{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-43201",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-01T14:12:55.992Z",
        "datePublished": "2026-05-06T11:28:07.565Z",
        "dateUpdated": "2026-05-23T16:06:29.674Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T16:06:29.674Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nAPEI/GHES: ARM processor Error: don't go past allocated memory\n\nIf the BIOS generates a very small ARM Processor Error, or\nan incomplete one, the current logic will fail to deferrence\n\n\terr->section_length\nand\n\tctx_info->size\n\nAdd checks to avoid that. With such changes, such GHESv2\nrecords won't cause OOPSes like this:\n\n[    1.492129] Internal error: Oops: 0000000096000005 [#1]  SMP\n[    1.495449] Modules linked in:\n[    1.495820] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted 6.18.0-rc1-00017-gabadcc3553dd-dirty #18 PREEMPT\n[    1.496125] Hardware name: QEMU QEMU Virtual Machine, BIOS unknown 02/02/2022\n[    1.496433] Workqueue: kacpi_notify acpi_os_execute_deferred\n[    1.496967] pstate: 814000c5 (Nzcv daIF +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n[    1.497199] pc : log_arm_hw_error+0x5c/0x200\n[    1.497380] lr : ghes_handle_arm_hw_error+0x94/0x220\n\n0xffff8000811c5324 is in log_arm_hw_error (../drivers/ras/ras.c:75).\n70\t\terr_info = (struct cper_arm_err_info *)(err + 1);\n71\t\tctx_info = (struct cper_arm_ctx_info *)(err_info + err->err_info_num);\n72\t\tctx_err = (u8 *)ctx_info;\n73\n74\t\tfor (n = 0; n < err->context_info_num; n++) {\n75\t\t\tsz = sizeof(struct cper_arm_ctx_info) + ctx_info->size;\n76\t\t\tctx_info = (struct cper_arm_ctx_info *)((long)ctx_info + sz);\n77\t\t\tctx_len += sz;\n78\t\t}\n79\n\nand similar ones while trying to access section_length on an\nerror dump with too small size.\n\n[ rjw: Subject tweaks ]"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/acpi/apei/ghes.c",
                        "drivers/ras/ras.c"
                    ],
                    "versions": [
                        {
                            "version": "2599ad5e33b629a78a14a463a51afa134e9c5b15",
                            "lessThan": "242c652849d979d0133c315a42d9acea0ff88390",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "22b5096abc9824fb84f0bfe084f5be9f7ea5f2d9",
                            "lessThan": "136093ba4161e0080088abff48273f6830a47766",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "05954511b73e748d0370549ad9dd9cd95297d97a",
                            "lessThan": "db103b8bd3a4aca69b1b5fe8831a6ed75ac4b3bd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "05954511b73e748d0370549ad9dd9cd95297d97a",
                            "lessThan": "87880af2d24e62a84ed19943dbdd524f097172f2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0aa7b12eaa87cd6ffa25d432d3c58986516f8b1c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.12.63",
                            "lessThan": "6.12.75",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.2",
                            "lessThan": "6.18.16",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.13",
                            "lessThan": "6.18",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/acpi/apei/ghes.c",
                        "drivers/ras/ras.c"
                    ],
                    "versions": [
                        {
                            "version": "6.19",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.19",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.75",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.16",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.6",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "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": "6.12.63",
                                    "versionEndExcluding": "6.12.75"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18.2",
                                    "versionEndExcluding": "6.18.16"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.19",
                                    "versionEndExcluding": "6.19.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.19",
                                    "versionEndExcluding": "7.0"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.17.13"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/242c652849d979d0133c315a42d9acea0ff88390"
                },
                {
                    "url": "https://git.kernel.org/stable/c/136093ba4161e0080088abff48273f6830a47766"
                },
                {
                    "url": "https://git.kernel.org/stable/c/db103b8bd3a4aca69b1b5fe8831a6ed75ac4b3bd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/87880af2d24e62a84ed19943dbdd524f097172f2"
                }
            ],
            "title": "APEI/GHES: ARM processor Error: don't go past allocated memory",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}