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 virtiobt driver. In this driver, the virtbtrxhandle function does not check whether the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtio: Packed data – fix an unmap leak for the indirect desc table When usedmaapi and premapped are set to true, the dounmap operation is not executed. As a result, the vringunmapextrapacked function is not called by...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: swiotlb: Fixed the issue of double-allocation of slots due to incorrect alignment handling. The commit bbb73a103fbb “swiotlb: fix a braino in the alignment check fix” addressed the issue in commit 0eee5ae10256 “swiotlb: fix sl...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: vdpa/mlx5: added validation for the VIRTIONETCTRLMQVQPAIRSSET command When the control vq receives a VIRTIONETCTRLMQVQPAIRSSET command request from the driver, there is currently no validation of the number of queue pairs to be...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtiopmem: Added the missing REQOPWRITE for flushing bio. When performing mkfs.xfs on a pmem device, the following warning was encountered: ------------ Cut here ------------ Warning: CPU: 2, PID: 384; at block/blk-core.c:751:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtio: Use virtiodeviceready in virtiodevicerestore After waking up a suspended VM, the kernel prints the following trace for virtio drivers that do not directly call virtiodeviceready in .restore: PM: suspend exit irq 22: nobod...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: i2c: virtio: Disable timeout handling If a timeout occurs, it can lead to incorrect data on the I2C bus and/or memory corruption in the guest, since the device can still be operating on the buffers it was given, even after the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtio-blk: Avoid use-after-free on suspend/resume In virtblkinithctx, hctx-userdata is set to vq. However, vq is freed during suspension and reallocated during resume. As a result, hctx-userdata becomes invalid after resume,...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtiovdpa: Building affinity masks conditionally We were trying to build the affinity mask using createaffinitymasks unconditionally, which could lead to several issues: - The affinity mask is not used for parent processes witho...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtio-crypto: fixed a memory leak in virtiocryptoalgskcipherclosesession The variable 'vcctrlreq' is allocated in virtiocryptoalgskcipherclosesession, and should be freed in the invalid ctrlstatus-status error handling case...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtionet: fixed device mismatch in devmkzalloc/devmkfree The initial rsshdr allocation uses virtiodevice-device, but virtnetsetqueues frees resources using netdevice-device. This device mismatch causes the following devres...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Fixed the issue where the dmabuf was not unpinned in the error-prone preparefb function. Corrected the error handling in preparefb to prevent resource leaks when an error occurs...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtio-net: Fixed pages leaking when building skb in big mode. We attempt to use buildskb if there is sufficient “tailroom”. However, we forget to release the unused pages that are chained via private in big mode, which can lead ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtio-net: A overflow occurred within the virtnetrqalloc function. When a fragment receives only one page, it may lead to regressions in the virtual machine. This issue is particularly significant if the sysctl...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtio-vdpa: Fixed a cpumask memory leak in virtiovdpafindvqs Free the cpumask allocated by createaffinitymasks before returning from the function...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtio-pci: The result size returned for the admin command completion has been corrected. The result size returned by virtiopciadmindevpartsget is 8 bytes larger than the actual result data size. This occurs because the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: lib/ioviter: fixed to increase the refcount of non-slab folio pages. When testing EROFS file-backed mounting over v9fs on Qemu, I encountered a UAF Use-after-Allocation issue with folio pages. The page sanity check reported the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtio-pci: Check if isavq is NULL Bug In the virtiopcicommon.c function vpdelvqs, vpdev-isavq is used to determine whether it is an admin virtqueue. However, this variable may be empty. In some installations, virtiopcilegacy doe...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtio-net: Zeroed unused hash fields When a GSO tunnel is negotiated, the virtionethdrtnlfromskb function attempts to initialize the tunnel metadata. However, it forgets to zero the unused rxhash fields. This could lead to...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021540)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021540 advisory. In the Linux kernel, the following vulnerability has been resolved: virtio/vsock: Fix acceptqueue memory leak As the final stages of socket destruction may be delaye...