{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-38586",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T04:51:24.026Z",
        "datePublished": "2025-08-19T17:03:08.012Z",
        "dateUpdated": "2026-07-30T05:55:29.824Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-07-30T05:55:29.824Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, arm64: Fix fp initialization for exception boundary\n\nIn the ARM64 BPF JIT when prog->aux->exception_boundary is set for a BPF\nprogram, find_used_callee_regs() is not called because for a program\nacting as exception boundary, all callee saved registers are saved.\nfind_used_callee_regs() sets `ctx->fp_used = true;` when it sees FP\nbeing used in any of the instructions.\n\nFor programs acting as exception boundary, ctx->fp_used remains false\neven if frame pointer is used by the program and therefore, FP is not\nset-up for such programs in the prologue. This can cause the kernel to\ncrash due to a pagefault.\n\nFix it by setting ctx->fp_used = true for exception boundary programs as\nfp is always saved in such programs."
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 7.8,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/arm64/net/bpf_jit_comp.c"
                    ],
                    "versions": [
                        {
                            "version": "5d4fa9ec5643a5c75d3c1e6abf50fb9284caf1ff",
                            "lessThan": "0dbef493cae7d451f740558665893c000adb2321",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5d4fa9ec5643a5c75d3c1e6abf50fb9284caf1ff",
                            "lessThan": "e23184725dbb72d5d02940222eee36dbba2aa422",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5d4fa9ec5643a5c75d3c1e6abf50fb9284caf1ff",
                            "lessThan": "1ce30231e0a2c8c361ee5f8f7f265fc17130adce",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5d4fa9ec5643a5c75d3c1e6abf50fb9284caf1ff",
                            "lessThan": "b114fcee766d5101eada1aca7bb5fd0a86c89b35",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "arch/arm64/net/bpf_jit_comp.c"
                    ],
                    "versions": [
                        {
                            "version": "6.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.12",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.42",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15.10",
                            "lessThanOrEqual": "6.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.16.1",
                            "lessThanOrEqual": "6.16.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12",
                                    "versionEndExcluding": "6.12.42"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12",
                                    "versionEndExcluding": "6.15.10"
                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12",
                                    "versionEndExcluding": "6.16.1"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12",
                                    "versionEndExcluding": "6.17"
                                }
                            ]
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/0dbef493cae7d451f740558665893c000adb2321"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e23184725dbb72d5d02940222eee36dbba2aa422"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1ce30231e0a2c8c361ee5f8f7f265fc17130adce"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b114fcee766d5101eada1aca7bb5fd0a86c89b35"
                }
            ],
            "title": "bpf, arm64: Fix fp initialization for exception boundary",
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}