kernel: Buffer overflow in drivers/xen/sys-hypervisor.c

A flaw was found in the Linux kernel. A buffer overflow vulnerability exists in the Xen hypervisor driver drivers/xen/sys-hypervisor.c. This flaw occurs because the HYPERVISORxenversionXENVERbuildid function returns a build ID that is not properly null-terminated. When the buildidshow function...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: qca – fixed an issue where information was leaked when fetching the fw build id. Added missing sanity checks and moved the 255-byte build-id buffer off the stack to prevent the leakage of stack data through debugfs,...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: procfs: Avoid fetching the build ID while holding the VMA lock. Fix the PROCMAPQUERY to fetch the optional build ID only after releasing the mmaplock or the per-VMA lock, whichever was used to lock the VMA, to prevent deadlock...

kernel: Buffer overflow in drivers/xen/sys-hypervisor.c

A flaw was found in the Linux kernel. A buffer overflow vulnerability exists in the Xen hypervisor driver drivers/xen/sys-hypervisor.c. This flaw occurs because the HYPERVISORxenversionXENVERbuildid function returns a build ID that is not properly null-terminated. When the buildidshow function...

kernel: Buffer overflow in drivers/xen/sys-hypervisor.c

A flaw was found in the Linux kernel. A buffer overflow vulnerability exists in the Xen hypervisor driver drivers/xen/sys-hypervisor.c. This flaw occurs because the HYPERVISORxenversionXENVERbuildid function returns a build ID that is not properly null-terminated. When the buildidshow function...

CVE-2026-44573 Next.js: Middleware / Proxy bypass in Pages Router applications using i18n

Next.js is a React framework for building full-stack web applications. From 12.2.0 to before 15.5.16 and 16.2.5, Applications using the Pages Router with i18n configured and middleware/proxy-based authorization can allow unauthorized access to protected page data through locale-less...

SUSE CVE-2026-43178

In the Linux kernel, the following vulnerability has been resolved: procfs: fix possible double mmput in doprocmapquery When user provides incorrectly sized buffer for build ID for PROCMAPQUERY we return with -ENAMETOOLONG error. After recent changes this condition happens later, after we unlocke...

EUVD-2026-27738

In the Linux kernel, the following vulnerability has been resolved: procfs: fix possible double mmput in doprocmapquery When user provides incorrectly sized buffer for build ID for PROCMAPQUERY we return with -ENAMETOOLONG error. After recent changes this condition happens later, after we unlocke...

CVE-2026-43178

In the Linux kernel, the procfs component has a vulnerability in do_procmap_query() that can trigger a double mmput() of an mm_struct when a user passes an incorrectly sized buffer for PROCMAP_QUERY's build ID. The root cause is a change that defers cleanup after unlocking mmap_lock and per-VMA, ...

PT-2026-37518

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the procfs component within the do procmap query function. When a user provides an incorrectly sized buffer for the build ID during a PROCMAP QUERY, the system returns a...

CVE-2026-31786

A flaw was found in the Linux kernel. A buffer overflow vulnerability exists in the Xen hypervisor driver drivers/xen/sys-hypervisor.c. This flaw occurs because the HYPERVISORxenversionXENVERbuildid function returns a build ID that is not properly null-terminated. When the buildidshow function...

ALPINE-CVE-2026-31786

In the Linux kernel, the following vulnerability has been resolved: Buffer overflow in drivers/xen/sys-hypervisor.c The build id returned by HYPERVISORxenversionXENVERbuildid is neither NUL terminated nor a string. The first causes a buffer overflow as sprintf in buildidshow will read and copy ti...

CVE-2026-31786 Buffer overflow in drivers/xen/sys-hypervisor.c

In the Linux kernel, the following vulnerability has been resolved: Buffer overflow in drivers/xen/sys-hypervisor.c The build id returned by HYPERVISORxenversionXENVERbuildid is neither NUL terminated nor a string. The first causes a buffer overflow as sprintf in buildidshow will read and copy ti...

CVE-2026-31786

In the Linux kernel, the following vulnerability has been resolved: Buffer overflow in drivers/xen/sys-hypervisor.c The build id returned by HYPERVISORxenversionXENVERbuildid is neither NUL terminated nor a string. The first causes a buffer overflow as sprintf in buildidshow will read and copy ti...

CVE-2026-31786

The CVE-2026-31786 issue affects the Linux kernel in drivers/xen/sys-hypervisor.c, where HYPERVISOR_xen_version(XENVER_build_id) returned a build_id that is not NUL-terminated, causing a buffer overflow via sprintf in buildid_show. The root cause is that the build_id was not treated as a proper s...

CVE-2026-31786

In the Linux kernel, the following vulnerability has been resolved: Buffer overflow in drivers/xen/sys-hypervisor.c The build id returned by HYPERVISORxenversionXENVERbuildid is neither NUL terminated nor a string. The first causes a buffer overflow as sprintf in buildidshow will read and copy ti...

SUSE CVE-2026-23199

In the Linux kernel, the following vulnerability has been resolved: procfs: avoid fetching build ID while holding VMA lock Fix PROCMAPQUERY to fetch optional build ID only after dropping mmaplock or per-VMA lock, whichever was used to lock VMA under question, to avoid deadlock reported by syzbot:...

CVE-2026-23199

In the Linux kernel, the following vulnerability has been resolved: procfs: avoid fetching build ID while holding VMA lock Fix PROCMAPQUERY to fetch optional build ID only after dropping mmaplock or per-VMA lock, whichever was used to lock VMA under question, to avoid deadlock reported by syzbot:...

CVE-2026-23199

In the Linux kernel, the following vulnerability has been resolved: procfs: avoid fetching build ID while holding VMA lock Fix PROCMAPQUERY to fetch optional build ID only after dropping mmaplock or per-VMA lock, whichever was used to lock VMA under question, to avoid deadlock reported by syzbot:...

UBUNTU-CVE-2026-23199

In the Linux kernel, the following vulnerability has been resolved: procfs: avoid fetching build ID while holding VMA lock Fix PROCMAPQUERY to fetch optional build ID only after dropping mmaplock or per-VMA lock, whichever was used to lock VMA under question, to avoid deadlock reported by syzbot:...