CVE-2026-68454 PUBLISHED

KVM: s390: pci: Fix handling of AIF enable without AISB

Assigner: Linux
Reserved: 30.07.2026 Published: 13.08.2026 Updated: 13.08.2026

In the Linux kernel, the following vulnerability has been resolved:

KVM: s390: pci: Fix handling of AIF enable without AISB

When a guest seeks to register IRQs without a summary bit specified, ensure that the associated GAITE then stores 0 for the guest AISB location instead of virt_to_phys(page_address(NULL)).

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc to f887df91826e72b570c5e9298e66dd929f09edde (excl.)
  • affected from 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc to 3ef3190e30601b2688bdc64169b938b8d7f42010 (excl.)
  • affected from 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc to d48b9b096d11e31690c0a4988f65f21b64c01b2a (excl.)
  • affected from 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc to df72596278b0e22dac5ef2881e9221a3a2c4ed11 (excl.)
  • affected from 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc to 124a3769c43713a11a93a821b313e61ad5110cb8 (excl.)
  • affected from 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc to 3e3aa6da87d30a0064a17b836685cd43c90a3572 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.0 is affected
  • unaffected from 0 to 6.0 (excl.)
  • unaffected from 6.1.178 to 6.1.* (incl.)
  • unaffected from 6.6.145 to 6.6.* (incl.)
  • unaffected from 6.12.97 to 6.12.* (incl.)
  • unaffected from 6.18.40 to 6.18.* (incl.)
  • unaffected from 7.1.5 to 7.1.* (incl.)
  • unaffected from 7.2-rc4 to * (incl.)

References