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...

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...

OESA-2024-1356 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...

PT-2024-18889 · Qualcomm · Qualcomm

Name of the Vulnerable Software and Affected Versions: Qualcomm affected versions not specified Description: The issue is related to memory corruption that occurs when there is a failed unmap operation in the GPU. This can lead to a use-after-free UAF condition in the client if a dangling page...

SUSE CVE-2021-47034

In the Linux kernel, the following vulnerability has been resolved: powerpc/64s: Fix pte update for kernel memory on radix When adding a PTE a ptesync is needed to order the update of the PTE with subsequent accesses otherwise a spurious fault may be raised. radixsetpteat does not do this for...

kernel: denial of service in follow_page_pte in mm/gup.c due to poisoned pte entry

A vulnerability was found in followpagepte in mm/gup.c in the Linux Kernel. This issue occurs due to a race problem which can poison the page table entry and cause a denial-of-service...

kernel: denial of service in follow_page_pte in mm/gup.c due to poisoned pte entry

A vulnerability was found in followpagepte in mm/gup.c in the Linux Kernel. This issue occurs due to a race problem which can poison the page table entry and cause a denial-of-service...

kernel: denial of service in follow_page_pte in mm/gup.c due to poisoned pte entry

A vulnerability was found in followpagepte in mm/gup.c in the Linux Kernel. This issue occurs due to a race problem which can poison the page table entry and cause a denial-of-service...

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...

The vulnerability in the `follow_page_pte` function of the `mm/gup.c` file in the Linux kernel allows a hacker to trigger a service failure or gain unauthorized access to protected information.

The vulnerability of the followpagepte function in the mm/gup.c file of the Linux operating system’s kernel is related to the race condition. Exploiting this vulnerability can allow an attacker to cause a service failure or gain unauthorized access to protected information...

PT-2023-35044 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v6.1.8 Description: The issue concerns the handling of PTE markers in the hugetlb change protection function. It was introduced in version v5.19 and fixed in version v6.1.8. The actual impact and attack...

PT-2022-35155 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v6.0.3 Description: The issue is related to a warning fix in the Linux Kernel without PTE MARKER UFFD WP compiled in. The actual impact and attack plausibility have not yet been proven. Recommendations: For Linu...

CVE-2022-1158

A flaw was found in KVM. When updating a guest's page table entry, vmpgoff was improperly used as the offset to get the page's pfn. As vaddr and vmpgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and...

DEBIAN-CVE-2022-1158

A flaw was found in KVM. When updating a guest's page table entry, vmpgoff was improperly used as the offset to get the page's pfn. As vaddr and vmpgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and...

Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-5416-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5416-1 advisory. Qiuhao Li, Gaoning Pan and Yongkang Jia discovered that the KVM implementation in the Linux kernel did not properly perform guest page table updates in...

PT-2025-8495

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been resolved. The issue is related to the KVM x86 component, where the update of guest PTE A/D bits was not properly handled. The VM PFNMAP path...

SUSE SLES11 Security Update : xen (SUSE-SU-2020:14557-1)

The remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2020:14557-1 advisory. - A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing...

CVE-2020-27670

An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a denial of service data corruption, cause a data leak, or possibly gain privileges because an AMD IOMMU page-table entry can be half-updated...

JITSploitation III: Subverting Control Flow

Posted by Samuel Groß, Project Zero This three-part series highlights the technical challenges involved in finding and exploiting JavaScript engine vulnerabilities in modern web browsers and evaluates current exploit mitigation technologies. The exploited vulnerability, CVE-2020-9802, was fixed i...

UBUNTU-CVE-2019-17344

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service by leveraging a long-running operation that exists to support restartability of PTE updates...