CVE-2025-39763
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ACPI: APEI: send SIGBUS to current task if synchronous memory error not recovered
In the Linux kernel, the following vulnerability has been resolved: ACPI: APEI: send SIGBUS to current task if synchronous memory error not recovered If a synchronous error is detected as a result of user-space process triggering a 2-bit uncorrected error, the CPU will take a synchronous error exception such as Synchronous External Abort (SEA) on Arm64. The kernel will queue a memory_failure() work which poisons the related page, unmaps the page, and then sends a SIGBUS to the process, so that a system wide panic can be avoided. However, no memory_failure() work will be queued when abnormal synchronous errors occur. These errors can include situations like invalid PA, unexpected severity, no memory failure config support, invalid GUID section, etc. In such a case, the user-space process will trigger SEA again. This loop can potentially exceed the platform firmware threshold or even trigger a kernel hard lockup, leading to a system reboot. Fix it by performing a force kill if no memory_failure() work is queued for synchronous errors. [ rjw: Changelog edits ]
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462 | affected | git | 2fbc85da9ac9386bd89fcc94e0aadaea19d47784 | Unavailable | None listed |
| 8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462 | affected | git | 082735fbcdb6cd0cf20fbec94516ab2996f1cdd5 | Unavailable | None listed |
| 8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462 | affected | git | cfc9bc15bda6fd0c496cbe2c628564d4d7c332c1 | Unavailable | None listed |
| 8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462 | affected | git | af089e41811a1ad6a7b2b80e839a73ec4c3cecdd | Unavailable | None listed |
| 8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462 | affected | git | 3cb4f18797247985b0f51d5300f8cb6c78f343ea | Unavailable | None listed |
| 8fcc4ae6faf8b455eeef00bc9ae70744e3b0f462 | affected | git | 79a5ae3c4c5eb7e38e0ebe4d6bf602d296080060 | Unavailable | None listed |
| af02933d59bd1621a48d8b0b331cca9e530ba14b | affected | git | Unavailable | Unavailable | None listed |
| 5.4.69 | affected | semver | 5.5 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.8 | Unavailable | None listed |
| 6.1.164 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.103 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.43 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.15.11 | unaffected | semver | Unavailable | 6.15.* | None listed |
| 6.16.2 | unaffected | semver | Unavailable | 6.16.* | None listed |
| 6.17 | unaffected | original_commit_for_fix | Unavailable | * | None listed |