DEBIAN-CVE-2025-21696

In the Linux kernel, the following vulnerability has been resolved: mm: clear uffd-wp PTE/PMD state on mremap When mremaping a memory region previously registered with userfaultfd as write-protected but without UFFDFEATUREEVENTREMAP, an inconsistency in flag clearing leads to a mismatch between t...

CVE-2025-21696

In the Linux kernel, the following vulnerability has been resolved: mm: clear uffd-wp PTE/PMD state on mremap When mremaping a memory region previously registered with userfaultfd as write-protected but without UFFDFEATUREEVENTREMAP, an inconsistency in flag clearing leads to a mismatch between t...

UBUNTU-CVE-2025-21696

In the Linux kernel, the following vulnerability has been resolved: mm: clear uffd-wp PTE/PMD state on mremap When mremaping a memory region previously registered with userfaultfd as write-protected but without UFFDFEATUREEVENTREMAP, an inconsistency in flag clearing leads to a mismatch between t...

CVE-2025-21696

CVE-2025-21696 (Linux kernel) : Affects memory management with userfaultfd (UFFD). When mremap() moves a region previously registered with UFFD_WP but without UFFD_FEATURE_EVENT_REMAP, the code could fail to clear uffd-wp on PTE/PMD, causing a mismatch between vma flags (UFFD_WP cleared) and PTE/...

CVE-2025-21696 mm: clear uffd-wp PTE/PMD state on mremap()

In the Linux kernel, the following vulnerability has been resolved: mm: clear uffd-wp PTE/PMD state on mremap When mremaping a memory region previously registered with userfaultfd as write-protected but without UFFDFEATUREEVENTREMAP, an inconsistency in flag clearing leads to a mismatch between t...

CVE-2025-21696 mm: clear uffd-wp PTE/PMD state on mremap()

In the Linux kernel, the following vulnerability has been resolved: mm: clear uffd-wp PTE/PMD state on mremap When mremaping a memory region previously registered with userfaultfd as write-protected but without UFFDFEATUREEVENTREMAP, an inconsistency in flag clearing leads to a mismatch between t...

CVE-2025-21696 mm: clear uffd-wp PTE/PMD state on mremap()

In the Linux kernel, the following vulnerability has been resolved: mm: clear uffd-wp PTE/PMD state on mremap When mremaping a memory region previously registered with userfaultfd as write-protected but without UFFDFEATUREEVENTREMAP, an inconsistency in flag clearing leads to a mismatch between t...

CVE-2025-21696

In the Linux kernel, the following vulnerability has been resolved: mm: clear uffd-wp PTE/PMD state on mremap When mremaping a memory region previously registered with userfaultfd as write-protected but without UFFDFEATUREEVENTREMAP, an inconsistency in flag clearing leads to a mismatch between t...

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 not clearing the uffd-wp PTE/PMD state during the mremap operation. An attacker exploiting this vulnerabilit...

PT-2025-6932

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue arises when a memory region previously registered with userfaultfd as write-protected but without UFFD FEATURE EVENT REMAP is mremaped, leading to an inconsistency in flag...

SUSE CVE-2024-53111

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix address wraparound in movepagetables On 32-bit platforms, it is possible for the expression len + oldaddr include include include define ADDR1 void0x60000000 define ADDR2 void0x10000000 define SIZE 0x50000000uL int...

CVE-2024-53111

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix address wraparound in movepagetables On 32-bit platforms, it is possible for the expression len + oldaddr oldend to be false-positive if len + oldaddr wraps around. oldaddr is the cursor in the old range up to whic...

DEBIAN-CVE-2024-53111

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix address wraparound in movepagetables On 32-bit platforms, it is possible for the expression len + oldaddr include include include define ADDR1 void0x60000000 define ADDR2 void0x10000000 define SIZE 0x50000000uL int...

CVE-2024-53111

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix address wraparound in movepagetables On 32-bit platforms, it is possible for the expression len + oldaddr include include include define ADDR1 void0x60000000 define ADDR2 void0x10000000 define SIZE 0x50000000uL int...

UBUNTU-CVE-2024-53111

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix address wraparound in movepagetables On 32-bit platforms, it is possible for the expression len + oldaddr include include include define ADDR1 void0x60000000 define ADDR2 void0x10000000 define SIZE 0x50000000uL int...

CVE-2024-53111 mm/mremap: fix address wraparound in move_page_tables()

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix address wraparound in movepagetables On 32-bit platforms, it is possible for the expression len + oldaddr include include include define ADDR1 void0x60000000 define ADDR2 void0x10000000 define SIZE 0x50000000uL int...

CVE-2024-53111

The CVE-2024-53111 issue is in the Linux kernel mm/mremap.c: move_page_tables on 32-bit arches, where len + old_addr can wrap and trigger a false positive in the old_end check. This can cause mremap() to report success without moving PTEs, potentially losing contents of anonymous private mappings...

CVE-2024-53111 mm/mremap: fix address wraparound in move_page_tables()

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix address wraparound in movepagetables On 32-bit platforms, it is possible for the expression len + oldaddr include include include define ADDR1 void0x60000000 define ADDR2 void0x10000000 define SIZE 0x50000000uL int...

Linux 6.6 Race Condition Exploit

A security-relevant race between mremap and THP code has been discovered. Reaching the buggy code typically requires the ability to create unprivileged namespaces. The bug leads to installing physical address 0 as a page table, which is likely exploitable in several ways: For example, triggering...

Linux 6.6 Race Condition

Summary I found a security-relevant race between mremap and THP code. Reaching the buggy code typically requires the ability to create unprivileged namespaces. The bug leads to installing physical address 0 as a page table, which is likely exploitable in several ways: For example, triggering the...