CVE-2026-6426 Qemu-kvm: vhost inflight migration vmstate integer type mismatch causes out-of-bounds access

A type mismatch vulnerability was found in QEMU's vhost inflight migration VMState handling. The destination buffer size is stored as a uint64t but read by the VMSVBUFFER load path as a signed int32t. On little-endian hosts, a crafted incoming migration state with bit 31 set causes the value to b...

CVE-2026-6426

A type mismatch vulnerability was found in QEMU's vhost inflight migration VMState handling. The destination buffer size is stored as a uint64t but read by the VMSVBUFFER load path as a signed int32t. On little-endian hosts, a crafted incoming migration state with bit 31 set causes the value to b...

CVE-2026-6426

QEMU's vhost inflight migration VMState handling is affected by a type‑mismatch in the destination buffer size: it is stored as uint64_t but read as signed int32_t. On little‑endian hosts, a crafted incoming migration state with bit 31 set can become negative and be implicitly converted to a very...

CVE-2026-53090 vulnerabilities

Vulnerabilities for packages: linux-qemu-melange, linux-gcp, linux-qemu...

GHSA-H443-HX93-M7QC vulnerabilities

Vulnerabilities for packages: linux-qemu-melange, linux-gcp, linux-qemu...

CVE-2026-53078 vulnerabilities

Vulnerabilities for packages: linux-qemu-melange, linux-gcp, linux-qemu...

GHSA-PWR6-CVF5-35F3 vulnerabilities

Vulnerabilities for packages: linux-qemu-melange, linux-gcp, linux-qemu...

GHSA-QHVV-4MW5-PXH3 vulnerabilities

Vulnerabilities for packages: linux-aws, linux-azure, linux-gcp, linux-qemu, linux-vmware...

CVE-2026-63623

A flaw was found in libvirt. During storage volume clone or convert operations, newly created volume images were temporarily world-readable. This was caused by the qemu-img utility running with overly permissive file creation settings, allowing any local user to read the full guest disk contents...

DEBIAN-CVE-2026-63623

A flaw was found in libvirt. During storage volume clone or convert operations, newly created volume images were temporarily world-readable. This was caused by the qemu-img utility running with overly permissive file creation settings, allowing any local user to read the full guest disk contents...

CVE-2026-63623

A flaw was found in libvirt. During storage volume clone or convert operations, newly created volume images were temporarily world-readable. This was caused by the qemu-img utility running with overly permissive file creation settings, allowing any local user to read the full guest disk contents...

UBUNTU-CVE-2026-63623

A flaw was found in libvirt. During storage volume clone or convert operations, newly created volume images were temporarily world-readable. This was caused by the qemu-img utility running with overly permissive file creation settings, allowing any local user to read the full guest disk contents...

CVE-2026-63623

A flaw was found in libvirt. During storage volume clone or convert operations, newly created volume images were temporarily world-readable. This was caused by the qemu-img utility running with overly permissive file creation settings, allowing any local user to read the full guest disk contents...

CVE-2026-63623 Libvirt: information disclosure via world-readable storage volume images during clone/convert

A flaw was found in libvirt. During storage volume clone or convert operations, newly created volume images were temporarily world-readable. This was caused by the qemu-img utility running with overly permissive file creation settings, allowing any local user to read the full guest disk contents...

CVE-2026-63623

CVE-2026-63623 affects libvirt during storage volume clone or convert operations, where qemu-img creates new volume images with overly permissive file permissions, temporarily making them world-readable and allowing local users to read the full guest disk contents. This could lead to sensitive in...

CVE-2026-63623

A flaw was found in libvirt. During storage volume clone or convert operations, newly created volume images were temporarily world-readable. This was caused by the qemu-img utility running with overly permissive file creation settings, allowing any local user to read the full guest disk contents...

Astra Linux – Vulnerability in Qemu

A flaw was discovered in QEMU. When reading input audio from the virtio-snd device’s input callback, the virtiosndpcmincb function did not check whether the iov could accommodate the data buffer, potentially leading to a heap out-of-bounds write. This issue persists due to an incomplete fix for...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: x86/vmware: Fixed hypercall clobbering issues Fedora QA reported the following panic: BUG: Unable to handle a page fault for address: 0000000040003e54 PF: Supervisor write access in kernel mode PF: Errorcode0x0002 – Not-presen...

Astra Linux – Vulnerability in Qemu

A flaw was discovered in QEMU. This vulnerability allows a local attacker within a guest virtual machine to write data beyond its allocated memory. This occurs when the cpuphysicalmemorymap function returns a shorter length than expected, resulting in an out-of-bounds write. Successful exploitati...

Astra Linux – Vulnerability in Qemu

An integer overflow vulnerability was discovered in the virtio-snd device through PCMINFO requests from the guest. A malicious guest can provide out-of-bounds stream counts, potentially leading to unbounded memory allocation on the host and a denial of service condition...