CVE-2026-77179 Docker Sandboxes guest can write arbitrary macOS host files via a symlink in the virtio-fs stored-path fallback

On macOS, the virtio-fs host server used by Docker Sandboxes improperly follows symlinks when reopening an unlinked file from a stored path. A malicious guest can replace a parent directory with a symlink, escape the shared workspace, and read or modify arbitrary host files as the VMM user,...

CVE-2026-77179: Improper Link Resolution Before File Access

On macOS, the virtio-fs host server used by Docker Sandboxes improperly follows symlinks when reopening an unlinked file from a stored path. A malicious guest can replace a parent directory with a symlink, escape the shared workspace, and read or modify arbitrary host files as the VMM user,...

PT-2026-92317

In handle unmap req of tipc virtio dev.c, there is a possible memory corruption due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...

PT-2026-92018

Name of the Vulnerable Software and Affected Versions Docker Sandboxes versions 0.28.0 through 0.41.x Docker Desktop affected on macOS when Docker VMM is selected Description On macOS, the virtio-fs host server used by Docker Sandboxes and Docker Desktop improperly follows symbolic links when...

OESA-2026-3845 qemu security update

QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed. Security Fixes: An unknown vulnerability exists in QEMU, with no detailed description available at this time.CVE-2026-15264 CVE-2026-16457 is a security vulnerability in QEMU. The specific details of thi...

OESA-2026-3844 qemu security update

QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed. Security Fixes: An unknown vulnerability exists in QEMU, with no detailed description available at this time.CVE-2026-15264 CVE-2026-18054 is a vulnerability in QEMU, details are not yet...

OESA-2026-3843 qemu security update

QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed. Security Fixes: An unknown vulnerability exists in QEMU, with no detailed description available at this time.CVE-2026-15264 CVE-2026-18054 is a vulnerability in QEMU, details are not yet...

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 is able to 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, 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 found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: caifvirtio: The incorrect pointer check in cfvprobe was fixed. delvqs frees virtqueues. Therefore, the pointer cfv-vqtx should be checked for being NULL before calling delvqs. Instead of checking cfv-vdev, this check is necessary...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: swiotlb: Fixed the issue of information leakage due to DMAFROMDEVICE. The problem I’m addressing was discovered during the LTP test covering cve-2018-1000204. A brief description of what happens is as follows: 1 The test case sen...

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 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: Discard packets if the transport changes. If the socket has been de-assigned or assigned to another transport, we must discard any packets received because they are not expected and would cause issues when accessing...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

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 5.15

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

In the Linux kernel, the following vulnerability has been resolved: virtionet: Fixed the warning from napibcacheput. After the commit bdacf3e34945 “net: Use nested-BH locking for napialloccache.” was merged, the following warning began to appear: WARNING: CPU: 5 PID: 1 at net/core/skbuff.c:1451...

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...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: virtioring: Fixed a data race by marking eventtriggered as “racy” for KCSAN. The syzbot reported a data race when accessing eventTriggered. Here is the simplified stack when the issue occurred:...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: crypto: virtio – Add spinlock protection with virtqueue notification When a virtual machine boots with a virtio-crypto PCI device and a built-in backend, run the openssl benchmark command with multiple processes. For example:...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: virtio/vsock: Fixed the acceptqueue memory leak Since the final stages of socket destruction may be delayed, it is possible that virtiotransportrecvlisten will be called after the acceptqueue has been flushed, but before the...