CVE-2024-42233 filemap: replace pte_offset_map() with pte_offset_map_nolock()

In the Linux kernel, the following vulnerability has been resolved: filemap: replace pteoffsetmap with pteoffsetmapnolock The vmf-ptl in filemapfaultrecheckptenone is still set from handleptefault. But at the same time, we did a pteunmapvmf-pte. After a pteunmapvmf-pte unmap and rcureadunlock, th...

CVE-2024-42233 filemap: replace pte_offset_map() with pte_offset_map_nolock()

In the Linux kernel, the following vulnerability has been resolved: filemap: replace pteoffsetmap with pteoffsetmapnolock The vmf-ptl in filemapfaultrecheckptenone is still set from handleptefault. But at the same time, we did a pteunmapvmf-pte. After a pteunmapvmf-pte unmap and rcureadunlock, th...

CVE-2024-33027

Memory corruption can occur when arbitrary user-space app gains kernel level privilege to modify DDR memory by corrupting the GPU page table...

CVE-2024-33027

CVE-2024-33027 describes memory corruption that can occur when a local, unprivileged user-space application gains kernel-level privileges by corrupting the GPU page table to modify DDR memory. Public sources characterize the impact as a local attack with high confidentiality, integrity, and avail...

UBUNTU-CVE-2024-41021

In the Linux kernel, the following vulnerability has been resolved: s390/mm: Fix VMFAULTHWPOISON handling in doexception There is no support for HWPOISON, MEMORYFAILURE, or ARCHHASCOPYMC on s390. Therefore we do not expect to see VMFAULTHWPOISON in doexception. However, since commit af19487f00f3...

SUSE CVE-2021-47623

In the Linux kernel, the following vulnerability has been resolved: powerpc/fixmap: Fix VM debug warning on unmap Unmapping a fixmap entry is done by calling setfixmap with FIXMAPPAGECLEAR as flags. Today, powerpc setfixmap calls mapkernelpage. mapkernelpage is not happy when called a second time...

CVE-2024-40915

A flaw was found in the kernelmappages function in RISC-V in the Linux Kernel, which is incorrectly designed to sleep in atomic contexts. This function cleared the valid bit in page table entries for deallocated pages to detect illegal memory accesses, but it utilized setmemory, which acquires a...

DEBIAN-CVE-2021-47623

In the Linux kernel, the following vulnerability has been resolved: powerpc/fixmap: Fix VM debug warning on unmap Unmapping a fixmap entry is done by calling setfixmap with FIXMAPPAGECLEAR as flags. Today, powerpc setfixmap calls mapkernelpage. mapkernelpage is not happy when called a second time...

UBUNTU-CVE-2021-47623

In the Linux kernel, the following vulnerability has been resolved: powerpc/fixmap: Fix VM debug warning on unmap Unmapping a fixmap entry is done by calling setfixmap with FIXMAPPAGECLEAR as flags. Today, powerpc setfixmap calls mapkernelpage. mapkernelpage is not happy when called a second time...

SUSE CVE-2024-40948

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: fix crash on ZONEDEVICE Not all pages may apply to pgtable check. One example is ZONEDEVICE pages: they map PFNs directly, and they don't allocate pageext at all even if there's struct page around. One may...

DEBIAN-CVE-2024-40948

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: fix crash on ZONEDEVICE Not all pages may apply to pgtable check. One example is ZONEDEVICE pages: they map PFNs directly, and they don't allocate pageext at all even if there's struct page around. One may...

CVE-2024-40948

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: fix crash on ZONEDEVICE Not all pages may apply to pgtable check. One example is ZONEDEVICE pages: they map PFNs directly, and they don't allocate pageext at all even if there's struct page around. One may...

UBUNTU-CVE-2024-40918

In the Linux kernel, the following vulnerability has been resolved: parisc: Try to fix random segmentation faults in package builds PA-RISC systems with PA8800 and PA8900 processors have had problems with random segmentation faults for many years. Systems with earlier processors are much more...

UBUNTU-CVE-2024-40948

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: fix crash on ZONEDEVICE Not all pages may apply to pgtable check. One example is ZONEDEVICE pages: they map PFNs directly, and they don't allocate pageext at all even if there's struct page around. One may...

UBUNTU-CVE-2024-40915

In the Linux kernel, the following vulnerability has been resolved: riscv: rewrite kernelmappages to fix sleeping in invalid context kernelmappages is a debug function which clears the valid bit in page table entry for deallocated pages to detect illegal memory accesses to freed pages. This...

CVE-2024-40948 mm/page_table_check: fix crash on ZONE_DEVICE

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: fix crash on ZONEDEVICE Not all pages may apply to pgtable check. One example is ZONEDEVICE pages: they map PFNs directly, and they don't allocate pageext at all even if there's struct page around. One may...

CVE-2024-40948

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: fix crash on ZONEDEVICE Not all pages may apply to pgtable check. One example is ZONEDEVICE pages: they map PFNs directly, and they don't allocate pageext at all even if there's struct page around. One may...

CVE-2024-40915

The CVE-2024-40915 issue affects the Linux kernel on riscv, where __kernel_map_pages() (a debugging page-table helper) used __set_memory() to flip the valid bit of page-table entries. __set_memory() takes init_mm’s semaphore and can sleep, but __kernel_map_pages() may be called in atomic context,...

CVE-2024-40915 riscv: rewrite __kernel_map_pages() to fix sleeping in invalid context

In the Linux kernel, the following vulnerability has been resolved: riscv: rewrite kernelmappages to fix sleeping in invalid context kernelmappages is a debug function which clears the valid bit in page table entry for deallocated pages to detect illegal memory accesses to freed pages. This...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel that stems from a crash in the mm/pagetablecheck component when handling ZONEDEVICE...