CVE-2025-39763

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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", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-39763", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-05T21:10:59.269892Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-05T21:12:57.142Z"}}]}}

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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 ]"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.164", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.103", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.43", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.15.11", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.16.2", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.17", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "5.4.69"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T16:00:39.327Z"}}}, "cveMetadata": {"cveId": "CVE-2025-39763", "state": "PUBLISHED", "dateUpdated": "2026-11-05T21:12:57.142Z", "dateReserved": "2025-04-16T07:20:57.126Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-09-11T16:52:31.350Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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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 ]"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nACPI: APEI: enviar SIGBUS a la tarea actual si el error de memoria s\u00edncrono no se recupera\n\nSi se detecta un error s\u00edncrono como resultado de que un proceso de espacio de usuario desencadene un error no corregido de 2 bits, la CPU tomar\u00e1 una excepci\u00f3n de error s\u00edncrono como una Aborto Externo S\u00edncrono (SEA) en Arm64. El kernel pondr\u00e1 en cola un trabajo de memory_failure() que envenena la p\u00e1gina relacionada, desmapea la p\u00e1gina y luego env\u00eda un SIGBUS al proceso, para que se pueda evitar un p\u00e1nico en todo el sistema.\n\nSin embargo, no se pondr\u00e1 en cola ning\u00fan trabajo de memory_failure() cuando ocurran errores s\u00edncronos anormales. Estos errores pueden incluir situaciones como PA inv\u00e1lida, gravedad inesperada, falta de soporte de configuraci\u00f3n de fallo de memoria, secci\u00f3n GUID inv\u00e1lida, etc. En tal caso, el proceso de espacio de usuario volver\u00e1 a desencadenar SEA. Este bucle puede exceder potencialmente el umbral del firmware de la plataforma o incluso desencadenar un bloqueo duro del kernel, lo que lleva a un reinicio del sistema.\n\nSolucionarlo realizando una eliminaci\u00f3n forzada si no se pone en cola ning\u00fan trabajo de memory_failure() para errores s\u00edncronos.\n\n[ rjw: Ediciones del registro de cambios ]"}], "id": "CVE-2025-39763", "lastModified": "2026-11-05T22:17:30.367", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-39763", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T21:10:59.269892Z", "version": "2.0.3"}}]}, "published": "2025-09-11T17:15:40.473", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/082735fbcdb6cd0cf20fbec94516ab2996f1cdd5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2fbc85da9ac9386bd89fcc94e0aadaea19d47784"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3cb4f18797247985b0f51d5300f8cb6c78f343ea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/79a5ae3c4c5eb7e38e0ebe4d6bf602d296080060"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/af089e41811a1ad6a7b2b80e839a73ec4c3cecdd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cfc9bc15bda6fd0c496cbe2c628564d4d7c332c1"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: ACPI: APEI: send SIGBUS to current task if synchronous memory error not recovered", "id": "2394650", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2394650"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-39763", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-09-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-39763\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-39763\nhttps://lore.kernel.org/linux-cve-announce/2025091146-CVE-2025-39763-902e@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-09-12T08:02:34.800845+00:00", "updated": "2025-09-12T08:02:34.800913+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}