Astra Linux – Vulnerability in Qemu

A reachable assertion issue was detected in the USB EHCI emulation code of QEMU. This issue can occur during the processing of USB requests due to a faulty handling of the DMA memory map. A malicious privileged user within the guest environment may exploit this flaw to send invalid USB requests,...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm: swap: check for stable address space before operating on the VMA It is possible to encounter a zero entry while traversing the vmas in unusemm, called from the swapoff path. Accessing this zero entry can result in an OOPS...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix potential AB/BA lock issue with buffermutex and mmaplock syzbot detected a potential deadlock between the PCM’s runtime-buffermutex and the mm-mmaplock. This issue arose due to the recent fix related to racy...

Security update for qemu

This update for qemu fixes the following issues: CVE-2025-14876: qemu-kvm: Unbounded allocation in virtio-crypto bsc1255400. CVE-2026-0665: out-of-bounds heap access can lead to a denial of service or potential memory corruption bsc1256484. CVE-2026-2243: incorrect bounds check leads to heap...

CVE-2026-52757

Ghidra before 12.1 contains a heap-use-after-free vulnerability in the decompiler's HighVariable::merge function during the variable merging pass. Attackers can trigger this vulnerability by crafting a binary that causes stale pointers in the HighIntersectTest::highedgemap cache to be dereference...

CVE-2026-10046

Bitdefender Napoca bare-metal hypervisor contains an out-of-bounds write vulnerability in the BIOS INT 0x15 / E820 memory map handler, implemented in napoca/guests/bioshandlers.c. The handler computes a destination offset into the guest RealModeMemory buffer from guest-controlled ES and EDI...

CVE-2026-10046 Out-of-bounds write in Napoca BIOS INT 0x15 E820 memory map handler (VA-13905)

Bitdefender Napoca bare-metal hypervisor contains an out-of-bounds write vulnerability in the BIOS INT 0x15 / E820 memory map handler, implemented in napoca/guests/bioshandlers.c. The handler computes a destination offset into the guest RealModeMemory buffer from guest-controlled ES and EDI...

EUVD-2026-33943

Bitdefender Napoca bare-metal hypervisor contains an out-of-bounds write vulnerability in the BIOS INT 0x15 / E820 memory map handler, implemented in napoca/guests/bioshandlers.c. The handler computes a destination offset into the guest RealModeMemory buffer from guest-controlled ES and EDI...

CVE-2026-10046 Out-of-bounds write in Napoca BIOS INT 0x15 E820 memory map handler (VA-13905)

Bitdefender Napoca bare-metal hypervisor contains an out-of-bounds write vulnerability in the BIOS INT 0x15 / E820 memory map handler, implemented in napoca/guests/bioshandlers.c. The handler computes a destination offset into the guest RealModeMemory buffer from guest-controlled ES and EDI...

EUVD-2026-32483

In the Linux kernel, the following vulnerability has been resolved: fs: afs: revert mmapprepare change Partially reverts commit 9d5403b1036c "fs: convert most other genericfilemmap users to .mmapprepare". This is because the .mmap invocation establishes a refcount, but .mmapprepare is called at a...

CVE-2026-46063

The CVE-2026-46063 issue affects the Linux kernel with x86 shadow stack (shstk) handling of sigreturn. Root cause: during a shadow-stack sigframe read, the kernel previously held the mmap lock while verifying VMA flags to distinguish shadow stack memory. A page fault during this read could trigge...

PT-2026-43743

In the Linux kernel, the following vulnerability has been resolved: arm64/gcs: Fix error handling in arch set shadow stack status alloc gcs returns an error-encoded pointer on failure, which comes from do mmap, not NULL. The current NULL check fails to detect errors, which could lead to using an...

PT-2026-43921

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The SELinux security model for overlayfs allows access if the current task can access the top-level user file and the mounter's credentials are sufficient for the lower-level backing fil...

CVE-2026-43497 fbdev: udlfb: add vm_ops to dlfb_ops_mmap to prevent use-after-free

In the Linux kernel, the following vulnerability has been resolved: fbdev: udlfb: add vmops to dlfbopsmmap to prevent use-after-free dlfbopsmmap uses remappfnrange to map vmalloc framebuffer pages to userspace but sets no vmops on the VMA. This means the kernel cannot track active mmaps. When...

kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. A local attacker with privileges on the host system could exploit a vulnerability in how KVM handles shadow page table entries SPTEs during memory-mapped I/O MMIO operations. By manipulating guest page table entrie...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: fix UAF in hugetlbhandleuserfault The vmalock and hugetlbfaultmutex are removed before handling userfault, and reacquired again after handleuserfault. However, reacquiring the vmalock could lead to a...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: arm64: dts: qcom: monaco: Reserve a full Gunyah metadata region. We have observed spurious “Synchronous External Abort” exceptions ESR=0x96000010 and kernel crashes on Monaco-based platforms. These faults occur due to the kernel...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-021504)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021504 advisory. In the Linux kernel, the following vulnerability has been resolved: ptrace: slightly saner 'getdumpable' logic The 'dumpability' of a task is fundamentally about the...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021539)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021539 advisory. In the Linux kernel, the following vulnerability has been resolved: vfio/type1: prevent underflow of lockedvm via exec When a vfio container is preserved across exec...

ALPINE-CVE-2026-23558

The adjustments made for XSA-379 as well as those subsequently becoming XSA-387 still left a race window, when a HVM or PVH guest does a grant table version change from v2 to v1 in parallel with mapping the status pages via XENMEMaddtophysmap. Some of the status pages may then be freed while...