64 matches found
UBUNTU-CVE-2025-38686
In the Linux kernel, the following vulnerability has been resolved: userfaultfd: fix a crash in UFFDIOMOVE when PMD is a migration entry When UFFDIOMOVE encounters a migration PMD entry, it proceeds with obtaining a folio and accessing it even though the entry is swpentryt. Add the missing check...
CVE-2025-38686 userfaultfd: fix a crash in UFFDIO_MOVE when PMD is a migration entry
In the Linux kernel, the following vulnerability has been resolved: userfaultfd: fix a crash in UFFDIOMOVE when PMD is a migration entry When UFFDIOMOVE encounters a migration PMD entry, it proceeds with obtaining a folio and accessing it even though the entry is swpentryt. Add the missing check...
CVE-2025-38686
CVE-2025-38686 describes a Linux kernel local crash in userfaultfd’s UFFDIO_MOVE when encountering a migration PMD entry. The fix adds a missing check and delegates migration-entry handling to split_huge_pmd(), and removes an unnecessary folio check. Upstream commits (e.g., 7f1101a0a181243ad587ec...
Linux Distros Unpatched Vulnerability : CVE-2025-37958
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix dereferencing invalid pmd migration entry When migrating a THP, concurren...
Linux Distros Unpatched Vulnerability : CVE-2022-49992
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: mm/mprotect: only reference swap pfn page if type match Yu Zhao reported a bug after the...
mm/huge_memory: fix dereferencing invalid pmd migration entry
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PT-2025-35959
Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to userfaultfd. Specifically, a crash can occur in the UFFDIO MOVE operation when a Page Middle Directory PMD is a migration entry. The issue...
kernel: mm/huge_memory: fix dereferencing invalid pmd migration entry
In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix dereferencing invalid pmd migration entry When migrating a THP, concurrent access to the PMD migration entry during a deferred split scan can lead to an invalid address access, as illustrated below. To prevent...
kernel: mm/huge_memory: fix dereferencing invalid pmd migration entry
In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix dereferencing invalid pmd migration entry When migrating a THP, concurrent access to the PMD migration entry during a deferred split scan can lead to an invalid address access, as illustrated below. To prevent...
kernel: mm/huge_memory: fix dereferencing invalid pmd migration entry
In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix dereferencing invalid pmd migration entry When migrating a THP, concurrent access to the PMD migration entry during a deferred split scan can lead to an invalid address access, as illustrated below. To prevent...
kernel: mm/huge_memory: fix dereferencing invalid pmd migration entry
In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix dereferencing invalid pmd migration entry When migrating a THP, concurrent access to the PMD migration entry during a deferred split scan can lead to an invalid address access, as illustrated below. To prevent...
kernel: mm/huge_memory: fix dereferencing invalid pmd migration entry
In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix dereferencing invalid pmd migration entry When migrating a THP, concurrent access to the PMD migration entry during a deferred split scan can lead to an invalid address access, as illustrated below. To prevent...
DEBIAN-CVE-2022-49992
In the Linux kernel, the following vulnerability has been resolved: mm/mprotect: only reference swap pfn page if type match Yu Zhao reported a bug after the commit "mm/swap: Add swpoffsetpfn to fetch PFN from swap entry" added a check in swpoffsetpfn for swap type 1: kernel BUG at...
SUSE CVE-2025-37958
In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix dereferencing invalid pmd migration entry When migrating a THP, concurrent access to the PMD migration entry during a deferred split scan can lead to an invalid address access, as illustrated below. To prevent...
CVE-2025-37958
In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix dereferencing invalid pmd migration entry When migrating a THP, concurrent access to the PMD migration entry during a deferred split scan can lead to an invalid address access, as illustrated below. To prevent...
UBUNTU-CVE-2025-37958
In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix dereferencing invalid pmd migration entry When migrating a THP, concurrent access to the PMD migration entry during a deferred split scan can lead to an invalid address access, as illustrated below. To prevent...
CVE-2025-37958
CVE-2025-37958 affects the Linux kernel THP path. The issue arises when migrating a THP: concurrent access to the PMD migration entry during a deferred split scan could dereference an invalid address. The fix adds a check of the PMD migration entry and returns early, since the PMD migration entry...
CVE-2025-37958 mm/huge_memory: fix dereferencing invalid pmd migration entry
In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix dereferencing invalid pmd migration entry When migrating a THP, concurrent access to the PMD migration entry during a deferred split scan can lead to an invalid address access, as illustrated below. To prevent...
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...