PT-2024-27218 · Linux +3 · Linux Kernel +3

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the loss of young/dirty bits during pagemap scan in the Linux kernel. Specifically, the make uffd wp pte function was previously doing pte = ptep getptep; ptep...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that originates from the mm/userfaultfd module resetting write-protected ptes on close...

CVE-2021-47450

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix host stage-2 PGD refcount The KVM page-table library refcounts the pages of concatenated stage-2 PGDs individually. However, when running KVM in protected mode, the host's stage-2 PGD is currently managed by EL2 a...

kernel: highmem: fix checks in __kmap_local_sched_{in,out}

In the Linux kernel, the following vulnerability has been resolved: highmem: fix checks in kmaplocalschedin,out When CONFIGDEBUGKMAPLOCAL is enabled kmaplocalschedin,out check that even slots in the tsk-kmapctrl.pteval are unmapped. The slots are initialized with 0 value, but the check is done wi...

CVE-2021-47450

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix host stage-2 PGD refcount The KVM page-table library refcounts the pages of concatenated stage-2 PGDs individually. However, when running KVM in protected mode, the host's stage-2 PGD is currently managed by EL2 a...

CVE-2021-47450

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix host stage-2 PGD refcount The KVM page-table library refcounts the pages of concatenated stage-2 PGDs individually. However, when running KVM in protected mode, the host's stage-2 PGD is currently managed by EL2 a...

DEBIAN-CVE-2021-47450

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix host stage-2 PGD refcount The KVM page-table library refcounts the pages of concatenated stage-2 PGDs individually. However, when running KVM in protected mode, the host's stage-2 PGD is currently managed by EL2 a...

CVE-2021-47450 KVM: arm64: Fix host stage-2 PGD refcount

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix host stage-2 PGD refcount The KVM page-table library refcounts the pages of concatenated stage-2 PGDs individually. However, when running KVM in protected mode, the host's stage-2 PGD is currently managed by EL2 a...

CVE-2021-47450 KVM: arm64: Fix host stage-2 PGD refcount

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix host stage-2 PGD refcount The KVM page-table library refcounts the pages of concatenated stage-2 PGDs individually. However, when running KVM in protected mode, the host's stage-2 PGD is currently managed by EL2 a...

CVE-2021-47450

CVE-2021-47450 affects the Linux kernel KVM arm64 when running in protected mode. The issue was in the host stage-2 page-table (PGD) refcount: the KVM page-table library refcounts concatenated stage-2 PGD pages individually, but in EL2 the host stage-2 PGD could be a single high-order compound pa...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel. An attacker exploits the vulnerability to cause page table corruption...

CVE-2024-35802

A flaw was found in the Linux kernel. Incorrect position-dependent variable references in the startup code may lead to a crash...

CVE-2024-35802

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

SUSE 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-2024-27007

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: change srcfolio after ensuring it's unpinned in UFFDIOMOVE Commit d7a08838ab74 "mm: userfaultfd: fix unexpected change to srcfolio when UFFDIOMOVE fails" moved the srcfolio-mapping, index changing to after clearing t...

CVE-2024-27007

The CVE-2024-27007 issue affects the Linux kernel’s userfaultfd handling, specifically the UFFDIO_MOVE path. The root cause described across connected docs is a change to the src_folio (mapping/index) after clearing the page tables and ensuring it is not pinned, introduced by a commit intended to...

SUSE CVE-2024-26670

In the Linux kernel, the following vulnerability has been resolved: arm64: entry: fix ARM64WORKAROUNDSPECULATIVEUNPRIVLOAD Currently the ARM64WORKAROUNDSPECULATIVEUNPRIVLOAD workaround isn't quite right, as it is supposed to be applied after the last explicit memory access, but is immediately...

OESA-2024-1353 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: 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...

OESA-2024-1355 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: 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...

OESA-2024-1357 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: 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...