[systemd-devel] [PATCH] modules-load: fix memory leak

Lennart Poettering lennart at poettering.net
Mon May 11 14:16:12 PDT 2015


On Mon, 11.05.15 15:37, Cristian Rodríguez (crrodriguez at opensuse.org) wrote:

Applied! Thanks!

> =================================================================
> ==64281==ERROR: LeakSanitizer: detected memory leaks
> 
> Direct leak of 32 byte(s) in 1 object(s) allocated from:
>     #0 0x7f623c961c4a in malloc (/usr/lib64/libasan.so.2+0x96c4a)
>     #1 0x5651f79ad34e in malloc_multiply (/home/crrodriguez/scm/systemd/systemd-modules-load+0x2134e)
>     #2 0x5651f79b02d6 in strjoin (/home/crrodriguez/scm/systemd/systemd-modules-load+0x242d6)
>     #3 0x5651f79be1f5 in files_add (/home/crrodriguez/scm/systemd/systemd-modules-load+0x321f5)
>     #4 0x5651f79be6a3 in conf_files_list_strv_internal (/home/crrodriguez/scm/systemd/systemd-modules-load+0x326a3)
>     #5 0x5651f79bea24 in conf_files_list_nulstr (/home/crrodriguez/scm/systemd/systemd-modules-load+0x32a24)
>     #6 0x5651f79ad01a in main (/home/crrodriguez/scm/systemd/systemd-modules-load+0x2101a)
>     #7 0x7f623c11586f in __libc_start_main (/lib64/libc.so.6+0x2086f)
> 
> SUMMARY: AddressSanitizer: 32 byte(s) leaked in 1 allocation(s).
> 
> This happens due to the wrong cleanup attribute is used (free vs strv_free)
> ---
>  src/modules-load/modules-load.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/src/modules-load/modules-load.c b/src/modules-load/modules-load.c
> index 76e9403..5bbe314 100644
> --- a/src/modules-load/modules-load.c
> +++ b/src/modules-load/modules-load.c
> @@ -252,7 +252,7 @@ int main(int argc, char *argv[]) {
>                  }
>  
>          } else {
> -                _cleanup_free_ char **files = NULL;
> +                _cleanup_strv_free_ char **files = NULL;
>                  char **fn, **i;
>  
>                  STRV_FOREACH(i, arg_proc_cmdline_modules) {
> -- 
> 2.3.7
> 
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Lennart

-- 
Lennart Poettering, Red Hat


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