[alsa-devel] [PATCH 3/3] topology: Check address and length before string copy

From: Mengdong Lin mengdong.lin@linux.intel.com

Signed-off-by: Mengdong Lin mengdong.lin@linux.intel.com

diff --git a/src/topology/tplg_local.h b/src/topology/tplg_local.h index 4d79aa7..cfde4cc 100644 --- a/src/topology/tplg_local.h +++ b/src/topology/tplg_local.h @@ -253,6 +253,9 @@ struct tplg_elem* tplg_elem_new_common(snd_tplg_t *tplg,

static inline void elem_copy_text(char *dest, const char *src, int len) { + if (!dest || !src || !len) + return; + strncpy(dest, src, len); dest[len - 1] = 0; }