CVE-2025-38050

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios A kernel crash was observed when replacing free hugetlb folios: BUG: kernel NULL pointer dereference, address: 0000000000000028 PGD 0 P4D 0 Oops:...

SUSE CVE-2022-49991

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: avoid corrupting page-mapping in hugetlbmcopyatomicpte In MCOPYATOMICCONTINUE case with a non-shared VMA, pages in the page cache are installed in the ptes. But hugepageaddnewanonrmap is called for them mistakenly...

UBUNTU-CVE-2022-49991

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: avoid corrupting page-mapping in hugetlbmcopyatomicpte In MCOPYATOMICCONTINUE case with a non-shared VMA, pages in the page cache are installed in the ptes. But hugepageaddnewanonrmap is called for them mistakenly...

CVE-2022-49991

CVE-2022-49991 concerns the Linux kernel memory management subsystem, specifically the hugetlb path. In the MCOPY_ATOMIC_CONTINUE path for a non-shared VMA, pages from the page cache can be installed into ptes, but hugepage_add_new_anon_rmap is erroneously invoked for these pages, corrupting page...

CVE-2022-49991

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: avoid corrupting page-mapping in hugetlbmcopyatomicpte In MCOPYATOMICCONTINUE case with a non-shared VMA, pages in the page cache are installed in the ptes. But hugepageaddnewanonrmap is called for them mistakenly...

CVE-2022-49991 mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: avoid corrupting page-mapping in hugetlbmcopyatomicpte In MCOPYATOMICCONTINUE case with a non-shared VMA, pages in the page cache are installed in the ptes. But hugepageaddnewanonrmap is called for them mistakenly...

CVE-2025-38050

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios A kernel crash was observed when replacing free hugetlb folios: BUG: kernel NULL pointer dereference, address: 0000000000000028 PGD 0 P4D 0 Oops:...

UBUNTU-CVE-2025-38050

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios A kernel crash was observed when replacing free hugetlb folios: BUG: kernel NULL pointer dereference, address: 0000000000000028 PGD 0 P4D 0 Oops:...

CVE-2025-38050

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios A kernel crash was observed when replacing free hugetlb folios: BUG: kernel NULL pointer dereference, address: 0000000000000028 PGD 0 P4D 0 Oops:...

CVE-2025-38050 mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios A kernel crash was observed when replacing free hugetlb folios: BUG: kernel NULL pointer dereference, address: 0000000000000028 PGD 0 P4D 0 Oops:...

CVE-2025-38050 mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios A kernel crash was observed when replacing free hugetlb folios: BUG: kernel NULL pointer dereference, address: 0000000000000028 PGD 0 P4D 0 Oops:...

CVE-2025-38050

CVE-2025-38050 affects the Linux kernel hugetlb memory management. A race between __update_and_free_hugetlb_folio() and replace_free_hugepage_folios() can cause folio_hstate(folio) to see a NULL pointer, leading to a kernel NULL pointer dereference and crash. The description explains the root cau...

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, which stems from mm/hugetlb causing a null pointer dereference when replacing a large free page...

PT-2025-25824

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.15.0-rc6-zp 41 Description A kernel crash was observed due to a NULL pointer dereference when replacing free hugetlb folios. This issue arises from a potential race between update and free hugetlb folio and...

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 corrupt page-mapping in hugetlbmcopyatomicpte, which could lead to a non-shared VMA error...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: mm/gup: rejects FOLLSPLITPMD with hugetlb VMAs. The patch series “mm: fixes for device-exclusive entries hmm”, version 2. While discussing the PageTail call in makedeviceexclusiverange, I recently discovered that device-exclusive...

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...

CVE-2022-49828

CVE-2022-49828 affects the Linux kernel hugetlbfs: when a HugeTLB page is poisoned, the page was previously truncated from the page cache; the patch keeps the poisoned page in the cache. As described, subsequent reads/mappings can trigger the allocation of a new hugepage instead of signaling pois...

SUSE 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...

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...