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 an issue with the switch case statement in the loongsongpufixupdmahang function within LoongArch...

PT-2026-44279

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the LoongArch architecture where the loongson gpu fixup dma hang function may fail to handle certain switch cases. This can lead to an Address Detection Error ADE...

PT-2026-44265

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the libwx network component where a Virtual Function VF attempts to access the WX CFG PORT ST register. Because this is a Physical Function PF restricted register, the...

Linux Distros Unpatched Vulnerability : CVE-2026-45973

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - RDMA/mlx5: Fix UMR hang in LAG error state unload During firmware reset in LAG mode, a race condition causes the driver to hang indefinitely while waiting for U...

CVE-2026-45953

A flaw was found in the Linux kernel's RAID5 module. When a low-level bitmap llbitmap bit state is unwritten in a degraded array, a missing check during write operations can cause the system to enter an infinite loop. This can lead to an I/O hang, effectively resulting in a Denial of Service DoS...

CVE-2026-45973

A flaw was found in the Linux kernel's RDMA/mlx5 driver. A race condition during firmware reset in Link Aggregation Group LAG mode can cause the driver to hang indefinitely while waiting for Unregister Memory Region UMR completion during device unload. This can lead to a denial of service, making...

EUVD-2026-32283

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Sync interrupt shadow to cached vmcb12 after VMRUN of L2 After VMRUN in guest mode, nestedsynccontrolfromvmcb02 syncs fields written by the CPU from vmcb02 to the cached vmcb12. This is because the cached vmcb12 is use...

EUVD-2026-32257

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix UMR hang in LAG error state unload During firmware reset in LAG mode, a race condition causes the driver to hang indefinitely while waiting for UMR completion during device unload. See 1. In LAG mode the bond devic...

EUVD-2026-32346

In the Linux kernel, the following vulnerability has been resolved: PCI/P2PDMA: Release per-CPU pgmap ref when vminsertpage fails When vminsertpage fails in p2pmemallocmmap, p2pmemallocmmap doesn't invoke percpurefput to free the per-CPU ref of pgmap acquired after genpoolallocowner, and...

CVE-2026-45973

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix UMR hang in LAG error state unload During firmware reset in LAG mode, a race condition causes the driver to hang indefinitely while waiting for UMR completion during device unload. See 1. In LAG mode the bond devic...

CVE-2026-45953

In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix IO hang with degraded array with llbitmap When llbitmap bit state is still unwritten, any new write should force rcw, as bitmapops-blockssynced is checked in handlestripedirtying. However, later the same check is...

UBUNTU-CVE-2026-45987

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Sync interrupt shadow to cached vmcb12 after VMRUN of L2 After VMRUN in guest mode, nestedsynccontrolfromvmcb02 syncs fields written by the CPU from vmcb02 to the cached vmcb12. This is because the cached vmcb12 is use...

CVE-2026-45973

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix UMR hang in LAG error state unload During firmware reset in LAG mode, a race condition causes the driver to hang indefinitely while waiting for UMR completion during device unload. See 1. In LAG mode the bond devic...

UBUNTU-CVE-2026-45973

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix UMR hang in LAG error state unload During firmware reset in LAG mode, a race condition causes the driver to hang indefinitely while waiting for UMR completion during device unload. See 1. In LAG mode the bond devic...

UBUNTU-CVE-2026-46089

In the Linux kernel, the following vulnerability has been resolved: zram: do not forget to endio for partial discard requests As reported by Qu Wenruo and Avinesh Kumar, the following getconf PAGESIZE 65536 blkdiscard -p 4k /dev/zram0 takes literally forever to complete. zram doesn't support...

CVE-2026-45973 RDMA/mlx5: Fix UMR hang in LAG error state unload

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix UMR hang in LAG error state unload During firmware reset in LAG mode, a race condition causes the driver to hang indefinitely while waiting for UMR completion during device unload. See 1. In LAG mode the bond devic...

CVE-2026-45953

CVE-2026-45953 affects the Linux kernel’s MD RAID5 subsystem. The root cause is a missing check in need_this_block() when an llbitmap bit is unwritten in a degraded array, which can cause stripe handling to deadlock and trigger an I/O hang (DoS-like impact). Public sources describe the issue and ...

CVE-2026-45953 md/raid5: fix IO hang with degraded array with llbitmap

In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix IO hang with degraded array with llbitmap When llbitmap bit state is still unwritten, any new write should force rcw, as bitmapops-blockssynced is checked in handlestripedirtying. However, later the same check is...

CVE-2026-45953

In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix IO hang with degraded array with llbitmap When llbitmap bit state is still unwritten, any new write should force rcw, as bitmapops-blockssynced is checked in handlestripedirtying. However, later the same check is...

CVE-2026-45880

CVE-2026-45880 – Linux kernel PCI/P2PDMA issue : When vm_insert_page() fails during p2pmem_alloc_mmap(), the code does not release the per-CPU ref for pgmap acquired after gen_pool_alloc_owner(), causing memunmap_pages() to hang when removing a PCI device. The patch fixes this by adding the missi...