{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-39763",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T07:20:57.126Z",
        "datePublished": "2025-09-11T16:52:31.350Z",
        "dateUpdated": "2026-05-23T16:00:39.327Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T16:00:39.327Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: APEI: send SIGBUS to current task if synchronous memory error not recovered\n\nIf a synchronous error is detected as a result of user-space process\ntriggering a 2-bit uncorrected error, the CPU will take a synchronous\nerror exception such as Synchronous External Abort (SEA) on Arm64. The\nkernel will queue a memory_failure() work which poisons the related\npage, unmaps the page, and then sends a SIGBUS to the process, so that\na system wide panic can be avoided.\n\nHowever, no memory_failure() work will be queued when abnormal\nsynchronous errors occur. These errors can include situations like\ninvalid PA, unexpected severity, no memory failure config support,\ninvalid GUID section, etc. In such a case, the user-space process will\ntrigger SEA again.  This loop can potentially exceed the platform\nfirmware threshold or even trigger a kernel hard lockup, leading to a\nsystem reboot.\n\nFix it by performing a force kill if no memory_failure() work is queued\nfor synchronous errors.\n\n[ rjw: Changelog edits ]"
                }
            ],
            "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"
                    ],
                    "versions": [
                        {
                            "version": "8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462",
                            "lessThan": "2fbc85da9ac9386bd89fcc94e0aadaea19d47784",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462",
                            "lessThan": "082735fbcdb6cd0cf20fbec94516ab2996f1cdd5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462",
                            "lessThan": "cfc9bc15bda6fd0c496cbe2c628564d4d7c332c1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462",
                            "lessThan": "af089e41811a1ad6a7b2b80e839a73ec4c3cecdd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462",
                            "lessThan": "3cb4f18797247985b0f51d5300f8cb6c78f343ea",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462",
                            "lessThan": "79a5ae3c4c5eb7e38e0ebe4d6bf602d296080060",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "af02933d59bd1621a48d8b0b331cca9e530ba14b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.4.69",
                            "lessThan": "5.5",
                            "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"
                    ],
                    "versions": [
                        {
                            "version": "5.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.164",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.103",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.43",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15.11",
                            "lessThanOrEqual": "6.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.16.2",
                            "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": "5.8",
                                    "versionEndExcluding": "6.1.164"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "6.6.103"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "6.12.43"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "6.15.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "6.16.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.8",
                                    "versionEndExcluding": "6.17"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4.69"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/2fbc85da9ac9386bd89fcc94e0aadaea19d47784"
                },
                {
                    "url": "https://git.kernel.org/stable/c/082735fbcdb6cd0cf20fbec94516ab2996f1cdd5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cfc9bc15bda6fd0c496cbe2c628564d4d7c332c1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/af089e41811a1ad6a7b2b80e839a73ec4c3cecdd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3cb4f18797247985b0f51d5300f8cb6c78f343ea"
                },
                {
                    "url": "https://git.kernel.org/stable/c/79a5ae3c4c5eb7e38e0ebe4d6bf602d296080060"
                }
            ],
            "title": "ACPI: APEI: send SIGBUS to current task if synchronous memory error not recovered",
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    }
}