CVE-2026-80921

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits When shadowing crypto access bits from a format0 apcb crycb 0 or 1, the bits 64..255 are unchanged from whatever is in the vsie page in the crycb and thus in the apcb. This gives a nested...

DEBIAN-CVE-2026-80921

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits When shadowing crypto access bits from a format0 apcb crycb 0 or 1, the bits 64..255 are unchanged from whatever is in the vsie page in the crycb and thus in the apcb. This gives a nested...

CVE-2026-80921

CVE-2026-80921 affects the Linux kernel in the KVM s390 vsie (Virtual SIE) subsystem. When shadowing crypto access bits from a format0 apcb (crycb 0 or 1), bits 64–255 retain stale values from the vsie page, potentially allowing a nested guest to access a device no longer available . The CVSS 3.1...

CVE-2026-80921 KVM: s390: vsie: zero stale crypto bits

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits When shadowing crypto access bits from a format0 apcb crycb 0 or 1, the bits 64..255 are unchanged from whatever is in the vsie page in the crycb and thus in the apcb. This gives a nested...

EUVD-2026-75098

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits When shadowing crypto access bits from a format0 apcb crycb 0 or 1, the bits 64..255 are unchanged from whatever is in the vsie page in the crycb and thus in the apcb. This gives a nested...

CVE-2026-80921 KVM: s390: vsie: zero stale crypto bits

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits When shadowing crypto access bits from a format0 apcb crycb 0 or 1, the bits 64..255 are unchanged from whatever is in the vsie page in the crycb and thus in the apcb. This gives a nested...

PT-2026-89091

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits When shadowing crypto access bits from a format0 apcb crycb 0 or 1, the bits 64..255 are unchanged from whatever is in the vsie page in the crycb and thus in the apcb. This gives a nested...

SUSE CVE-2026-80891

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Validate AIBV and AISB before pinning guest pages The AIBV holds one bit per MSI-X vector for a given function. The size of the bit vector is derived from the NOI and the AIBVO. If the size of the AIBV exceeds a...

AZL-99477 CVE-2026-80891 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Validate AIBV and AISB before pinning guest pages The AIBV holds one bit per MSI-X vector for a given function. The size of the bit vector is derived from the NOI and the AIBVO. If the size of the AIBV exceeds a...

CVE-2026-80891

CVE-2026-80891 affects the Linux kernel 's KVM s390 PCI subsystem. The vulnerability arises when the AIBV (Adaptive Interrupt Bit Vector) size—derived from the NOI and AIBVO—exceeds a single page boundary, making it impossible to safely pin the guest page. Additionally, the AISB (Adaptive Interru...

CVE-2026-80891 KVM: s390: pci: Validate AIBV and AISB before pinning guest pages

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Validate AIBV and AISB before pinning guest pages The AIBV holds one bit per MSI-X vector for a given function. The size of the bit vector is derived from the NOI and the AIBVO. If the size of the AIBV exceeds a...

CVE-2026-80891

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Validate AIBV and AISB before pinning guest pages The AIBV holds one bit per MSI-X vector for a given function. The size of the bit vector is derived from the NOI and the AIBVO. If the size of the AIBV exceeds a...

EUVD-2026-71641

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Validate AIBV and AISB before pinning guest pages The AIBV holds one bit per MSI-X vector for a given function. The size of the bit vector is derived from the NOI and the AIBVO. If the size of the AIBV exceeds a...

Linux Distros Unpatched Vulnerability : CVE-2026-80891

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: s390: pci: Validate AIBV and AISB before pinning guest pages The AIBV holds one bit per MSI-X vector for a given function. The size of the bit vector is...

kernel: s390/cpum_sf: Handle CPU hotplug remove during sampling

A vulnerability was found in the Linux Kernel. This issue affects performance monitoring on the s390 architecture during specific CPU hotplug scenarios...

kernel: s390/cpum_sf: Handle CPU hotplug remove during sampling

A vulnerability was found in the Linux Kernel. This issue affects performance monitoring on the s390 architecture during specific CPU hotplug scenarios...

CVE-2026-80708

A flaw was found in the Linux kernel's s390/zcrypt module. During the clear key to secure key token import process, an internal buffer used by the ipcprbhelper function was not properly scrubbed after use. This oversight could leave sensitive clear key material in memory. A local attacker could...

CVE-2026-80709

A flaw was found in the Linux kernel's s390/zcrypt component. An incorrect upper limit check for the domain value when processing an EP11 Cryptographic Coprocessor Request Block CPRB can allow a local user on custom device nodes to access heap memory. This could lead to information disclosure or...

CVE-2026-80679

A flaw was found in the Linux kernel. Specifically, within the s390/dasd component, the dasdreleasespace function incorrectly checks a function pointer by using a logical AND operator instead of a logical OR operator. This error can lead to a NULL pointer dereference, which may cause a system cra...

CVE-2026-80710

A flaw was found in the Linux kernel's s390/dasd component. An integer truncation vulnerability in the dasdeckdcheckdeviceformat function can lead to an undersized buffer allocation. This allows a local attacker to write past the end of the allocated buffer, potentially causing memory corruption...