Re: [PATCH] tools: ynl: handle calloc failure in ynl_ntf_parse

[Hangbin Liu <hangbin.liu@linux.dev>]

Hi Triet,

I think your target tree is net-next, but it's close now. You can repost
the patch with the net-next tag after it's reopened.

https://netdev.bots.linux.dev/net-next.html

Thanks
Hangbin
On Tue, Aug 18, 2026 at 01:27:39PM +0000, Triet Hoang wrote:
> Check the return value of calloc() before dereferencing the allocated
> response structure in ynl_ntf_parse().
> 
> Signed-off-by: Triet Hoang <triet.hoang.dev@gmail.com>
> ---
>  tools/net/ynl/lib/ynl.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/tools/net/ynl/lib/ynl.c b/tools/net/ynl/lib/ynl.c
> index 2bcd781111d7..af101544c31a 100644
> --- a/tools/net/ynl/lib/ynl.c
> +++ b/tools/net/ynl/lib/ynl.c
> @@ -889,6 +889,9 @@ static int ynl_ntf_parse(struct ynl_sock *ys, const struct nlmsghdr *nlh)
>  		return YNL_PARSE_CB_ERROR;
>  
>  	rsp = calloc(1, info->alloc_sz);
> +	if (!rsp)
> +		return YNL_PARSE_CB_ERROR;
> +
>  	rsp->free = info->free;
>  	yarg.data = rsp->data;
>  	yarg.rsp_policy = info->policy;
> -- 
> 2.53.0
>