{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-93270",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-17T16:02:15.097Z",
        "datePublished": "2026-09-24T15:52:09.868Z",
        "dateUpdated": "2026-10-19T09:08:24.811Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:08:24.811Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Disallow interpreter fallback for BPF_ADDR_PERCPU insn\n\nThe BPF_MOV64_PERCPU_REG insn requires JIT to emit native code to for\n'dst_reg = src_reg + <percpu_base_off>'.\n\nHowever, the interpreter ignores the 'off' at its ALU64_MOV_X label.\nThe 'off' indicates the insn is BPF_MOV64_PERCPU_REG insn. Then, when\nthe interpreter loads memory from the register, it will hit a page\nfault.\n\n[    2.545572] BUG: unable to handle page fault for address: ffffffffacaaf034\n[    2.546485] #PF: supervisor read access in kernel mode\n[    2.547167] #PF: error_code(0x0000) - not-present page\n[    2.547850] PGD 134e63067 P4D 134e63067 PUD 134e64063 PMD 10021c063 PTE 800ffffeca550062\n[    2.548912] Oops: Oops: 0000 [#1] SMP PTI\n\nSet jit_required as true in order to disallow interpreter fallback in\ncore.c::__bpf_prog_select_runtime(), if any BPF_ADDR_PERCPU insn is\npatched to the prog.\n\nBTW, rename the helper bpf_map_supports_cpu_flags() to\nbpf_map_is_percpu_map()."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "include/linux/bpf.h",
                        "kernel/bpf/fixups.c"
                    ],
                    "versions": [
                        {
                            "version": "7bdbf7446305cb65c510c16d57cde82bc76b234a",
                            "lessThan": "57cf929a33cb76be3f24886073ae820b4c496914",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7bdbf7446305cb65c510c16d57cde82bc76b234a",
                            "lessThan": "7a0855e73757ee9cf25ba635a1c735018ecba742",
                            "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/bpf.h",
                        "kernel/bpf/fixups.c"
                    ],
                    "versions": [
                        {
                            "version": "6.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.10",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "6.10",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.10",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/57cf929a33cb76be3f24886073ae820b4c496914"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7a0855e73757ee9cf25ba635a1c735018ecba742"
                }
            ],
            "title": "bpf: Disallow interpreter fallback for BPF_ADDR_PERCPU insn",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}