From 4b05440283350ec3b01afabe847d9ce5cf4cbdb7 Mon Sep 17 00:00:00 2001 From: Jharrod LaFon Date: Mon, 19 Aug 2013 09:26:56 -0700 Subject: avoid segfault on submodule.*.path set to an empty "true" Git fails due to a segmentation fault if a submodule path is empty. Here is an example .gitmodules that will cause a segmentation fault: [submodule "foo-module"] path url = http://host/repo.git $ git status Segmentation fault (core dumped) This is because the parsing of "submodule.*.path" is not prepared to see a value-less "true" and assumes that the value is always non-NULL (parsing of "ignore" has the same problem). Fix it by checking the NULL-ness of value and complain with config_error_nonbool(). Signed-off-by: Jharrod LaFon Signed-off-by: Junio C Hamano --- submodule.c | 6 ++++++ t/t7400-submodule-basic.sh | 10 ++++++++++ 2 files changed, 16 insertions(+) diff --git a/submodule.c b/submodule.c index 975bc87e48..8f7515ed66 100644 --- a/submodule.c +++ b/submodule.c @@ -134,6 +134,9 @@ int parse_submodule_config_option(const char *var, const char *value) return 0; if (!strcmp(key, "path")) { + if (!value) + return config_error_nonbool(var); + config = unsorted_string_list_lookup(&config_name_for_path, value); if (config) free(config->util); @@ -151,6 +154,9 @@ int parse_submodule_config_option(const char *var, const char *value) } else if (!strcmp(key, "ignore")) { char *name_cstr; + if (!value) + return config_error_nonbool(var); + if (strcmp(value, "untracked") && strcmp(value, "dirty") && strcmp(value, "all") && strcmp(value, "none")) { warning("Invalid parameter \"%s\" for config option \"submodule.%s.ignore\"", value, var); diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh index 2683cba7e3..0edf74c68f 100755 --- a/t/t7400-submodule-basic.sh +++ b/t/t7400-submodule-basic.sh @@ -18,6 +18,16 @@ test_expect_success 'setup - initial commit' ' git branch initial ' +test_expect_success 'configuration parsing' ' + test_when_finished "rm -f .gitmodules" && + cat >.gitmodules <<-\EOF && + [submodule "s"] + path + ignore + EOF + test_must_fail git status +' + test_expect_success 'setup - repository in init subdirectory' ' mkdir init && ( -- cgit v1.2.1