On 21/11/30 02:40PM, zhanchengbin wrote:
> In setup_tdb(), need free tdb_dir before return,
> otherwise it will cause memory leak.
>
> Signed-off-by: Zhiqiang Liu <liuzhiqiang26@xxxxxxxxxx>
> Signed-off-by: zhanchengbin <zhanchengbin1@xxxxxxxxxx>
> ---
> e2fsck/dirinfo.c | 13 +++++++++----
> 1 file changed, 9 insertions(+), 4 deletions(-)
>
> diff --git a/e2fsck/dirinfo.c b/e2fsck/dirinfo.c
> index 49d624c5..a2b36d8e 100644
> --- a/e2fsck/dirinfo.c
> +++ b/e2fsck/dirinfo.c
> @@ -49,7 +49,7 @@ static void setup_tdb(e2fsck_t ctx, ext2_ino_t num_dirs)
> ext2_ino_t threshold;
> errcode_t retval;
> mode_t save_umask;
> - char *tdb_dir, uuid[40];
> + char *tdb_dir = NULL, uuid[40];
> int fd, enable;
>
> profile_get_string(ctx->profile, "scratch_files", "directory", 0, 0,
> @@ -61,11 +61,11 @@ static void setup_tdb(e2fsck_t ctx, ext2_ino_t num_dirs)
>
> if (!enable || !tdb_dir || access(tdb_dir, W_OK) ||
> (threshold && num_dirs <= threshold))
> - return;
> + goto error;
>
> retval = ext2fs_get_mem(strlen(tdb_dir) + 64, &db->tdb_fn);
I think freeing of db->tdb_fn should also be handled in case of an error.
> if (retval)
> - return;
> + goto error;
>
> uuid_unparse(ctx->fs->super->s_uuid, uuid);
> sprintf(db->tdb_fn, "%s/%s-dirinfo-XXXXXX", tdb_dir, uuid);
> @@ -74,7 +74,7 @@ static void setup_tdb(e2fsck_t ctx, ext2_ino_t num_dirs)
> umask(save_umask);
> if (fd < 0) {
> db->tdb = NULL;
> - return;
> + goto error;
So in case of an error we should call ext2fs_free_mem(&db->tdb_fn), right?
Rest looks good to me.
-ritesh
> }
>
> if (num_dirs < 99991)
> @@ -83,6 +83,11 @@ static void setup_tdb(e2fsck_t ctx, ext2_ino_t num_dirs)
> db->tdb = tdb_open(db->tdb_fn, num_dirs, TDB_NOLOCK | TDB_NOSYNC,
> O_RDWR | O_CREAT | O_TRUNC, 0600);
> close(fd);
> +
> +error:
> + if(tdb_dir) {
> + free(tdb_dir);
> + }
> }
> #endif
>
> --
> 2.23.0
>
>
