Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm/memory-failure: fixed a deadlock that occurred when hugetlboptimizevmemmap was enabled. When I performed hard offline tests with hugetlb pages, a deadlock occurred as follows:...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-005677)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005677 advisory. In the Linux kernel, the following vulnerability has been resolved: mm/swapfile: skip HugeTLB pages for unusevma I got a bad pud error and lost a 1GB HugeTLB when...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-005438)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005438 advisory. In the Linux kernel, the following vulnerability has been resolved: mm/swapfile: skip HugeTLB pages for unusevma I got a bad pud error and lost a 1GB HugeTLB when...

CVE-2026-23097 migrate: correct lock ordering for hugetlb file folios

In the Linux kernel, the following vulnerability has been resolved: migrate: correct lock ordering for hugetlb file folios Syzbot has found a deadlock analyzed by Lance Yang: 1 Task 5749: Holds foliolock, then tries to acquire immaprwsemread lock. 2 Task 5754: Holds immaprwsemwrite lock, then tri...

PT-2026-6167

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description The Linux kernel contains a deadlock issue related to lock ordering within hugetlb file folios during page migration. Specifically, a deadlock can occur when one task holds a folio lock...

CVE-2022-50630

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: fix UAF in hugetlbhandleuserfault The vmalock and hugetlbfaultmutex are dropped before handling userfault and reacquire them again after handleuserfault, but reacquire the vmalock could lead to UAF1,2 due to the...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: mm/smaps: Fixed a race condition between smapshugetlbrange and migration. The smapshugetlbrange function handles the page table entry without holding the Page Table Lock PTL. This may cause a concurrency issue with migration,...

kernel: mm/swapfile: skip HugeTLB pages for unuse_vma

In the Linux kernel, the following vulnerability has been resolved: mm/swapfile: skip HugeTLB pages for unusevma I got a bad pud error and lost a 1GB HugeTLB when calling swapoff. The problem can be reproduced by the following steps: 1. Allocate an anonymous 1GB HugeTLB and some other anonymous...

UBUNTU-CVE-2025-22034

In the Linux kernel, the following vulnerability has been resolved: mm/gup: reject FOLLSPLITPMD with hugetlb VMAs Patch series "mm: fixes for device-exclusive entries hmm", v2. Discussing the PageTail call in makedeviceexclusiverange with Willy, I recently discovered 1 that device-exclusive...

VulnCheck KEV: CVE-2024-26987

In the Linux kernel, the following vulnerability has been resolved: mm/memory-failure: fix deadlock when hugetlboptimizevmemmap is enabled When I did hard offline test with hugetlb pages, below deadlock occurs: ====================================================== WARNING: possible circular...

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-2024-50199 mm/swapfile: skip HugeTLB pages for unuse_vma

In the Linux kernel, the following vulnerability has been resolved: mm/swapfile: skip HugeTLB pages for unusevma I got a bad pud error and lost a 1GB HugeTLB when calling swapoff. The problem can be reproduced by the following steps: 1. Allocate an anonymous 1GB HugeTLB and some other anonymous...

CVE-2024-50199

CVE-2024-50199 (Linux kernel): The issue is in mm/swapfile handling where HugeTLB pages could be leaked after swapoff due to pud_none_or_clear_bad path, causing a bad pud error. The described fix is to skip HugeTLB pages for unuse_vma, preventing leakage when swapping. Affected areas are the swap...

SUSE CVE-2024-49964

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix memfdpinfolios freehugepages leak memfdpinfolios followed by unpinfolios fails to restore freehugepages if the pages were not already faulted in, because the folio refcount for pages created by memfdallocfolio nev...

CVE-2024-49873

In the Linux kernel, the following vulnerability has been resolved: mm/filemap: fix filemapgetfolioscontig THP panic Patch series "memfd-pin huge page fixes". Fix multiple bugs that occur when using memfdpinfolios with hugetlb pages and THP. The hugetlb bugs only bite when the page is not yet...

CVE-2024-49873 mm/filemap: fix filemap_get_folios_contig THP panic

In the Linux kernel, the following vulnerability has been resolved: mm/filemap: fix filemapgetfolioscontig THP panic Patch series "memfd-pin huge page fixes". Fix multiple bugs that occur when using memfdpinfolios with hugetlb pages and THP. The hugetlb bugs only bite when the page is not yet...

DEBIAN-CVE-2024-39298

In the Linux kernel, the following vulnerability has been resolved: mm/memory-failure: fix handling of dissolved but not taken off from buddy pages When I did memory failure tests recently, below panic occurs: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8cee00 flags:...

EulerOS 2.0 SP12 : kernel (EulerOS-SA-2024-1764)

"According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : In the Linux kernel, the following vulnerability has been resolved: ipv4, ipv6: Fix handling of transhdrlen in ip,6appenddata Including the...

CVE-2024-26987

In the Linux kernel, the following vulnerability has been resolved: mm/memory-failure: fix deadlock when hugetlboptimizevmemmap is enabled When I did hard offline test with hugetlb pages, below deadlock occurs: ====================================================== WARNING: possible circular...

CVE-2024-26987

In the Linux kernel, the following vulnerability has been resolved: mm/memory-failure: fix deadlock when hugetlboptimizevmemmap is enabled When I did hard offline test with hugetlb pages, below deadlock occurs: ====================================================== WARNING: possible circular...