CVE-2021-47214

In the Linux kernel, the following vulnerability has been resolved: hugetlb, userfaultfd: fix reservation restore on userfaultfd error Currently in the iscontinue case in hugetlbmcopyatomicpte, if we bail out using "goto outreleaseunlock;" in the cases where idx = size, or !hugeptenone, the code...

CVE-2021-47214

CVE-2021-47214 affects Linux kernel hugetlb/userfaultfd handling. The fix corrects reservation restoration on userfaultfd error in hugetlb_mcopy_atomic_pte() by treating the is_continue path like pagecache insertion and altering the new_pagecache_page flag (renamed to page_in_pagecache) so restor...

CVE-2021-47214: Missing Release of Memory after Effective Lifetime

In the Linux kernel, the following vulnerability has been resolved: hugetlb, userfaultfd: fix reservation restore on userfaultfd error Currently in the iscontinue case in hugetlbmcopyatomicpte, if we bail out using "goto outreleaseunlock;" in the cases where idx = size, or !hugeptenone, the code...

CVE-2024-26688

A vulnerability was found in the Linux kernel during hugetlb filesystem configuration, whereby a NULL pointer dereference caused by invalid pagesize values can lead to potential crashes...

CVE-2024-26688

In the Linux kernel, the following vulnerability has been resolved: fs,hugetlb: fix NULL pointer dereference in hugetlbsfillsuper When configuring a hugetlb filesystem via the fsconfig syscall, there is a possible NULL dereference in hugetlbfsfillsuper caused by assigning NULL to ctx-hstate in...

CVE-2024-26688

In the Linux kernel, the following vulnerability has been resolved: fs,hugetlb: fix NULL pointer dereference in hugetlbsfillsuper When configuring a hugetlb filesystem via the fsconfig syscall, there is a possible NULL dereference in hugetlbfsfillsuper caused by assigning NULL to ctx-hstate in...

CVE-2024-26688

CVE-2024-26688 — affected component: Linux kernel hugetlbfs . The vulnerability is a NULL pointer dereference in hugetlbfs_fill_super() triggered when configuring a hugetlb filesystem via fsconfig() with an invalid pagesize. The issue happens because ctx->hstate may be set to NULL in hugetlbfs...

CVE-2024-26688 fs,hugetlb: fix NULL pointer dereference in hugetlbs_fill_super

In the Linux kernel, the following vulnerability has been resolved: fs,hugetlb: fix NULL pointer dereference in hugetlbsfillsuper When configuring a hugetlb filesystem via the fsconfig syscall, there is a possible NULL dereference in hugetlbfsfillsuper caused by assigning NULL to ctx-hstate in...

CVE-2024-26688 fs,hugetlb: fix NULL pointer dereference in hugetlbs_fill_super

In the Linux kernel, the following vulnerability has been resolved: fs,hugetlb: fix NULL pointer dereference in hugetlbsfillsuper When configuring a hugetlb filesystem via the fsconfig syscall, there is a possible NULL dereference in hugetlbfsfillsuper caused by assigning NULL to ctx-hstate in...

CVE-2024-26688 fs,hugetlb: fix NULL pointer dereference in hugetlbs_fill_super

In the Linux kernel, the following vulnerability has been resolved: fs,hugetlb: fix NULL pointer dereference in hugetlbsfillsuper When configuring a hugetlb filesystem via the fsconfig syscall, there is a possible NULL dereference in hugetlbfsfillsuper caused by assigning NULL to ctx-hstate in...

PT-2024-26830 · Linux +4 · Linux Kernel +4

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the folio test hugetlb function, which can be fooled by a concurrent folio split into returning true for a folio that has never belonged to hugetlbfs. This can...

CVE-2024-0841

A null pointer dereference flaw was found in the hugetlbfsfillsuper function in the Linux kernel hugetlbfs HugeTLB pages functionality. This issue may allow a local user to crash the system or potentially escalate their privileges on the system...

DEBIAN-CVE-2024-0841

A null pointer dereference flaw was found in the hugetlbfsfillsuper function in the Linux kernel hugetlbfs HugeTLB pages functionality. This issue may allow a local user to crash the system or potentially escalate their privileges on the system...

CVE-2024-0841

A null pointer dereference flaw was found in the hugetlbfsfillsuper function in the Linux kernel hugetlbfs HugeTLB pages functionality. This issue may allow a local user to crash the system or potentially escalate their privileges on the system. Mitigation Mitigation for this issue is either not...

kernel: mm: hugetlb: fix UAF in hugetlb_handle_userfault

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...

kernel: mm/hugetlb: fix PTE marker handling in hugetlb_change_protection()

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix PTE marker handling in hugetlbchangeprotection Patch series "mm/hugetlb: uffd-wp fixes for hugetlbchangeprotection". Playing with virtio-mem and background snapshots using uffd-wp on hugetlb in QEMU, I managed to...

kernel: race condition in hugetlb_no_page() in mm/hugetlb.c

A vulnerability was found in hugetlbnopage in the mm/hugetlb.c file in the Linux Kernel, where a manipulation leads to a race condition. This flaw may allow a local attacker to cause a denial of service and can lead to a kernel information leak issue...

kernel: mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages

In the Linux kernel, the following vulnerability has been resolved: mm,hugetlb: take hugetlblock before decrementing h-resvhugepages The h-hugepages counters are protected by the hugetlblock, but allochugepage has a corner case where it can decrement the counter outside of the lock. This could le...

kernel: race condition in hugetlb_no_page() in mm/hugetlb.c

A vulnerability was found in hugetlbnopage in the mm/hugetlb.c file in the Linux Kernel, where a manipulation leads to a race condition. This flaw may allow a local attacker to cause a denial of service and can lead to a kernel information leak issue...

PT-2025-25917 · Linux +1 · Linux Kernel +1

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the Linux kernel, specifically in the hugetlb mcopy atomic pte function. In the MCOPY ATOMIC CONTINUE case with a non-shared VMA, pages in the page cache are...