1788 static int sockopt_alloc_buf(struct bpf_sockopt_kern *ctx, int max_optlen,  in sockopt_alloc_buf()  argument
1791 	if (unlikely(max_optlen < 0))  in sockopt_alloc_buf()
1794 	if (unlikely(max_optlen > PAGE_SIZE)) {  in sockopt_alloc_buf()
1798 		max_optlen = PAGE_SIZE;  in sockopt_alloc_buf()
1801 	if (max_optlen <= sizeof(buf->data)) {  in sockopt_alloc_buf()
1806 		ctx->optval_end = ctx->optval + max_optlen;  in sockopt_alloc_buf()
1807 		return max_optlen;  in sockopt_alloc_buf()
1810 	ctx->optval = kzalloc(max_optlen, GFP_USER);  in sockopt_alloc_buf()
1814 	ctx->optval_end = ctx->optval + max_optlen;  in sockopt_alloc_buf()
1816 	return max_optlen;  in sockopt_alloc_buf()
1844 	int ret, max_optlen;  in __cgroup_bpf_run_filter_setsockopt()  local
1850 	max_optlen = max_t(int, 16, *optlen);  in __cgroup_bpf_run_filter_setsockopt()
1851 	max_optlen = sockopt_alloc_buf(&ctx, max_optlen, &buf);  in __cgroup_bpf_run_filter_setsockopt()
1852 	if (max_optlen < 0)  in __cgroup_bpf_run_filter_setsockopt()
1853 		return max_optlen;  in __cgroup_bpf_run_filter_setsockopt()
1858 			      min(*optlen, max_optlen))) {  in __cgroup_bpf_run_filter_setsockopt()
1874 	} else if (ctx.optlen > max_optlen || ctx.optlen < -1) {  in __cgroup_bpf_run_filter_setsockopt()
1878 				     ctx.optlen, max_optlen);  in __cgroup_bpf_run_filter_setsockopt()
1926 				       sockptr_t optlen, int max_optlen,  in __cgroup_bpf_run_filter_getsockopt()  argument
1940 	orig_optlen = max_optlen;  in __cgroup_bpf_run_filter_getsockopt()
1941 	ctx.optlen = max_optlen;  in __cgroup_bpf_run_filter_getsockopt()
1942 	max_optlen = sockopt_alloc_buf(&ctx, max_optlen, &buf);  in __cgroup_bpf_run_filter_getsockopt()
1943 	if (max_optlen < 0)  in __cgroup_bpf_run_filter_getsockopt()
1944 		return max_optlen;  in __cgroup_bpf_run_filter_getsockopt()
1966 				      min(ctx.optlen, max_optlen))) {  in __cgroup_bpf_run_filter_getsockopt()
1981 	    (ctx.optlen > max_optlen || ctx.optlen < 0)) {  in __cgroup_bpf_run_filter_getsockopt()
1984 				     ctx.optlen, max_optlen);  in __cgroup_bpf_run_filter_getsockopt()