detached HEAD", - opts->onto, &opts->orig_head->object.oid)) { - free(revisions); - free(shortrevisions); - - return -1; - } + opts->onto, &opts->orig_head->object.oid)) + goto cleanup; if (!opts->upstream && opts->squash_onto) write_file(path_squash_onto(), "%s\n", @@ -300,6 +296,7 @@ static int do_interactive_rebase(struct rebase_options *opts, unsigned flags) opts->autosquash, opts->update_refs, &todo_list); } +cleanup: free(revisions); free(shortrevisions); todo_list_release(&todo_list); From 6a09c3a9a69fa2059383dd94294bbfd44b440d4b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= Date: Mon, 6 Feb 2023 20:08:07 +0100 Subject: [PATCH 2/8] sequencer.c: split up sequencer_remove_state() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Split off the free()-ing in sequencer_remove_state() into a utility function, which will be adjusted and called independent of the other code in sequencer_remove_state() in a subsequent commit. The only functional change here is changing the "int" to a "size_t", which is the correct type, as "xopts_nr" is a "size_t". Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- sequencer.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/sequencer.c b/sequencer.c index 3e4a197289..b6392b4320 100644 --- a/sequencer.c +++ b/sequencer.c @@ -351,10 +351,22 @@ static const char *gpg_sign_opt_quoted(struct replay_opts *opts) return buf.buf; } +static void replay_opts_release(struct replay_opts *opts) +{ + free(opts->gpg_sign); + free(opts->reflog_action); + free(opts->default_strategy); + free(opts->strategy); + for (size_t i = 0; i < opts->xopts_nr; i++) + free(opts->xopts[i]); + free(opts->xopts); + strbuf_release(&opts->current_fixups); +} + int sequencer_remove_state(struct replay_opts *opts) { struct strbuf buf = STRBUF_INIT; - int i, ret = 0; + int ret = 0; if (is_rebase_i(opts) && strbuf_read_file(&buf, rebase_path_refs_to_delete(), 0) > 0) { @@ -373,14 +385,7 @@ int sequencer_remove_state(struct replay_opts *opts) } } - free(opts->gpg_sign); - free(opts->reflog_action); - free(opts->default_strategy); - free(opts->strategy); - for (i = 0; i < opts->xopts_nr; i++) - free(opts->xopts[i]); - free(opts->xopts); - strbuf_release(&opts->current_fixups); + replay_opts_release(opts); strbuf_reset(&buf); strbuf_addstr(&buf, get_dir(opts)); From 9ff2f0606915cf76fc4865bddf639fd5fd2cba29 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= Date: Mon, 6 Feb 2023 20:08:08 +0100 Subject: [PATCH 3/8] sequencer API users: fix get_replay_opts() leaks MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Make the replay_opts_release() function added in the preceding commit non-static, and use it for freeing the "struct replay_opts" constructed for "rebase" and "revert". To safely call our new replay_opts_release() we'll need to stop calling it in sequencer_remove_state(), and instead call it where we allocate the "struct replay_opts" itself. This is because in e.g. do_interactive_rebase() we construct a "struct replay_opts" with "get_replay_opts()", and then call "complete_action()". If we get far enough in that function without encountering errors we'll call "pick_commits()" which (indirectly) calls sequencer_remove_state() at the end. But if we encounter errors anywhere along the way we'd punt out early, and not free() the memory we allocated. Remembering whether we previously called sequencer_remove_state() would be a hassle. Using a FREE_AND_NULL() pattern would also work, as it would be safe to call replay_opts_release() repeatedly. But let's fix this properly instead, by having the owner of the data free() it. Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- builtin/rebase.c | 4 ++++ builtin/revert.c | 2 ++ sequencer.c | 4 +--- sequencer.h | 1 + t/t3405-rebase-malformed.sh | 1 + t/t3412-rebase-root.sh | 1 + t/t3419-rebase-patch-id.sh | 1 + t/t3423-rebase-reword.sh | 1 + t/t3425-rebase-topology-merges.sh | 2 ++ t/t3437-rebase-fixup-options.sh | 1 + t/t3438-rebase-broken-files.sh | 2 ++ t/t3501-revert-cherry-pick.sh | 1 + t/t3502-cherry-pick-merge.sh | 1 + t/t3503-cherry-pick-root.sh | 1 + t/t3506-cherry-pick-ff.sh | 1 + t/t3511-cherry-pick-x.sh | 1 + t/t7402-submodule-rebase.sh | 1 + t/t9106-git-svn-commit-diff-clobber.sh | 1 - t/t9164-git-svn-dcommit-concurrent.sh | 1 - 19 files changed, 23 insertions(+), 5 deletions(-) diff --git a/builtin/rebase.c b/builtin/rebase.c index c97ce642cf..2ec3ae0b42 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -297,6 +297,7 @@ static int do_interactive_rebase(struct rebase_options *opts, unsigned flags) } cleanup: + replay_opts_release(&replay); free(revisions); free(shortrevisions); todo_list_release(&todo_list); @@ -338,6 +339,7 @@ static int run_sequencer_rebase(struct rebase_options *opts) struct replay_opts replay_opts = get_replay_opts(opts); ret = sequencer_continue(the_repository, &replay_opts); + replay_opts_release(&replay_opts); break; } case ACTION_EDIT_TODO: @@ -553,6 +555,7 @@ static int finish_rebase(struct rebase_options *opts) replay.action = REPLAY_INTERACTIVE_REBASE; ret = sequencer_remove_state(&replay); + replay_opts_release(&replay); } else { strbuf_addstr(&dir, opts->state_dir); if (remove_dir_recursively(&dir, 0)) @@ -1324,6 +1327,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) replay.action = REPLAY_INTERACTIVE_REBASE; ret = sequencer_remove_state(&replay); + replay_opts_release(&replay); } else { strbuf_reset(&buf); strbuf_addstr(&buf, options.state_dir); diff --git a/builtin/revert.c b/builtin/revert.c index f2d86d2a8f..1cab16bf3e 100644 --- a/builtin/revert.c +++ b/builtin/revert.c @@ -251,6 +251,7 @@ int cmd_revert(int argc, const char **argv, const char *prefix) if (opts.revs) release_revisions(opts.revs); free(opts.revs); + replay_opts_release(&opts); return res; } @@ -267,5 +268,6 @@ int cmd_cherry_pick(int argc, const char **argv, const char *prefix) free(opts.revs); if (res < 0) die(_("cherry-pick failed")); + replay_opts_release(&opts); return res; } diff --git a/sequencer.c b/sequencer.c index b6392b4320..1547fb9859 100644 --- a/sequencer.c +++ b/sequencer.c @@ -351,7 +351,7 @@ static const char *gpg_sign_opt_quoted(struct replay_opts *opts) return buf.buf; } -static void replay_opts_release(struct replay_opts *opts) +void replay_opts_release(struct replay_opts *opts) { free(opts->gpg_sign); free(opts->reflog_action); @@ -385,8 +385,6 @@ int sequencer_remove_state(struct replay_opts *opts) } } - replay_opts_release(opts); - strbuf_reset(&buf); strbuf_addstr(&buf, get_dir(opts)); if (remove_dir_recursively(&buf, 0)) diff --git a/sequencer.h b/sequencer.h index 888c18aad7..3bcdfa1b58 100644 --- a/sequencer.h +++ b/sequencer.h @@ -158,6 +158,7 @@ int sequencer_pick_revisions(struct repository *repo, int sequencer_continue(struct repository *repo, struct replay_opts *opts); int sequencer_rollback(struct repository *repo, struct replay_opts *opts); int sequencer_skip(struct repository *repo, struct replay_opts *opts); +void replay_opts_release(struct replay_opts *opts); int sequencer_remove_state(struct replay_opts *opts); #define TODO_LIST_KEEP_EMPTY (1U << 0) diff --git a/t/t3405-rebase-malformed.sh b/t/t3405-rebase-malformed.sh index 2524331861..8979bc3407 100755 --- a/t/t3405-rebase-malformed.sh +++ b/t/t3405-rebase-malformed.sh @@ -5,6 +5,7 @@ test_description='rebase should handle arbitrary git message' GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-rebase.sh diff --git a/t/t3412-rebase-root.sh b/t/t3412-rebase-root.sh index 58371d8a54..e75b3d0e07 100755 --- a/t/t3412-rebase-root.sh +++ b/t/t3412-rebase-root.sh @@ -7,6 +7,7 @@ Tests if git rebase --root --onto can rebase the root commit. GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh log_with_names () { diff --git a/t/t3419-rebase-patch-id.sh b/t/t3419-rebase-patch-id.sh index 7181f176b8..6c61f240cf 100755 --- a/t/t3419-rebase-patch-id.sh +++ b/t/t3419-rebase-patch-id.sh @@ -5,6 +5,7 @@ test_description='git rebase - test patch id computation' GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh scramble () { diff --git a/t/t3423-rebase-reword.sh b/t/t3423-rebase-reword.sh index 4859bb8f72..2fab703d61 100755 --- a/t/t3423-rebase-reword.sh +++ b/t/t3423-rebase-reword.sh @@ -2,6 +2,7 @@ test_description='git rebase interactive with rewording' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-rebase.sh diff --git a/t/t3425-rebase-topology-merges.sh b/t/t3425-rebase-topology-merges.sh index 63acc1ea4d..a16428bdf5 100755 --- a/t/t3425-rebase-topology-merges.sh +++ b/t/t3425-rebase-topology-merges.sh @@ -1,6 +1,8 @@ #!/bin/sh test_description='rebase topology tests with merges' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-rebase.sh diff --git a/t/t3437-rebase-fixup-options.sh b/t/t3437-rebase-fixup-options.sh index c023fefd68..274699dadb 100755 --- a/t/t3437-rebase-fixup-options.sh +++ b/t/t3437-rebase-fixup-options.sh @@ -14,6 +14,7 @@ to the "fixup" command that works with "fixup!", "fixup -C" works with "amend!" upon --autosquash. ' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh . "$TEST_DIRECTORY"/lib-rebase.sh diff --git a/t/t3438-rebase-broken-files.sh b/t/t3438-rebase-broken-files.sh index b92a3ce46b..c614c4f2e4 100755 --- a/t/t3438-rebase-broken-files.sh +++ b/t/t3438-rebase-broken-files.sh @@ -1,6 +1,8 @@ #!/bin/sh test_description='rebase behavior when on-disk files are broken' + +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success 'set up conflicting branches' ' diff --git a/t/t3501-revert-cherry-pick.sh b/t/t3501-revert-cherry-pick.sh index 1f4cfc3744..2f3e3e2416 100755 --- a/t/t3501-revert-cherry-pick.sh +++ b/t/t3501-revert-cherry-pick.sh @@ -13,6 +13,7 @@ test_description='test cherry-pick and revert with renames 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/t3502-cherry-pick-merge.sh b/t/t3502-cherry-pick-merge.sh index 5495eacfec..1b2c0d6aca 100755 --- a/t/t3502-cherry-pick-merge.sh +++ b/t/t3502-cherry-pick-merge.sh @@ -11,6 +11,7 @@ test_description='cherry picking and reverting a merge 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/t3503-cherry-pick-root.sh b/t/t3503-cherry-pick-root.sh index 95fe4feaee..76d393dc8a 100755 --- a/t/t3503-cherry-pick-root.sh +++ b/t/t3503-cherry-pick-root.sh @@ -5,6 +5,7 @@ test_description='test cherry-picking (and reverting) a root commit' 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/t3506-cherry-pick-ff.sh b/t/t3506-cherry-pick-ff.sh index 7e11bd4a4c..b71bad17b8 100755 --- a/t/t3506-cherry-pick-ff.sh +++ b/t/t3506-cherry-pick-ff.sh @@ -5,6 +5,7 @@ test_description='test cherry-picking with --ff option' 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/t3511-cherry-pick-x.sh b/t/t3511-cherry-pick-x.sh index 84a587daf3..dd5d92ef30 100755 --- a/t/t3511-cherry-pick-x.sh +++ b/t/t3511-cherry-pick-x.sh @@ -2,6 +2,7 @@ test_description='Test cherry-pick -x and -s' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh pristine_detach () { diff --git a/t/t7402-submodule-rebase.sh b/t/t7402-submodule-rebase.sh index ebeca12a71..b19792b326 100755 --- a/t/t7402-submodule-rebase.sh +++ b/t/t7402-submodule-rebase.sh @@ -5,6 +5,7 @@ test_description='Test rebasing, stashing, etc. with submodules' +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh test_expect_success setup ' diff --git a/t/t9106-git-svn-commit-diff-clobber.sh b/t/t9106-git-svn-commit-diff-clobber.sh index 3cab0b9720..bca496c40e 100755 --- a/t/t9106-git-svn-commit-diff-clobber.sh +++ b/t/t9106-git-svn-commit-diff-clobber.sh @@ -3,7 +3,6 @@ # Copyright (c) 2006 Eric Wong test_description='git svn commit-diff clobber' -TEST_FAILS_SANITIZE_LEAK=true . ./lib-git-svn.sh test_expect_success 'initialize repo' ' diff --git a/t/t9164-git-svn-dcommit-concurrent.sh b/t/t9164-git-svn-dcommit-concurrent.sh index 1465156072..c8e6c0733f 100755 --- a/t/t9164-git-svn-dcommit-concurrent.sh +++ b/t/t9164-git-svn-dcommit-concurrent.sh @@ -5,7 +5,6 @@ test_description='concurrent git svn dcommit' -TEST_FAILS_SANITIZE_LEAK=true . ./lib-git-svn.sh From a6a700a43c6f73f5abef95f97355ff8ce0523e0e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= Date: Mon, 6 Feb 2023 20:08:09 +0100 Subject: [PATCH 4/8] builtin/revert.c: move free-ing of "revs" to replay_opts_release() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In [1] and [2] I added the code being moved here to cmd_revert() and cmd_cherry_pick(), now that we've got a "replay_opts_release()" for the "struct replay_opts" it should know how to free these "revs", rather than having these users reach into the struct to free its individual members. 1. d1ec656d68f (cherry-pick: free "struct replay_opts" members, 2022-11-08) 2. fd74ac95ac3 (revert: free "struct replay_opts" members, 2022-07-01) Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- builtin/revert.c | 6 ------ sequencer.c | 3 +++ 2 files changed, 3 insertions(+), 6 deletions(-) diff --git a/builtin/revert.c b/builtin/revert.c index 1cab16bf3e..77d2035616 100644 --- a/builtin/revert.c +++ b/builtin/revert.c @@ -248,9 +248,6 @@ int cmd_revert(int argc, const char **argv, const char *prefix) res = run_sequencer(argc, argv, &opts); if (res < 0) die(_("revert failed")); - if (opts.revs) - release_revisions(opts.revs); - free(opts.revs); replay_opts_release(&opts); return res; } @@ -263,9 +260,6 @@ int cmd_cherry_pick(int argc, const char **argv, const char *prefix) opts.action = REPLAY_PICK; sequencer_init_config(&opts); res = run_sequencer(argc, argv, &opts); - if (opts.revs) - release_revisions(opts.revs); - free(opts.revs); if (res < 0) die(_("cherry-pick failed")); replay_opts_release(&opts); diff --git a/sequencer.c b/sequencer.c index 1547fb9859..cb4b1ce062 100644 --- a/sequencer.c +++ b/sequencer.c @@ -361,6 +361,9 @@ void replay_opts_release(struct replay_opts *opts) free(opts->xopts[i]); free(opts->xopts); strbuf_release(&opts->current_fixups); + if (opts->revs) + release_revisions(opts->revs); + free(opts->revs); } int sequencer_remove_state(struct replay_opts *opts) From 94ad545d47afe2b73dad871635b92956644815f5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= Date: Mon, 6 Feb 2023 20:08:10 +0100 Subject: [PATCH 5/8] builtin/rebase.c: fix "options.onto_name" leak MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Similar to the existing "squash_onto_name" added in [1] we need to free() the xstrdup()'d "options.onto.name" added for "--keep-base" in [2].. 1. 9dba809a69a (builtin rebase: support --root, 2018-09-04) 2. 414d924beb4 (rebase: teach rebase --keep-base, 2019-08-27) Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- builtin/rebase.c | 4 +++- t/t3416-rebase-onto-threedots.sh | 1 + 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/builtin/rebase.c b/builtin/rebase.c index 2ec3ae0b42..41e96f0eb5 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -1039,6 +1039,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) struct string_list strategy_options = STRING_LIST_INIT_NODUP; struct object_id squash_onto; char *squash_onto_name = NULL; + char *keep_base_onto_name = NULL; int reschedule_failed_exec = -1; int allow_preemptive_ff = 1; int preserve_merges_selected = 0; @@ -1675,7 +1676,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) strbuf_addstr(&buf, options.upstream_name); strbuf_addstr(&buf, "..."); strbuf_addstr(&buf, branch_name); - options.onto_name = xstrdup(buf.buf); + options.onto_name = keep_base_onto_name = xstrdup(buf.buf); } else if (!options.onto_name) options.onto_name = options.upstream_name; if (strstr(options.onto_name, "...")) { @@ -1851,6 +1852,7 @@ cleanup: free(options.strategy); strbuf_release(&options.git_format_patch_opt); free(squash_onto_name); + free(keep_base_onto_name); string_list_clear(&strategy_options, 0); return !!ret; } diff --git a/t/t3416-rebase-onto-threedots.sh b/t/t3416-rebase-onto-threedots.sh index ea501f2b42..f8c4ed78c9 100755 --- a/t/t3416-rebase-onto-threedots.sh +++ b/t/t3416-rebase-onto-threedots.sh @@ -5,6 +5,7 @@ test_description='git rebase --onto A...B' 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-rebase.sh" From a5792e9d0929f30ece6b8cb679cc58fc700f7d09 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= Date: Mon, 6 Feb 2023 20:08:11 +0100 Subject: [PATCH 6/8] sequencer.c: always free() the "msgbuf" in do_pick_commit() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In [1] the strbuf_release(&msgbuf) was moved into this do_pick_commit(), but didn't take into account the case of [2], where we'd return before the strbuf_release(&msgbuf). Then when the "fixup" support was added in [3] this leak got worse, as in this error case we added another place where we'd "return" before reaching the strbuf_release(). This changes the behavior so that we'll call update_abort_safety_file() in these cases where we'd previously "return", but as noted in [4] "update_abort_safety_file() is a no-op when rebasing and you're changing code that is only run when rebasing.". Here "no-op" refers to the early return in update_abort_safety_file() if git_path_seq_dir() doesn't exist. 1. 452202c74b8 (sequencer: stop releasing the strbuf in write_message(), 2016-10-21) 2. f241ff0d0a9 (prepare the builtins for a libified merge_recursive(), 2016-07-26) 3. 6e98de72c03 (sequencer (rebase -i): add support for the 'fixup' and 'squash' commands, 2017-01-02) 4. https://lore.kernel.org/git/bcace50b-a4c3-c468-94a3-4fe0c62b3671@dunelm.org.uk/ Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- sequencer.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/sequencer.c b/sequencer.c index cb4b1ce062..fb23f734ad 100644 --- a/sequencer.c +++ b/sequencer.c @@ -2277,8 +2277,10 @@ static int do_pick_commit(struct repository *r, reword = 1; else if (is_fixup(command)) { if (update_squash_messages(r, command, commit, - opts, item->flags)) - return -1; + opts, item->flags)) { + res = -1; + goto leave; + } flags |= AMEND_MSG; if (!final_fixup) msg_file = rebase_path_squash_msg(); @@ -2288,9 +2290,11 @@ static int do_pick_commit(struct repository *r, } else { const char *dest = git_path_squash_msg(r); unlink(dest); - if (copy_file(dest, rebase_path_squash_msg(), 0666)) - return error(_("could not rename '%s' to '%s'"), - rebase_path_squash_msg(), dest); + if (copy_file(dest, rebase_path_squash_msg(), 0666)) { + res = error(_("could not rename '%s' to '%s'"), + rebase_path_squash_msg(), dest); + goto leave; + } unlink(git_path_merge_msg(r)); msg_file = dest; flags |= EDIT_MSG; @@ -2328,7 +2332,6 @@ static int do_pick_commit(struct repository *r, free_commit_list(common); free_commit_list(remotes); } - strbuf_release(&msgbuf); /* * If the merge was clean or if it failed due to conflict, we write @@ -2402,6 +2405,7 @@ fast_forward_edit: leave: free_message(commit, &msg); free(author); + strbuf_release(&msgbuf); update_abort_safety_file(); return res; From a5350408871c69357cbe805fcfa3cc087cca0908 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= Date: Mon, 6 Feb 2023 20:08:12 +0100 Subject: [PATCH 7/8] builtin/rebase.c: free() "options.strategy_opts" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When the "strategy_opts" member was added in ba1905a5fef (builtin rebase: add support for custom merge strategies, 2018-09-04) the corresponding free() for it at the end of cmd_rebase() wasn't added, let's do so. Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- builtin/rebase.c | 1 + 1 file changed, 1 insertion(+) diff --git a/builtin/rebase.c b/builtin/rebase.c index 41e96f0eb5..6635f10d52 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -1850,6 +1850,7 @@ cleanup: free(options.gpg_sign_opt); string_list_clear(&options.exec, 0); free(options.strategy); + free(options.strategy_opts); strbuf_release(&options.git_format_patch_opt); free(squash_onto_name); free(keep_base_onto_name); From 0c10ed19c4806e9a75e63fd5185d4d4c15f99c63 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= Date: Mon, 6 Feb 2023 20:08:13 +0100 Subject: [PATCH 8/8] commit.c: free() revs.commit in get_fork_point() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix a memory leak that's been with us since d96855ff517 (merge-base: teach "--fork-point" mode, 2013-10-23). Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Junio C Hamano --- commit.c | 1 + t/t3431-rebase-fork-point.sh | 1 + t/t3432-rebase-fast-forward.sh | 1 + 3 files changed, 3 insertions(+) diff --git a/commit.c b/commit.c index 14538a811a..e433c33bb0 100644 --- a/commit.c +++ b/commit.c @@ -1033,6 +1033,7 @@ struct commit *get_fork_point(const char *refname, struct commit *commit) ret = bases->item; cleanup_return: + free(revs.commit); free_commit_list(bases); free(full_refname); return ret; diff --git a/t/t3431-rebase-fork-point.sh b/t/t3431-rebase-fork-point.sh index 70e8136356..4bfc779bb8 100755 --- a/t/t3431-rebase-fork-point.sh +++ b/t/t3431-rebase-fork-point.sh @@ -8,6 +8,7 @@ test_description='git rebase --fork-point test' GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME +TEST_PASSES_SANITIZE_LEAK=true . ./test-lib.sh # A---B---D---E (main) diff --git a/t/t3432-rebase-fast-forward.sh b/t/t3432-rebase-fast-forward.sh index 5086e14c02..7f1a5dd3de 100755 --- a/t/t3432-rebase-fast-forward.sh +++ b/t/t3432-rebase-fast-forward.sh @@ -8,6 +8,7 @@ test_description='ensure rebase fast-forwards commits when possible' 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 '