PT-2026-44246

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the virtio bt module, the virtbt rx work function calls skb putskb, len using a length value obtained from virtqueue get buf without validating it against the buffer size exposed to t...

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 lack of clamping on the rx length in the Bluetooth virtiobt module. This vulnerability may le...

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: 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 Qemu

A flaw was discovered in qemu. A host privilege escalation issue was identified in the virtio-fs shared file system daemon, where a privileged guest user can create a device-specific special file in the shared directory and use it to gain read/write access to host devices...

Astra Linux – Vulnerability in Linux 5.10

An integer overflow flaw was discovered in the Linux kernel’s virtio device driver code, where a user triggers the vhostvdpaconfigvalidate function. This flaw allows a local user to crash the system or potentially escalate their privileges on the system...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: - Do not allow gsosize to be set to GSOBYFRAGS. - A missing check in virtionethdrtoskb allowed syzbot to crash kernels again. Do not allow gsosize to be set to GSOBYFRAGS 0xffff, because this magic value is used by the kernel....

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: hwrng: virtio – Fixed a race condition related to dataavail and actual data. The virtio rng device initiates a new entropy request whenever the data available becomes zero. When a new request occurs at the end of a read...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Ensure that objs is not NULL in virtiogpuarrayputfree. If virtiogpuobjectshmeminit fails e.g., due to fault injection, as happened in the bug report by syzbot, virtiogpuarrayputfree might be called with objs being NUL...

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 Qemu

An information disclosure vulnerability was discovered in the virtio vhost-user GPU device vhost-user-gpu of QEMU in versions up to and including 6.0. The flaw resides in the virglcmdgetcapsetinfo function in contrib/vhost-user-gpu/virgl.c, and can occur due to the reading of uninitialized memory...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: virtionet: Fixed an issue with error unwinding of XDP initialization. When initializing XDP in virtnetopen, some rq xdp initializations may encounter errors, resulting in failed network device openings. However, previous rqs have...

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, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: proc/vmcore: The issue of clearing the user buffer was fixed by properly using clearuser. To clear a user buffer, we cannot simply use memset; we must use clearuser. When using a virtio-mem device that registers a vmcorecb and ha...

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, Linux

In the Linux kernel, the following vulnerability has been resolved: virtionet: Fixed the issue with xdprxqinfo after suspend/resume. The following sequence currently causes a driver bug warning when using virtionet: bash ip link set eth0 up echo mem /sys/power/state or e.g. rtcwake -s 10 -m mem i...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

A flaw was discovered in vringhkiovadvance in drivers/vhost/vringh.c, located in the host side of a virtio ring within the Linux Kernel. This issue may lead to a denial of service from the guest to the host through zero-length descriptors...

Astra Linux – Vulnerability in Qemu

A double-free vulnerability was identified in QEMU virtio devices virtio-gpu, virtio-serial-bus, virtio-crypto. The memreentrancyguard flag does not provide sufficient protection against reentrancy issues related to DMA operations. This vulnerability could allow a malicious privileged guest user ...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: virtio-blk: Fixed a memory leak during the suspend/resume procedure. The vblk-vqs should be freed before calling initvqs in virtblkrestore...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: PCI: Fixed pcideviceispresent for VFs by checking PF. pcideviceispresent previously did not work for VFs because it read the Vendor and Device ID, both of which are 0xffff for VFs, implying that these devices are not present...