CVE-2026-92522 Affecting linux-6.12 package, versions <6.12.111-1~deb12u1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-LINUX612-20506731
- published5 Oct 2026
- disclosed17 Sept 2026
Introduced: 17 Sep 2026
NewCVE-2026-92522 (opens in a new tab)How to fix?
Upgrade Debian:12 linux-6.12 to version 6.12.111-1~deb12u1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream linux-6.12 package and not the linux-6.12 package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
ACPI: processor: validate MADT IOAPIC entry bounds
The IOAPIC hotplug lookup parses both MADT and _MAT records directly. The MADT walk previously used a subtable's declared length to advance the cursor after only locating a generic header. The _MAT path likewise passed a generic header to the IOAPIC helper.
Validate that a current record has a complete generic header, that its declared length is contained in the available record range, and that a typed IOAPIC record contains the full fixed IOAPIC body before reading its fields. Use the same relation for both MADT and _MAT provider paths.
References
- https://security-tracker.debian.org/tracker/CVE-2026-92522
- https://git.kernel.org/stable/c/2a5520065e76000f8c979d3d7b3d861ccaaecf1e
- https://git.kernel.org/stable/c/2c50ffdc73f3a70d745d249f509fc290754121e6
- https://git.kernel.org/stable/c/355bee5f11acb116cd256588631b4028ca562646
- https://git.kernel.org/stable/c/4d8ecaa332c163f2b44aa5027bf061950b71b5f3
- https://git.kernel.org/stable/c/5601bd81bc290a724ed47797d22c16cba4d7ed9f
- https://git.kernel.org/stable/c/74d84320f8e37955eb286a7777843d554e6e75b2
- https://git.kernel.org/stable/c/8e67b58c04990817ac2dbf8ae03353be6a358cd4
- https://git.kernel.org/stable/c/ff82e3374e9103d046b2a82f4315d9a422ff097d