The vulnerability of the pgshift_level_to_ttl() function in the arch/arm64/kvm/nested.c file of Linux kernel allows an attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the pgshiftleveltottl function in the arch/arm64/kvm/nested.c file of Linux operating systems is related to integer overflow. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of the protected information...

Linux Distros Unpatched Vulnerability : CVE-2026-89775

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation Computing the effects of a TLB invalidation involves looking at the size of the mapping...

SUSE CVE-2026-89775

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation Computing the effects of a TLB invalidation involves looking at the size of the mapping cached by the TLB. For S1 mappings such as VNCR, this is deducted from...

DEBIAN-CVE-2026-89775

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation Computing the effects of a TLB invalidation involves looking at the size of the mapping cached by the TLB. For S1 mappings such as VNCR, this is deducted from...

CVE-2026-89775

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation Computing the effects of a TLB invalidation involves looking at the size of the mapping cached by the TLB. For S1 mappings such as VNCR, this is deducted from...

CVE-2026-89775

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation Computing the effects of a TLB invalidation involves looking at the size of the mapping cached by the TLB. For S1 mappings such as VNCR, this is deducted from...

UBUNTU-CVE-2026-89775

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation Computing the effects of a TLB invalidation involves looking at the size of the mapping cached by the TLB. For S1 mappings such as VNCR, this is deducted from...

CVE-2026-89775 KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation Computing the effects of a TLB invalidation involves looking at the size of the mapping cached by the TLB. For S1 mappings such as VNCR, this is deducted from...

CVE-2026-89775

CVE-2026-89775 affects the Linux kernel in the KVM arm64 subsystem. When the S1 MMU is disabled, the page-table walk level is set to −127 (S1_MMU_DISABLED), but pgshift_level_to_ttl() casts it to an unsigned 8-bit value, yielding an invalidation size of 0 during VNCR TLB evaluation. This can leav...

CVE-2026-89775 KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation Computing the effects of a TLB invalidation involves looking at the size of the mapping cached by the TLB. For S1 mappings such as VNCR, this is deducted from...