CVE-2026-46115

A flaw was found in the Linux kernel's block subsystem. The biovecphysmergeable function, which combines physically contiguous memory segments, lacked a check to ensure these segments belonged to the same device page map devpagemap. This omission could result in the incorrect identification of th...

CVE-2026-46115

In the Linux kernel, the following vulnerability has been resolved: block: add pgmap check to biovecphysmergeable biovecphysmergeable is used by the request merge, DMA mapping, and integrity merge paths to decide if two physically contiguous bvec segments can be coalesced into one. It currently h...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the lack of a devpagemap check in the block layer’s biovecphysmergeable function. This...

PT-2026-44238

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.11-1.1 Description The biovec phys mergeable function, used in request merge, DMA mapping, and integrity merge paths, fails to verify if physically contiguous bvec segments belong to different dev pagemaps...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: The issue of losing the “young/dirty” bits during the pagemap scan has been fixed. The function makeuffdwpwppte used to perform these operations was previously executed as follows: c pte = ptepgetptep;...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: check p-vecbuf for NULL When the PAGEMAPSCAN ioctl is invoked with veclen = 0 reaches pagemapscanbackoutrange, kernel panics with null-ptr-deref: 44.936808 Oops: general protection fault, probably for non-canonic...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-000853)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000853 advisory. The pagemapopen function in fs/proc/taskmmu.c in the Linux kernel before 3.19.3, as used in Android 6.0.1 before 2016-03-01, allows local users to obtain sensitive...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002273)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002273 advisory. The pagemapopen function in fs/proc/taskmmu.c in the Linux kernel before 3.19.3, as used in Android 6.0.1 before 2016-03-01, allows local users to obtain sensitive...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001830)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001830 advisory. The pagemapopen function in fs/proc/taskmmu.c in the Linux kernel before 3.19.3, as used in Android 6.0.1 before 2016-03-01, allows local users to obtain sensitive...

PT-2026-6170

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel’s hugetlb subsystem contains an issue where hugetlb pmd shared did not correctly detect shared PMD tables. This occurred because the code switched to using an independen...

Linux Distros Unpatched Vulnerability : CVE-2025-40009

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fs/proc/taskmmu: check p-vecbuf for NULL When the PAGEMAPSCAN ioctl is invoked with veclen = 0 reaches pagemapscanbackoutrange, kernel panics with null-ptr-dere...

SUSE CVE-2025-40009

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: check p-vecbuf for NULL When the PAGEMAPSCAN ioctl is invoked with veclen = 0 reaches pagemapscanbackoutrange, kernel panics with null-ptr-deref: 44.936808 Oops: general protection fault, probably for non-canonic...

EUVD-2025-35071

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: check p-vecbuf for NULL When the PAGEMAPSCAN ioctl is invoked with veclen = 0 reaches pagemapscanbackoutrange, kernel panics with null-ptr-deref: 44.936808 Oops: general protection fault, probably for non-canonic...

CVE-2025-40009

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: check p-vecbuf for NULL When the PAGEMAPSCAN ioctl is invoked with veclen = 0 reaches pagemapscanbackoutrange, kernel panics with null-ptr-deref: 44.936808 Oops: general protection fault, probably for non-canonic...

UBUNTU-CVE-2025-40009

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: check p-vecbuf for NULL When the PAGEMAPSCAN ioctl is invoked with veclen = 0 reaches pagemapscanbackoutrange, kernel panics with null-ptr-deref: 44.936808 Oops: general protection fault, probably for non-canonic...

CVE-2025-40009 fs/proc/task_mmu: check p->vec_buf for NULL

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: check p-vecbuf for NULL When the PAGEMAPSCAN ioctl is invoked with veclen = 0 reaches pagemapscanbackoutrange, kernel panics with null-ptr-deref: 44.936808 Oops: general protection fault, probably for non-canonic...

CVE-2025-40009

CVE-2025-40009 : In the Linux kernel, a null pointer dereference can occur in the PAGEMAP_SCAN path when vec_len = 0 is used. The root cause is an unchecked p->vec_buf in the PAGEMAP_SCAN flow, which leads to dereferencing NULL in pagemap_scan_backout_range(). The issue is fixed by explicitly ...

CVE-2025-40009 fs/proc/task_mmu: check p->vec_buf for NULL

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: check p-vecbuf for NULL When the PAGEMAPSCAN ioctl is invoked with veclen = 0 reaches pagemapscanbackoutrange, kernel panics with null-ptr-deref: 44.936808 Oops: general protection fault, probably for non-canonic...

PT-2025-42778

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.17.0-rc6 Description The Linux kernel contains a flaw within the fs/proc/task mmu component. Specifically, a null pointer dereference can occur in pagemap scan backout range when the PAGEMAP SCAN ioctl is calle...

Linux munmap() Race Condition / Use-After-Free

Linux munmap has a race condition with pagemapread that leads to a page use-after-free condition...