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: 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: 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...

ALSA-2026:66180 Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation CVE-2026-43133 kernel: ipv6: prevent possible UaF in addrconfpermanentaddr CVE-2026-43339 kernel: crypto: pcrypt - Fix handling of...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053289)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053289 advisory. In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Ignore nCR34:0 when loading PDPTEs from memory Ignore nCR34:0 when loading PDPTEs from...

CVE-2026-46032

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM nSVM module. When a nested virtual machine exit VMEXIT occurs, if the restoration of the host's Control Register 3 CR3 fails, the system continues to operate with a corrupted state. This can lead to an unrecoverable error,...

AZL-88614 CVE-2026-46076 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Raise UD if unhandled VMMCALL isn't intercepted by L1 Explicitly synthesize a UD for VMMCALL if L2 is active, L1 does NOT want to intercept VMMCALL, nestedsvml2tlbflushenabled is true, and the hypercall is something...

AZL-88682 CVE-2026-46071 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Avoid clearing VMCBLBR in vmcb12 svmcopylbrs always marks VMCBLBR dirty in the destination VMCB. However, nestedsvmvmexit uses it to copy LBRs to vmcb12, and clearing clean bits in vmcb12 is not architecturally defined...

AZL-88685 CVE-2026-46059 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Always use NextRIP as vmcb02's NextRIP after first L2 VMRUN For guests with NRIPS disabled, L1 does not provide NextRIP when running an L2 with an injected soft interrupt, instead it advances the current RIP before...

AZL-88487 CVE-2026-46032 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Triple fault if restore host CR3 fails on nested VMEXIT If loading L1's CR3 fails on a nested VMEXIT, nestedsvmvmexit returns an error code that is ignored by most callers, and continues to run L1 with corrupted state....

AZL-88544 CVE-2026-45987 affecting package kernel for versions less than 6.6.141.1-1

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Sync interrupt shadow to cached vmcb12 after VMRUN of L2 After VMRUN in guest mode, nestedsynccontrolfromvmcb02 syncs fields written by the CPU from vmcb02 to the cached vmcb12. This is because the cached vmcb12 is use...

CVE-2026-46076 KVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Raise UD if unhandled VMMCALL isn't intercepted by L1 Explicitly synthesize a UD for VMMCALL if L2 is active, L1 does NOT want to intercept VMMCALL, nestedsvml2tlbflushenabled is true, and the hypercall is something...

MiracleLinux 7 : kernel-3.10.0-1160.119.1.0.8.el7.AXS7 (AXSA:2025-9625:10)

The remote MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2025-9625:10 advisory. media: edia: dvbdev: fix a use-after-free CVE-2024-27043 btrfs: dev-replace: properly validate device names CVE-2024-26791 KVM: nSVM: Ignore nCR34:0...

SUSE-SU-2025:4123-1 Security update for the Linux Kernel (Live Patch 61 for SUSE Linux Enterprise 12 SP5)

This update for the SUSE Linux Enterprise kernel 4.12.14-122.231 fixes various security issues The following security issues were fixed: - CVE-2022-48956: ipv6: avoid use-after-free in ip6fragment bsc1232637. - CVE-2022-49014: net: tun: Fix use-after-free in tundetach bsc1232818. - CVE-2022-49053...

Security update for kernel-livepatch-MICRO-6-0_Update_2

This update for kernel-livepatch-MICRO-6-0Update2 fixes the following issues: CVE-2024-53042: ipv4: iptunnel: Fix suspicious RCU usage warning in iptunnelinitflow bsc1233678 CVE-2024-53156: wifi: ath9k: add range check for connrspepid in htcconnectservice bsc1234847 CVE-2024-50115: KVM: nSVM:...

Security update for kernel-livepatch-MICRO-6-0_Update_3

This update for kernel-livepatch-MICRO-6-0Update3 fixes the following issues: CVE-2024-53042: ipv4: iptunnel: Fix suspicious RCU usage warning in iptunnelinitflow bsc1233678 CVE-2024-53156: wifi: ath9k: add range check for connrspepid in htcconnectservice bsc1234847 CVE-2024-50115: KVM: nSVM:...

Security update for the Linux Kernel (Live Patch 4 for SLE 15 SP6)

This update for the Linux Kernel 6.4.0-1506002322 fixes several issues. The following security issues were fixed: CVE-2024-53042: ipv4: iptunnel: Fix suspicious RCU usage warning in iptunnelinitflow bsc1233678. CVE-2024-53156: wifi: ath9k: add range check for connrspepid in htcconnectservice...

Security update for kernel-livepatch-MICRO-6-0-RT_Update_2

This update for kernel-livepatch-MICRO-6-0-RTUpdate2 fixes the following issues: CVE-2024-53042: ipv4: iptunnel: Fix suspicious RCU usage warning in iptunnelinitflow bsc1233678 CVE-2024-53156: wifi: ath9k: add range check for connrspepid in htcconnectservice bsc1234847 CVE-2024-50115: KVM: nSVM:...

SUSE-SU-2025:01652-1 Security update for the Linux Kernel RT (Live Patch 5 for SLE 15 SP6)

This update for the Linux Kernel 6.4.0-1506001017 fixes several issues. The following security issues were fixed: - CVE-2024-53042: ipv4: iptunnel: Fix suspicious RCU usage warning in iptunnelinitflow bsc1233678. - CVE-2024-53156: wifi: ath9k: add range check for connrspepid in htcconnectservice...