From eb7261f14e1a86f0fd299a2ec408990d349ce3d1 Mon Sep 17 00:00:00 2001 From: Riccardo Mancini Date: Fri, 9 Jul 2021 18:34:53 +0200 Subject: perf test: Add free() calls for scandir() returned dirent entries ASan reported a memory leak for items of the entlist returned from scandir(). In fact, scandir() returns a malloc'd array of malloc'd dirents. This patch adds the missing (z)frees. Fixes: da963834fe6975a1 ("perf test: Iterate over shell tests in alphabetical order") Signed-off-by: Riccardo Mancini Cc: Alexander Shishkin Cc: Fabian Hemmer Cc: Ian Rogers Cc: Jiri Olsa Cc: Leo Yan Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Remi Bernon Link: http://lore.kernel.org/lkml/20210709163454.672082-1-rickyman7@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/builtin-test.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) (limited to 'tools/perf/tests/builtin-test.c') diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 41e3cf6bb66c..5e6242576236 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -26,6 +26,7 @@ #include #include #include +#include static bool dont_fork; @@ -540,7 +541,7 @@ static int shell_tests__max_desc_width(void) { struct dirent **entlist; struct dirent *ent; - int n_dirs; + int n_dirs, e; char path_dir[PATH_MAX]; const char *path = shell_tests__dir(path_dir, sizeof(path_dir)); int width = 0; @@ -564,8 +565,9 @@ static int shell_tests__max_desc_width(void) } } + for (e = 0; e < n_dirs; e++) + zfree(&entlist[e]); free(entlist); - return width; } @@ -596,7 +598,7 @@ static int run_shell_tests(int argc, const char *argv[], int i, int width) { struct dirent **entlist; struct dirent *ent; - int n_dirs; + int n_dirs, e; char path_dir[PATH_MAX]; struct shell_test st = { .dir = shell_tests__dir(path_dir, sizeof(path_dir)), @@ -629,6 +631,8 @@ static int run_shell_tests(int argc, const char *argv[], int i, int width) test_and_print(&test, false, -1); } + for (e = 0; e < n_dirs; e++) + zfree(&entlist[e]); free(entlist); return 0; } @@ -730,7 +734,7 @@ static int perf_test__list_shell(int argc, const char **argv, int i) { struct dirent **entlist; struct dirent *ent; - int n_dirs; + int n_dirs, e; char path_dir[PATH_MAX]; const char *path = shell_tests__dir(path_dir, sizeof(path_dir)); @@ -752,8 +756,11 @@ static int perf_test__list_shell(int argc, const char **argv, int i) continue; pr_info("%2d: %s\n", i, t.desc); + } + for (e = 0; e < n_dirs; e++) + zfree(&entlist[e]); free(entlist); return 0; } -- cgit v1.2.3