bpf: Fix invalid prog->stats access when update_effective_progs fails

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/linux/filter.h",
                        "kernel/bpf/syscall.c"
                    ],
                    "versions": [
                        {
                            "version": "492ecee892c2a4ba6a14903d5d586ff750b7e805",
                            "lessThan": "93d1964773ff513c9bd530f7686d3e48b786fa6b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "492ecee892c2a4ba6a14903d5d586ff750b7e805",
                            "lessThan": "bf2c990b012100610c0f1ec5c4ea434da2d080c2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "492ecee892c2a4ba6a14903d5d586ff750b7e805",
                            "lessThan": "539137e3038ce6f953efd72110110f03c14c7d97",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "492ecee892c2a4ba6a14903d5d586ff750b7e805",
                            "lessThan": "56905bb70c8b88421709bb4e32fcba617aa37d41",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "492ecee892c2a4ba6a14903d5d586ff750b7e805",
                            "lessThan": "2579c356ccd35d06238b176e4b460978186d804b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "492ecee892c2a4ba6a14903d5d586ff750b7e805",
                            "lessThan": "7dc211c1159d991db609bdf4b0fb9033c04adcbc",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/linux/filter.h",
                        "kernel/bpf/syscall.c"
                    ],
                    "versions": [
                        {
                            "version": "5.1",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.1",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.160",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.120",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.63",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.13",
                            "lessThanOrEqual": "6.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.2",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }