1113 matches found
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 the Linux kernel that stems from a problem with the mm component's handling of static and dynamic page table folding, resulting in random oop...
CVE-2024-42233
In the Linux kernel, a vulnerability was fixed by replacing pteoffsetmap with pteoffsetmapnolock in the filemapfaultrecheckptenone function. The original use of pteoffsetmap relied on a potentially stale page table lock PTL, which could lead to a use-after-free UAF condition if the page table was...
SUSE CVE-2024-42233
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...
DEBIAN-CVE-2024-42233
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...
UBUNTU-CVE-2024-42233
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-2024-42233 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-2024-40948
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-2024-40915
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...