Source: qemu
X-Debbugs-CC: [email protected]
Severity: important
Tags: security

Hi,

The following vulnerability was published for qemu.

CVE-2026-81627[0]:
| A flaw was found in QEMU. The VAPIC setup hypercall in
| hw/i386/vapic.c does not validate that the writable RAM alias
| remains within the option ROM window. A privileged guest user on a
| Q35/KVM machine can position this alias over locked SMRAM, bypassing
| chipset D_LCK protection and injecting code into System Management
| Mode memory.

https://gitlab.com/qemu-project/qemu/-/work_items/4206

Fixed by: 
https://gitlab.com/qemu-project/qemu/-/commit/d61c8a6fb7388486353aa267ba0d75b098f16662
 (master)
 

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-81627
    https://www.cve.org/CVERecord?id=CVE-2026-81627

Please adjust the affected versions in the BTS as needed.

Reply via email to