ice: fix using untrusted value of pkt_len in ice_vc_fdir_parse_raw()

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c"
                    ],
                    "versions": [
                        {
                            "version": "99f419df8a5c5e1a58822203989f77712d01d410",
                            "lessThan": "363377af2c9e874fbba3a199408f8ec7b37906f7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "99f419df8a5c5e1a58822203989f77712d01d410",
                            "lessThan": "362f704ba73a359db9cded567e891d9a8f081875",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "99f419df8a5c5e1a58822203989f77712d01d410",
                            "lessThan": "1388dd564183a5a18ec4a966748037736b5653c5",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c"
                    ],
                    "versions": [
                        {
                            "version": "6.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.12",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.80",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.14.2",
                            "lessThanOrEqual": "6.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }