From: Patrick Steinhardt Date: Thu, 1 Aug 2024 10:41:11 +0000 (+0200) Subject: convert: fix leaking config strings X-Git-Tag: v2.47.0-rc0~153^2~1 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9642479a2b62f7a3f3bf6086c02157c745bb5d74;p=thirdparty%2Fgit.git convert: fix leaking config strings In `read_convert_config()`, we end up reading some string values into variables. We don't free any potentially-existing old values though, which will result in a memory leak in case the same key has been defined multiple times. Fix those leaks. Signed-off-by: Patrick Steinhardt Signed-off-by: Junio C Hamano --- diff --git a/convert.c b/convert.c index 61a540e212..92ce04c406 100644 --- a/convert.c +++ b/convert.c @@ -1050,14 +1050,20 @@ static int read_convert_config(const char *var, const char *value, * The command-line will not be interpolated in any way. */ - if (!strcmp("smudge", key)) + if (!strcmp("smudge", key)) { + FREE_AND_NULL(drv->smudge); return git_config_string(&drv->smudge, var, value); + } - if (!strcmp("clean", key)) + if (!strcmp("clean", key)) { + FREE_AND_NULL(drv->clean); return git_config_string(&drv->clean, var, value); + } - if (!strcmp("process", key)) + if (!strcmp("process", key)) { + FREE_AND_NULL(drv->process); return git_config_string(&drv->process, var, value); + } if (!strcmp("required", key)) { drv->required = git_config_bool(var, value); diff --git a/t/t0021-conversion.sh b/t/t0021-conversion.sh index 0b4997022b..eeb2714d9d 100755 --- a/t/t0021-conversion.sh +++ b/t/t0021-conversion.sh @@ -5,6 +5,7 @@ test_description='blob conversion via gitattributes' 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-terminal.sh