From: Zhiyuan Dai <daizhiyuan@xxxxxxxxxxxxxx> Subject: mm/kasan: switch from strlcpy to strscpy strlcpy is marked as deprecated in Documentation/process/deprecated.rst, and there is no functional difference when the caller expects truncation (when not checking the return value). strscpy is relatively better as it also avoids scanning the whole source string. Link: https://lkml.kernel.org/r/1613970647-23272-1-git-send-email-daizhiyuan@xxxxxxxxxxxxxx Signed-off-by: Zhiyuan Dai <daizhiyuan@xxxxxxxxxxxxxx> Acked-by: Alexander Potapenko <glider@xxxxxxxxxx> Reviewed-by: Andrey Konovalov <andreyknvl@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/kasan/report_generic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/kasan/report_generic.c~mm-kasan-switch-from-strlcpy-to-strscpy +++ a/mm/kasan/report_generic.c @@ -148,7 +148,7 @@ static bool __must_check tokenize_frame_ } /* Copy token (+ 1 byte for '\0'). */ - strlcpy(token, *frame_descr, tok_len + 1); + strscpy(token, *frame_descr, tok_len + 1); } /* Advance frame_descr past separator. */ _
