fpga: altera-cvp: Avoid out-of-bounds read in trailing byte write

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/fpga/altera-cvp.c"
                    ],
                    "versions": [
                        {
                            "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
                            "lessThan": "447b3c893987a0106a65f04b62ec3271892e9d98",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
                            "lessThan": "3b8938f5fbcf4a918785f9cb4b108782eb4ea717",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
                            "lessThan": "2564ac3d3b8b47cd9692a5bf42d668ed7218b54e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
                            "lessThan": "8f3365ed2a5db2ac95ab70a6c47561db39d24537",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
                            "lessThan": "b138bc665e21d4422382ab43aebdf0a2b7bb9cb3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
                            "lessThan": "827ec385458adeeda651de2b6f3537e386b1a8d9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
                            "lessThan": "4dc1051939e499c838229af035464a5fc7671198",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "34d1dc17ce978ae76e676d401b48fe9d004aa948",
                            "lessThan": "9da70a43b5fea60d758137f7f0ccfe19356cb5bb",
                            "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/fpga/altera-cvp.c"
                    ],
                    "versions": [
                        {
                            "version": "4.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.14",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.270",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.109",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.50",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.4",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }