SUSE-SU-2026:2331-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP4 RT kernel was updated to fix various security issues The following security issues were fixed: - CVE-2026-31405: media: dvb-net: fix OOB access in ULE extension header tables bsc1261700. - CVE-2026-31629: nfc: llcp: add missing return after LLCPCLOSED checks...

SUSE CVE-2022-50224

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Treat NX as a valid SPTE bit for NPT Treat the NX bit as valid when using NPT, as KVM will set the NX bit when the NX huge page mitigation is enabled mindblowing and trigger the WARN that fires on reserved SPTE bits...

CVE-2022-48943

A hang vulnerability is possible in the Linux kernel in arch/x86/kvm/mmu/mmu.c. This issue may lead to compromised availability...

CVE-2022-48943

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: make apf token non-zero to fix bug In current async pagefault logic, when a page is ready, KVM relies on kvmarchcandequeueasyncpagepresent to determine whether to deliver a READY event to the Guest. This function te...

CVE-2022-48943 KVM: x86/mmu: make apf token non-zero to fix bug

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: make apf token non-zero to fix bug In current async pagefault logic, when a page is ready, KVM relies on kvmarchcandequeueasyncpagepresent to determine whether to deliver a READY event to the Guest. This function te...

CVE-2024-26990

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Write-protect L2 SPTEs in TDP MMU when clearing dirty status Check kvmmmupageadneedwriteprotect when deciding whether to write-protect or clear D-bits on TDP MMU SPTEs, so that the TDP MMU accounts for any...

CVE-2024-26991 KVM: x86/mmu: x86: Don't overflow lpage_info when checking attributes

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: x86: Don't overflow lpageinfo when checking attributes Fix KVMSETMEMORYATTRIBUTES to not overflow lpageinfo array and trigger KASAN splat, as seen in the privatememconversionstest selftest. When memory attributes ar...

CVE-2024-26991

CVE-2024-26991 relates to the Linux kernel KVM x86/mmu path. The vulnerability stems from overflow of the lpage_info array when checking attributes during KVM_SET_MEMORY_ATTRIBUTES, which can lead to a vmalloc-out-of-bounds read in hugepage attribute checks (observed as KASAN: vmalloc-out-of-boun...

CVE-2024-26990

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Write-protect L2 SPTEs in TDP MMU when clearing dirty status Check kvmmmupageadneedwriteprotect when deciding whether to write-protect or clear D-bits on TDP MMU SPTEs, so that the TDP MMU accounts for any...

CVE-2024-26990 KVM: x86/mmu: Write-protect L2 SPTEs in TDP MMU when clearing dirty status

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Write-protect L2 SPTEs in TDP MMU when clearing dirty status Check kvmmmupageadneedwriteprotect when deciding whether to write-protect or clear D-bits on TDP MMU SPTEs, so that the TDP MMU accounts for any...

CVE-2024-26990 KVM: x86/mmu: Write-protect L2 SPTEs in TDP MMU when clearing dirty status

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Write-protect L2 SPTEs in TDP MMU when clearing dirty status Check kvmmmupageadneedwriteprotect when deciding whether to write-protect or clear D-bits on TDP MMU SPTEs, so that the TDP MMU accounts for any...

CVE-2021-47094

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Don't advance iterator after restart due to yielding After dropping mmulock in the TDP MMU, restart the iterator during tdpiternext and do not advance the iterator. Advancing the iterator results in skipping the...

CVE-2021-47094

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Don't advance iterator after restart due to yielding After dropping mmulock in the TDP MMU, restart the iterator during tdpiternext and do not advance the iterator. Advancing the iterator results in skipping the...

CVE-2021-47094 KVM: x86/mmu: Don't advance iterator after restart due to yielding

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Don't advance iterator after restart due to yielding After dropping mmulock in the TDP MMU, restart the iterator during tdpiternext and do not advance the iterator. Advancing the iterator results in skipping the...

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: ipvlan: out-of-bounds write caused by unclear skb-cb CVE-2023-3090 kernel: clsflower: out-of-bounds write in flsetgeneveopt CVE-2023-35788 kernel: KVM: x86/mmu: race condition in...

kernel: Linux kernel KVM: Denial of Service via incorrect NX bit handling in NPT

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. When KVM uses Nested Page Tables NPT with NX huge page mitigation enabled, it incorrectly handles the No-Execute NX bit in Shadow Page Table Entries SPTE. This improper handling can be triggered by a local attacker...

SUSE-SU-2022:1571-1 Security update for the Linux Kernel (Live Patch 15 for SLE 15 SP3)

This update for the Linux Kernel 5.3.18-1503005954 fixes one issue. The following security issue was fixed: - - CVE-2022-1158: Fixed KVM x86/mmu compare-and-exchange of gPTE via the user address bsc1198133...

GSD-2022-1001136 KVM: x86/mmu: Zap _all_ roots when unmapping gfn range in TDP MMU

KVM: x86/mmu: Zap all roots when unmapping gfn range in TDP MMU This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.17.2 by commit...

GSD-2021-1002833 KVM: x86/mmu: Don't advance iterator after restart due to yielding

KVM: x86/mmu: Don't advance iterator after restart due to yielding This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.12 by commit...