CVE-2025-38084 mm/hugetlb: unshare page tables during VMA split, not before

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: unshare page tables during VMA split, not before Currently, splitvma triggers hugetlb page table unsharing through vmops-maysplit. This happens before the VMA lock and rmap locks are taken - which is too early, it...

PT-2025-30861 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The Linux kernel contains an issue in the mm/rmap module related to out-of-bounds page table access during batched unmap operations within the try to unmap one function. This occurs wh...

PT-2025-27290

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to the version containing the fix for this issue Description: The issue is related to the Linux kernel's handling of huge page tables during VMA split. The problem arises because the split vma function triggers...

CVE-2025-21984 mm: fix kernel BUG when userfaultfd_move encounters swapcache

In the Linux kernel, the following vulnerability has been resolved: mm: fix kernel BUG when userfaultfdmove encounters swapcache userfaultfdmove checks whether the PTE entry is present or a swap entry. - If the PTE entry is present, movepresentpte handles folio migration by setting: srcfolio-inde...

Linux Stale TLB Use-After-Free

Linux stable versions 5.4 and 5.10 suffer from a page use-after-free condition via a stale TLB entry caused by rmap lock not being held during PUD move...

SUSE CVE-2022-49063

In the Linux kernel, the following vulnerability has been resolved: ice: arfs: fix use-after-free when freeing @rxcpurmap The CI testing bots triggered the following splat: 718.203054 BUG: KASAN: use-after-free in freeirqcpurmap+0x53/0x80 718.206349 Read of size 4 at addr ffff8881bd127e00 by task...

PT-2025-8792

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been identified, related to the handling of memory allocation failures during dup mmap and uprobe registration. If a memory allocation fails, the...

CVE-2024-50066

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix movenormalpmd/retractpagetables race In mremap, movepagetables looks at the type of the PMD entry and the specified address range to figure out by which method the next chunk of page table entries should be moved. ...

SUSE CVE-2024-50066

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix movenormalpmd/retractpagetables race In mremap, movepagetables looks at the type of the PMD entry and the specified address range to figure out by which method the next chunk of page table entries should be moved. ...

DEBIAN-CVE-2024-50066

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix movenormalpmd/retractpagetables race In mremap, movepagetables looks at the type of the PMD entry and the specified address range to figure out by which method the next chunk of page table entries should be moved. ...

CVE-2024-50066

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix movenormalpmd/retractpagetables race In mremap, movepagetables looks at the type of the PMD entry and the specified address range to figure out by which method the next chunk of page table entries should be moved. ...

CVE-2024-50066

CVE-2024-50066 is a Linux kernel race in mm/mremap where move_page_tables can race with retract_page_tables under THP/rmap locking. The flaw stems from reading the PMD type before acquiring rmap locks, potentially creating bogus PMD entries (e.g., mapping page 0 as a page table on x86) and enabli...

CVE-2024-50066 mm/mremap: fix move_normal_pmd/retract_page_tables race

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix movenormalpmd/retractpagetables race In mremap, movepagetables looks at the type of the PMD entry and the specified address range to figure out by which method the next chunk of page table entries should be moved. ...

SUSE CVE-2023-1476

A use-after-free flaw was found in the Linux kernel's mm/mremap memory address space accounting source code. This issue occurs due to a race condition between rmap walk and mremap, allowing a local user to crash the system or potentially escalate their privileges on the system...

SUSE CVE-2021-47230

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Immediately reset the MMU context when the SMM flag is cleared Immediately reset the MMU context when the vCPU's SMM flag is cleared so that the SMM flag in the MMU role is always synchronized with the vCPU's flag. If R...

DEBIAN-CVE-2021-47230

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Immediately reset the MMU context when the SMM flag is cleared Immediately reset the MMU context when the vCPU's SMM flag is cleared so that the SMM flag in the MMU role is always synchronized with the vCPU's flag. If R...

UBUNTU-CVE-2021-47230

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Immediately reset the MMU context when the SMM flag is cleared Immediately reset the MMU context when the vCPU's SMM flag is cleared so that the SMM flag in the MMU role is always synchronized with the vCPU's flag. If R...

CVE-2021-47230

CVE-2021-47230 affects the Linux kernel KVM on x86. The vulnerability arises from a lack of synchronization between the vCPU SMM flag and the MMU’s SMM flag, so that when RSM is not emulated correctly, KVM can bail out and leave the MMU in an inconsistent state. This misalignment can cause a NULL...

CVE-2021-47139

A flaw was found in the Linux Kernel's netdevice, which is registered before client initializing is complete. If a window of time between netdevice is available and usable, and a user tries to change the channel number or ring param, it may cause the hns3setrxcpurmap to be called twice...

CVE-2021-47139 net: hns3: put off calling register_netdev() until client initialize complete

In the Linux kernel, the following vulnerability has been resolved: net: hns3: put off calling registernetdev until client initialize complete Currently, the netdevice is registered before client initializing complete. So there is a timewindow between netdevice available and usable. In this case,...