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...

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...

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 (x86/shstk) where a deadlock could occur during sigreturn while popping the shadow stack frame. The root cause was reading the shadow stack with the mmap lock held; a page fault could trigger a recursive mmap lock acquisition, risking deadlock if ...

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

In the Linux kernel, the following vulnerability has been resolved: selinux: fix overlayfs mmap and mprotect access checks The existing SELinux security model for overlayfs is to allow access if the current task is able to access the top level file the "user" file and the mounter's credentials ar...

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: ALSA: pcm: Fix potential AB/BA lock with buffermutex and mmaplock syzbot detected a potential deadlock between the runtime-buffermutex and the mm-mmaplock. This issue arose due to the recent fix related to racy read/writes and...

Astra Linux - уязвимость в 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 erro...

Astra Linux - уязвимость в 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 - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: BPF: Use VMMAP instead of VMALLOC for the ringbuf area. After the commit 2fd3fb0be1d1 “KASAN, vmalloc: Unpoison VMALLOC pages after mapping”, non-VMALLOC mappings will be marked as accessible in getvmareanode when KASAN is enable...

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...

CLSA-2026-1779179460 kernel: Fix of CVE-2026-46333

ptrace: require CAPSYSPTRACE when task has no mm CVE-2026-46333...

CVE-2026-46333

In the Linux kernel, the following vulnerability has been resolved: ptrace: slightly saner 'getdumpable' logic The 'dumpability' of a task is fundamentally about the memory image of the task - the concept comes from whether it can core dump or not - and makes no sense when you don't have an...

CVE-2026-46333

CVE-2026-46333 concerns a logic bug in the Linux kernel’s ptrace access check (__ptrace_may_access). When a thread lacks an MM pointer, ptrace_may_access uses a cached “last dumpable” flag, which can be bypassed by CAP_SYS_PTRACE to override. This can enable local privilege escalation or informat...

PT-2026-41298

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.8 Linux kernel versions prior to 6.18.31 Linux kernel versions prior to 6.12.89 Linux kernel versions prior to 6.6.139 Linux kernel versions prior to 6.1.173 Linux kernel versions prior to 5.15.207 Linux kern...