riscv: VMAP_STACK overflow detection thread-safe

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/riscv/include/asm/asm-prototypes.h",
                        "arch/riscv/include/asm/asm.h",
                        "arch/riscv/include/asm/thread_info.h",
                        "arch/riscv/kernel/asm-offsets.c",
                        "arch/riscv/kernel/entry.S",
                        "arch/riscv/kernel/traps.c"
                    ],
                    "versions": [
                        {
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                            "status": "affected",
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                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/riscv/include/asm/asm-prototypes.h",
                        "arch/riscv/include/asm/asm.h",
                        "arch/riscv/include/asm/thread_info.h",
                        "arch/riscv/kernel/asm-offsets.c",
                        "arch/riscv/kernel/entry.S",
                        "arch/riscv/kernel/traps.c"
                    ],
                    "versions": [
                        {
                            "version": "4.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.191",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.5.13",
                            "lessThanOrEqual": "6.5.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.3",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.7",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }