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 mm/rmap: initialize nr_pages to 1 at loop start in try_to_unmap_one

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 mm/rmap: initialize nr_pages to 1 at loop start in try_to_unmap_one

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-2026-31715

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix UAF caused by decrementing sbi-nrpages in f2fswriteendio The xfstests case "generic/107" and syzbot have both reported a NULL pointer dereference. The concurrent scenario that triggers the panic is as follows:...

CVE-2026-31715

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix UAF caused by decrementing sbi-nrpages in f2fswriteendio The xfstests case "generic/107" and syzbot have both reported a NULL pointer dereference. The concurrent scenario that triggers the panic is as follows:...

Linux Distros Unpatched Vulnerability : CVE-2026-31648

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mm: filemap: fix nrpages calculation overflow in filemapmappages When running stress-ng on my Arm64 machine with v7.0-rc3 kernel, I encountered some very stran...

SUSE CVE-2026-31648

In the Linux kernel, the following vulnerability has been resolved: mm: filemap: fix nrpages calculation overflow in filemapmappages When running stress-ng on my Arm64 machine with v7.0-rc3 kernel, I encountered some very strange crash issues showing up as "Bad page state": " 734.496287 BUG: Bad...

CVE-2026-31648

In the Linux kernel, the following vulnerability has been resolved: mm: filemap: fix nrpages calculation overflow in filemapmappages When running stress-ng on my Arm64 machine with v7.0-rc3 kernel, I encountered some very strange crash issues showing up as "Bad page state": " 734.496287 BUG: Bad...

DEBIAN-CVE-2026-31648

In the Linux kernel, the following vulnerability has been resolved: mm: filemap: fix nrpages calculation overflow in filemapmappages When running stress-ng on my Arm64 machine with v7.0-rc3 kernel, I encountered some very strange crash issues showing up as "Bad page state": " 734.496287 BUG: Bad...

CVE-2026-31648 mm: filemap: fix nr_pages calculation overflow in filemap_map_pages()

In the Linux kernel, the following vulnerability has been resolved: mm: filemap: fix nrpages calculation overflow in filemapmappages When running stress-ng on my Arm64 machine with v7.0-rc3 kernel, I encountered some very strange crash issues showing up as "Bad page state": " 734.496287 BUG: Bad...

CVE-2026-31648 mm: filemap: fix nr_pages calculation overflow in filemap_map_pages()

In the Linux kernel, the following vulnerability has been resolved: mm: filemap: fix nrpages calculation overflow in filemapmappages When running stress-ng on my Arm64 machine with v7.0-rc3 kernel, I encountered some very strange crash issues showing up as "Bad page state": " 734.496287 BUG: Bad...

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 an overflow in the calculation of nrpages in the filemapmappages function. This vulnerability cou...

SUSE CVE-2025-40081

In the Linux kernel, the following vulnerability has been resolved: perf: armspe: Prevent overflow in PERFIDX2OFF Cast nrpages to unsigned long to avoid overflow when handling large AUX buffer sizes = 2 GiB...

AZL-68912 CVE-2025-40081 affecting package kernel for versions less than 6.6.112.1-2

In the Linux kernel, the following vulnerability has been resolved: perf: armspe: Prevent overflow in PERFIDX2OFF Cast nrpages to unsigned long to avoid overflow when handling large AUX buffer sizes = 2 GiB...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a failure to convert nrpages to an unsigned long type, which could lead to an overflow in the PERFIDX2OFF...

CVE-2025-39793

In the Linux kernel, the following vulnerability has been resolved: iouring/memmap: cast nrpages to sizet before shifting If the allocated size exceeds UINTMAX, then it's necessary to cast the mr-nrpages value to sizet to prevent it from overflowing. In practice this isn't much of a concern as th...

CVE-2025-39793

In the Linux kernel, the following vulnerability has been resolved: iouring/memmap: cast nrpages to sizet before shifting If the allocated size exceeds UINTMAX, then it's necessary to cast the mr-nrpages value to sizet to prevent it from overflowing. In practice this isn't much of a concern as th...

DEBIAN-CVE-2025-39793

In the Linux kernel, the following vulnerability has been resolved: iouring/memmap: cast nrpages to sizet before shifting If the allocated size exceeds UINTMAX, then it's necessary to cast the mr-nrpages value to sizet to prevent it from overflowing. In practice this isn't much of a concern as th...

CVE-2025-39793

Summary (CVE-2025-39793): In the Linux kernel io_uring/memmap path, the vulnerability arises when allocating memory where nr_pages may overflow during a shift if the size exceeds UINT_MAX. The root cause is failure to cast mr->nr_pages to size_t before shifting, which could allow overflow and ...

PT-2025-37327

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The Linux kernel contains an issue in the io uring/memmap component where the nr pages value is not cast to size t before shifting, potentially leading to an overflow if the allocated...