{"api_version":"1","generated_at":"2026-11-10T12:06:28+00:00","cve":"CVE-2025-39763","urls":{"html":"https://cve.report/CVE-2025-39763","api":"https://cve.report/api/cve/CVE-2025-39763.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-39763","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-39763"},"summary":{"title":"ACPI: APEI: send SIGBUS to current task if synchronous memory error not recovered","description":"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 ]","state":"PUBLISHED","assigner":"Linux","published_at":"2025-09-11 17:15:40","updated_at":"2026-11-05 22:17:30"},"problem_types":["NVD-CWE-noinfo"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/082735fbcdb6cd0cf20fbec94516ab2996f1cdd5","name":"https://git.kernel.org/stable/c/082735fbcdb6cd0cf20fbec94516ab2996f1cdd5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cfc9bc15bda6fd0c496cbe2c628564d4d7c332c1","name":"https://git.kernel.org/stable/c/cfc9bc15bda6fd0c496cbe2c628564d4d7c332c1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2fbc85da9ac9386bd89fcc94e0aadaea19d47784","name":"https://git.kernel.org/stable/c/2fbc85da9ac9386bd89fcc94e0aadaea19d47784","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/79a5ae3c4c5eb7e38e0ebe4d6bf602d296080060","name":"https://git.kernel.org/stable/c/79a5ae3c4c5eb7e38e0ebe4d6bf602d296080060","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3cb4f18797247985b0f51d5300f8cb6c78f343ea","name":"https://git.kernel.org/stable/c/3cb4f18797247985b0f51d5300f8cb6c78f343ea","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/af089e41811a1ad6a7b2b80e839a73ec4c3cecdd","name":"https://git.kernel.org/stable/c/af089e41811a1ad6a7b2b80e839a73ec4c3cecdd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-39763","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-39763","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462 2fbc85da9ac9386bd89fcc94e0aadaea19d47784 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462 082735fbcdb6cd0cf20fbec94516ab2996f1cdd5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462 cfc9bc15bda6fd0c496cbe2c628564d4d7c332c1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462 af089e41811a1ad6a7b2b80e839a73ec4c3cecdd git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462 3cb4f18797247985b0f51d5300f8cb6c78f343ea git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462 79a5ae3c4c5eb7e38e0ebe4d6bf602d296080060 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected af02933d59bd1621a48d8b0b331cca9e530ba14b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.4.69 5.5 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.8","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.8 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.164 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.103 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.43 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.15.11 6.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.16.2 6.16.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.17 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2025","cve_id":"39763","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2025-39763","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-11-05T21:10:59.269892Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-11-05T21:12:57.142Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/acpi/apei/ghes.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2fbc85da9ac9386bd89fcc94e0aadaea19d47784","status":"affected","version":"8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462","versionType":"git"},{"lessThan":"082735fbcdb6cd0cf20fbec94516ab2996f1cdd5","status":"affected","version":"8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462","versionType":"git"},{"lessThan":"cfc9bc15bda6fd0c496cbe2c628564d4d7c332c1","status":"affected","version":"8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462","versionType":"git"},{"lessThan":"af089e41811a1ad6a7b2b80e839a73ec4c3cecdd","status":"affected","version":"8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462","versionType":"git"},{"lessThan":"3cb4f18797247985b0f51d5300f8cb6c78f343ea","status":"affected","version":"8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462","versionType":"git"},{"lessThan":"79a5ae3c4c5eb7e38e0ebe4d6bf602d296080060","status":"affected","version":"8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462","versionType":"git"},{"status":"affected","version":"af02933d59bd1621a48d8b0b331cca9e530ba14b","versionType":"git"},{"lessThan":"5.5","status":"affected","version":"5.4.69","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/acpi/apei/ghes.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.8"},{"lessThan":"5.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.164","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.103","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.43","versionType":"semver"},{"lessThanOrEqual":"6.15.*","status":"unaffected","version":"6.15.11","versionType":"semver"},{"lessThanOrEqual":"6.16.*","status":"unaffected","version":"6.16.2","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.17","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.164","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.103","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.43","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.15.11","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.16.2","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.17","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.69","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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 ]"}],"providerMetadata":{"dateUpdated":"2026-05-23T16:00:39.327Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2025-39763","datePublished":"2025-09-11T16:52:31.350Z","dateReserved":"2025-04-16T07:20:57.126Z","dateUpdated":"2026-11-05T21:12:57.142Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-09-11 17:15:40","lastModifiedDate":"2026-11-05 22:17:30","problem_types":["NVD-CWE-noinfo"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-11-05T21:10:59.269892Z","id":"CVE-2025-39763","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.103","matchCriteriaId":"AC0A252C-F6BD-41C1-A461-AD2D5B2E915E"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.43","matchCriteriaId":"472C5F87-2BF3-4FAB-9B21-DA7513977363"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.15.11","matchCriteriaId":"BC242347-F722-43AE-B910-BE0B22386977"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"6.16.2","matchCriteriaId":"BD7C087D-2415-4521-B624-30003352F899"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"39763","Ordinal":"1","Title":"ACPI: APEI: send SIGBUS to current task if synchronous memory er","CVE":"CVE-2025-39763","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"39763","Ordinal":"1","NoteData":"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 ]","Type":"Description","Title":"ACPI: APEI: send SIGBUS to current task if synchronous memory er"}]}}}