CVE-2026-89593

In the Linux kernel, the following vulnerability has been resolved: hugetlb: only adjust reservation during unmapping if mapcount is 0 Since df7a6d1f6405, unmaphugepagerange can adjust reservations. In the case of folio mapped in both a parent and a child, if the parent unmaps the range first, th...

CVE-2026-89593 hugetlb: only adjust reservation during unmapping if mapcount is 0

In the Linux kernel, the following vulnerability has been resolved: hugetlb: only adjust reservation during unmapping if mapcount is 0 Since df7a6d1f6405, unmaphugepagerange can adjust reservations. In the case of folio mapped in both a parent and a child, if the parent unmaps the range first, th...

CVE-2026-89593

CVE-2026-89593 affects the Linux kernel hugetlb subsystem. Since commit df7a6d1f6405, the function __unmap_hugepage_range can adjust page reservations during unmapping. The vulnerability arises when a folio is mapped in both a parent and a child process: if the parent unmaps the range first, the ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: fs/proc: taskmmu.c: Do not read mapcount for migration entries The syzbot reported the following bug: Kernel bug at include/linux/page-flags.h: 785 Invalid opcode: 0000 1 PREEMPT SMP KASAN CPU: 1; PID: 4392; Comm: syz-executor560...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm: Do not attempt to NUMA-migrate COW pages that have other uses. Oded Gabbay reported that enabling NUMA balancing causes corruption in his Gaudi accelerator test. He described the situation as follows: “All the details are in...

SUSE CVE-2026-63950

In the Linux kernel, the following vulnerability has been resolved: mm/rmap: initialize nrpages to 1 at loop start in trytounmapone Initialize nrpages to 1 at the start of each loop iteration, like folioreferencedone does. Without this, nrpages computed by a previous foliounmapptebatch call can b...

CVE-2026-63950

In the Linux kernel, the following vulnerability has been resolved: mm/rmap: initialize nrpages to 1 at loop start in trytounmapone Initialize nrpages to 1 at the start of each loop iteration, like folioreferencedone does. Without this, nrpages computed by a previous foliounmapptebatch call can b...

PT-2026-61267

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the try to unmap one function within the memory management subsystem. The nr pages variable is not properly initialized at the start of each loop iteration. This allow...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-013351)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013351 advisory. In the Linux kernel, the following vulnerability has been resolved: fs/proc: taskmmu.c: don't read mapcount for migration entry The syzbot reported the below BUG:...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001305)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001305 advisory. An issue was discovered in splithugepmd in mm/hugememory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access becau...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-004060)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004060 advisory. An issue was discovered in splithugepmd in mm/hugememory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access becau...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987597)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987597 advisory. In the Linux kernel, the following vulnerability has been resolved: fs/proc: taskmmu.c: don't read mapcount for migration entry The syzbot reported the below BUG:...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987599)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987599 advisory. In the Linux kernel, the following vulnerability has been resolved: mm: don't try to NUMA-migrate COW pages that have other uses Oded Gabbay reports that enabling NU...

Linux Distros Unpatched Vulnerability : CVE-2020-29368

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An issue was discovered in splithugepmd in mm/hugememory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access...

CVE-2024-57883

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: independent PMD page table shared count The folio refcount may be increased unexpectly through trygetfolio by caller such as splithugepages. In hugepmdunshare, we use refcount to check whether a pmd page table is...

PT-2025-3608

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.13.0-rc2master+ Description The issue is related to the Linux kernel's handling of huge page tables. The folio refcount may be increased unexpectedly through try get folio by callers such as split huge pages...

SUSE CVE-2022-48802

In the Linux kernel, the following vulnerability has been resolved: fs/proc: taskmmu.c: don't read mapcount for migration entry The syzbot reported the below BUG: kernel BUG at include/linux/page-flags.h:785! invalid opcode: 0000 1 PREEMPT SMP KASAN CPU: 1 PID: 4392 Comm: syz-executor560 Not...

DEBIAN-CVE-2022-48802

In the Linux kernel, the following vulnerability has been resolved: fs/proc: taskmmu.c: don't read mapcount for migration entry The syzbot reported the below BUG: kernel BUG at include/linux/page-flags.h:785! invalid opcode: 0000 1 PREEMPT SMP KASAN CPU: 1 PID: 4392 Comm: syz-executor560 Not...

UBUNTU-CVE-2022-48802

In the Linux kernel, the following vulnerability has been resolved: fs/proc: taskmmu.c: don't read mapcount for migration entry The syzbot reported the below BUG: kernel BUG at include/linux/page-flags.h:785! invalid opcode: 0000 1 PREEMPT SMP KASAN CPU: 1 PID: 4392 Comm: syz-executor560 Not...

UBUNTU-CVE-2022-48797

In the Linux kernel, the following vulnerability has been resolved: mm: don't try to NUMA-migrate COW pages that have other uses Oded Gabbay reports that enabling NUMA balancing causes corruption with his Gaudi accelerator test load: "All the details are in the bug, but the bottom line is that...