{"dataType": "CVE_RECORD", "dataVersion": "5.1", "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": "2025-09-11T16:52:31.350Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-09-11T16:52:31.350Z"}, "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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "082735fbcdb6cd0cf20fbec94516ab2996f1cdd5", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "cfc9bc15bda6fd0c496cbe2c628564d4d7c332c1", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "af089e41811a1ad6a7b2b80e839a73ec4c3cecdd", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "3cb4f18797247985b0f51d5300f8cb6c78f343ea", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "79a5ae3c4c5eb7e38e0ebe4d6bf602d296080060", "status": "affected", "versionType": "git"}]}, {"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": "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-rc1", "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:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.6.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.12.43"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.15.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.16.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.17-rc1"}]}]}], "references": [{"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"}}}}

{}

{"cveTags": [], "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 ]"}], "id": "CVE-2025-39763", "lastModified": "2025-09-11T17:15:40.473", "metrics": {}, "published": "2025-09-11T17:15:40.473", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/082735fbcdb6cd0cf20fbec94516ab2996f1cdd5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3cb4f18797247985b0f51d5300f8cb6c78f343ea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/79a5ae3c4c5eb7e38e0ebe4d6bf602d296080060"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/af089e41811a1ad6a7b2b80e839a73ec4c3cecdd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cfc9bc15bda6fd0c496cbe2c628564d4d7c332c1"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}