1950 static int sockopt_alloc_buf(struct bpf_sockopt_kern *ctx, int max_optlen,  in sockopt_alloc_buf()  argument
1953 	if (unlikely(max_optlen < 0))  in sockopt_alloc_buf()
1956 	if (unlikely(max_optlen > PAGE_SIZE)) {  in sockopt_alloc_buf()
1960 		max_optlen = PAGE_SIZE;  in sockopt_alloc_buf()
1963 	if (max_optlen <= sizeof(buf->data)) {  in sockopt_alloc_buf()
1968 		ctx->optval_end = ctx->optval + max_optlen;  in sockopt_alloc_buf()
1969 		return max_optlen;  in sockopt_alloc_buf()
1972 	ctx->optval = kzalloc(max_optlen, GFP_USER);  in sockopt_alloc_buf()
1976 	ctx->optval_end = ctx->optval + max_optlen;  in sockopt_alloc_buf()
1978 	return max_optlen;  in sockopt_alloc_buf()
2006 	int ret, max_optlen;  in __cgroup_bpf_run_filter_setsockopt()  local
2012 	max_optlen = max_t(int, 16, *optlen);  in __cgroup_bpf_run_filter_setsockopt()
2013 	max_optlen = sockopt_alloc_buf(&ctx, max_optlen, &buf);  in __cgroup_bpf_run_filter_setsockopt()
2014 	if (max_optlen < 0)  in __cgroup_bpf_run_filter_setsockopt()
2015 		return max_optlen;  in __cgroup_bpf_run_filter_setsockopt()
2020 			      min(*optlen, max_optlen))) {  in __cgroup_bpf_run_filter_setsockopt()
2036 	} else if (ctx.optlen > max_optlen || ctx.optlen < -1) {  in __cgroup_bpf_run_filter_setsockopt()
2040 				     ctx.optlen, max_optlen);  in __cgroup_bpf_run_filter_setsockopt()
2088 				       sockptr_t optlen, int max_optlen,  in __cgroup_bpf_run_filter_getsockopt()  argument
2102 	orig_optlen = max_optlen;  in __cgroup_bpf_run_filter_getsockopt()
2103 	ctx.optlen = max_optlen;  in __cgroup_bpf_run_filter_getsockopt()
2104 	max_optlen = sockopt_alloc_buf(&ctx, max_optlen, &buf);  in __cgroup_bpf_run_filter_getsockopt()
2105 	if (max_optlen < 0)  in __cgroup_bpf_run_filter_getsockopt()
2106 		return max_optlen;  in __cgroup_bpf_run_filter_getsockopt()
2128 				      min(ctx.optlen, max_optlen))) {  in __cgroup_bpf_run_filter_getsockopt()
2143 	    (ctx.optlen > max_optlen || ctx.optlen < 0)) {  in __cgroup_bpf_run_filter_getsockopt()
2146 				     ctx.optlen, max_optlen);  in __cgroup_bpf_run_filter_getsockopt()