Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the emactxmemmap function in the net spacemit component. When mapping errors occur, the DMA mappi...

PT-2026-38999

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the mshv vtl component when registering VTL0 memory via 'MSHV ADD VTL0 MEMORY'. The kernel calculates pgmap-vmemmap shift based on the trailing zeros of start pfn and...

Linux Distros Unpatched Vulnerability : CVE-2026-43348

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: mshvvtl: Fix vmemmapshift exceeding MAXFOLIOORDER When registering VTL0 memory via...

CVE-2026-43178

A flaw was found in the Linux kernel's procfs component. A local user, by providing a malformed input buffer during a specific memory mapping query PROCMAPQUERY, can trigger an error in how the kernel manages process memory. This can lead to a double release of memory resources, potentially causi...

kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. A local attacker with privileges on the host system could exploit a vulnerability in how KVM handles shadow page table entries SPTEs during memory-mapped I/O MMIO operations. By manipulating guest page table entrie...

CVE-2026-43257

In the Linux kernel, the following vulnerability has been resolved: media: cx88: Add missing unmap in sndcx88hwparams In error path, add cx88alsadmaunmap to release resource acquired by cx88alsadmamap...

CVE-2026-43129 ima: verify the previous kernel's IMA buffer lies in addressable RAM

In the Linux kernel, the following vulnerability has been resolved: ima: verify the previous kernel's IMA buffer lies in addressable RAM Patch series "Address page fault in imarestoremeasurementlist", v3. When the second-stage kernel is booted via kexec with a limiting command line such as "mem="...

kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. A local attacker with privileges on the host system could exploit a vulnerability in how KVM handles shadow page table entries SPTEs during memory-mapped I/O MMIO operations. By manipulating guest page table entrie...

PT-2026-47382

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the drm/amdgpu/userq component where stale wptr mapping is accessed. This occurs when the wptr obj is unmapped while queue creation is in progress, allowing another...

Integer overflow in `array::ReadWrite::new()` leading to potential memory corruption

In array::ReadWrite::new line 83 of accessor/src/array.rs, let bytes = mem::sizeof:: len can overflow usize when len is very large. In release mode, this silently wraps, potentially making bytes = 0. The mapper then maps with 0 bytes, and subsequent accesses e.g. readvolatileat lead to undefined...

CVE-2026-43008

A flaw was found in the Linux kernel's qixis-fpga driver. This vulnerability is due to incorrect error handling when initializing memory-mapped I/O Input/Output regions. An attacker could potentially exploit this flaw by triggering an error condition, which may lead to an invalid pointer...

net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit()

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SUSE CVE-2026-31658

In the Linux kernel, the following vulnerability has been resolved: net: altera-tse: fix skb leak on DMA mapping error in tsestartxmit When dmamapsingle fails in tsestartxmit, the function returns NETDEVTXOK without freeing the skb. Since NETDEVTXOK tells the stack the packet was consumed, the sk...

CVE-2026-31658

A flaw was found in the Linux kernel's net: altera-tse network driver. When a Direct Memory Access DMA mapping error occurs in the tsestartxmit function, the system fails to free the allocated socket buffer skb. This oversight causes a memory leak with each DMA mapping failure, potentially leadin...

DEBIAN-CVE-2026-31654

In the Linux kernel, the following vulnerability has been resolved: mm/vma: fix memory leak in mmapregion commit 605f6586ecf7 "mm/vma: do not leak memory when .mmapprepare swaps the file" handled the success path by skipping getfile via filedoesntneedget, but missed the error path. When /dev/zero...

DEBIAN-CVE-2026-31602

In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Limit PTP to a single page Commit 391e69143d0a increased CTPTPNUM from 1 to 4 to support 256 playback streams, but the additional pages are not used by the card correctly. The CT20K2 hardware already has multiple...

CVE-2026-31658

In the Linux kernel, the following vulnerability has been resolved: net: altera-tse: fix skb leak on DMA mapping error in tsestartxmit When dmamapsingle fails in tsestartxmit, the function returns NETDEVTXOK without freeing the skb. Since NETDEVTXOK tells the stack the packet was consumed, the sk...

CVE-2026-31589

The CVE-2026-31589 issue affects the Linux kernel memory management in the mm path related to folio_unmap_invalidate. The vulnerability arises when the system calls free_folio() directly, instead of loading the free_folio function pointer after obtaining a mapping reference or lock, potentially l...

CVE-2026-31588

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Use scratch field in MMIO fragment to hold small write values When exiting to userspace to service an emulated MMIO write, copy the to-be-written value to a scratch field in the MMIO fragment if the size of the data...

CVE-2026-31479 drm/xe: always keep track of remap prev/next

In the Linux kernel, the following vulnerability has been resolved: drm/xe: always keep track of remap prev/next During 3D workload, user is reporting hitting: 413.361679 WARNING: drivers/gpu/drm/xe/xevm.c:1217 at vmbindioctlopsunwind+0x1e2/0x2e0 xe, CPU7: vkd3dqueue/9925 413.361944 CPU: 7 UID:...