CVE-2026-89513 RISC-V: KVM: Fix PMU event info array size overflow

In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: Fix PMU event info array size overflow SBI PMU EVENTGETINFO stores guest-controlled numevents sizeofeinfo in a 32-bit integer. On RV64, numevents = 0x10000001 makes 0x100000010 truncate to 16. KVM then allocates one...

CVE-2026-89513

In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: Fix PMU event info array size overflow SBI PMU EVENTGETINFO stores guest-controlled numevents sizeofeinfo in a 32-bit integer. On RV64, numevents = 0x10000001 makes 0x100000010 truncate to 16. KVM then allocates one...

AlmaLinux 9 : kernel (ALSA-2026:66180)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:66180 advisory. kernel: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation CVE-2026-43133 kernel: ipv6: prevent possible UaF in addrconfpermanentaddr CVE-2026-43339...

AlmaLinux 10 : kernel (ALSA-2026:65334)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:65334 advisory. kernel: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation CVE-2026-43133 kernel: Bluetooth: SMP: force responder MITM requirements before building...

CVE-2026-89727: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: GICv2: Don't WARN on out-of-range GICVDIR INTID vgicv2deactivate passes the INTID a guest wrote to GICVDIR straight to vgicgetvcpuirq, and treats a failed lookup as a "can't happen" condition with WARNONONCE. The gues...

PT-2026-90472

In the Linux kernel, the following vulnerability has been resolved: mm/migrate: report RCU-tasks quiescent states in migrate pages batch migrate pages batch unmaps each folio before moving it, and every unmap runs the mmu notifier invalidate callbacks. On KVM hosts try to migrate ends up in kvm m...

AlmaLinux 9 : kernel (ALSA-2026:64808)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:64808 advisory. kernel: can: bcm: add locking for bcmop runtime updates CVE-2025-38004 kernel: iouring/poll: fix signed comparison in iopollgetownership CVE-2026-52933...

PT-2026-90443

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: GICv2: Don't WARN on out-of-range GICV DIR INTID vgic v2 deactivate passes the INTID a guest wrote to GICV DIR straight to vgic get vcpu irq, and treats a failed lookup as a "can't happen" condition with WARN ON ONCE...

CVE-2026-89513: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: Fix PMU event info array size overflow SBI PMU EVENTGETINFO stores guest-controlled numevents sizeofeinfo in a 32-bit integer. On RV64, numevents = 0x10000001 makes 0x100000010 truncate to 16. KVM then allocates one...

PT-2026-90229

In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: Fix PMU event info array size overflow SBI PMU EVENT GET INFO stores guest-controlled num events sizeofeinfo in a 32-bit integer. On RV64, num events = 0x10000001 makes 0x100000010 truncate to 16. KVM then allocates...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-107310)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-107310 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgicv2parseattr vgicv2parseattr is responsible fo...

kernel: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM nSVM module. When a nested virtual machine L2 guest executes VMSAVE/VMLOAD instructions, and these are not intercepted by the first-level hypervisor L1, KVM incorrectly uses vmcb02 instead of vmcb01 for managing guest state...

kernel security, bug fix, and enhancement update

An update is available for kernel. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel packages contain the Linux kernel, the core of any Linux operating...

RockyLinux 10 : kernel (RLSA-2026:65334)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:65334 advisory. kernel: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation CVE-2026-43133 kernel: Bluetooth: SMP: force responder MITM requirements before buildin...

kernel security update

5.14.0-687.45.1 - Disable UKI signing Orabug: 36571828 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug:...

Oracle Linux 9 : ELSA-2026-64808-0: / kernel (ELSA-2026-648080)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-648080 advisory. - KVM: arm64: Bound usedlrs when flushing the pKVM hyp vCPU Jon Maloy RHEL-234207 CVE-2026-64287 - nvmet-auth: validate reply message payload bounds...

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...

AZL-99950 CVE-2026-80921 affecting package kernel 6.6.150.1-1

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...