CVE-2026-68454 is a vulnerability in Linux Kernel
Published on August 13, 2026
KVM: s390: pci: Fix handling of AIF enable without AISB
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)).
Products Associated with CVE-2026-68454
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Affected Versions
Linux:- Version 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc and below f887df91826e72b570c5e9298e66dd929f09edde is affected.
- Version 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc and below 3ef3190e30601b2688bdc64169b938b8d7f42010 is affected.
- Version 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc and below d48b9b096d11e31690c0a4988f65f21b64c01b2a is affected.
- Version 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc and below df72596278b0e22dac5ef2881e9221a3a2c4ed11 is affected.
- Version 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc and below 124a3769c43713a11a93a821b313e61ad5110cb8 is affected.
- Version 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc and below 3e3aa6da87d30a0064a17b836685cd43c90a3572 is affected.
- Version 6.0 is affected.
- Before 6.0 is unaffected.
- Version 6.1.178, <= 6.1.* is unaffected.
- Version 6.6.145, <= 6.6.* is unaffected.
- Version 6.12.97, <= 6.12.* is unaffected.
- Version 6.18.40, <= 6.18.* is unaffected.
- Version 7.1.5, <= 7.1.* is unaffected.
- Version 7.2-rc4, <= * is unaffected.