CVE-2026-68454
KVM: s390: pci: Fix handling of AIF enable without AISB
Description
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)).
INFO
Published Date :
Aug. 13, 2026, 3:19 p.m.
Last Modified :
Aug. 13, 2026, 3:19 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-68454
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Linux kernel to the latest version.
- Apply the specific patch for the KVM s390 PCI handler.
- Ensure GAITE correctly stores 0 for guest AISB.
- Verify IRQ registration handling without summary bits.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-68454.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68454 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-68454
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-68454 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68454 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 13, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc', 'lessThan': 'f887df91826e72b570c5e9298e66dd929f09edde', 'versionType': 'git'}, {'status': 'affected', 'version': '3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc', 'lessThan': '3ef3190e30601b2688bdc64169b938b8d7f42010', 'versionType': 'git'}, {'status': 'affected', 'version': '3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc', 'lessThan': 'd48b9b096d11e31690c0a4988f65f21b64c01b2a', 'versionType': 'git'}, {'status': 'affected', 'version': '3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc', 'lessThan': 'df72596278b0e22dac5ef2881e9221a3a2c4ed11', 'versionType': 'git'}, {'status': 'affected', 'version': '3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc', 'lessThan': '124a3769c43713a11a93a821b313e61ad5110cb8', 'versionType': 'git'}, {'status': 'affected', 'version': '3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc', 'lessThan': '3e3aa6da87d30a0064a17b836685cd43c90a3572', 'versionType': 'git'}], 'programFiles': ['arch/s390/kvm/pci.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['arch/s390/kvm/pci.c'], 'defaultStatus': 'affected'}] Added Description 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)). Added Reference https://git.kernel.org/stable/c/124a3769c43713a11a93a821b313e61ad5110cb8 Added Reference https://git.kernel.org/stable/c/3e3aa6da87d30a0064a17b836685cd43c90a3572 Added Reference https://git.kernel.org/stable/c/3ef3190e30601b2688bdc64169b938b8d7f42010 Added Reference https://git.kernel.org/stable/c/d48b9b096d11e31690c0a4988f65f21b64c01b2a Added Reference https://git.kernel.org/stable/c/df72596278b0e22dac5ef2881e9221a3a2c4ed11 Added Reference https://git.kernel.org/stable/c/f887df91826e72b570c5e9298e66dd929f09edde