DEBIAN-CVE-2025-21908

In the Linux kernel, the following vulnerability has been resolved: NFS: fix nfsreleasefolio to not deadlock via kcompactd writeback Add PFKCOMPACTD flag and currentiskcompactd helper to check for it so nfsreleasefolio can skip calling nfswbfolio from kcompactd. Otherwise NFS can deadlock waiting...

AZL-69518 CVE-2025-21907 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: mm: memory-failure: update ttu flag inside unmappoisonedfolio Patch series "mm: memoryfailure: unmap poisoned folio during migrate properly", v3. Fix two bugs during folio migration if the folio is poisoned. This patch of 3: Comm...

DEBIAN-CVE-2025-21907

In the Linux kernel, the following vulnerability has been resolved: mm: memory-failure: update ttu flag inside unmappoisonedfolio Patch series "mm: memoryfailure: unmap poisoned folio during migrate properly", v3. Fix two bugs during folio migration if the folio is poisoned. This patch of 3: Comm...

CVE-2025-21907

In the Linux kernel, the following vulnerability has been resolved: mm: memory-failure: update ttu flag inside unmappoisonedfolio Patch series "mm: memoryfailure: unmap poisoned folio during migrate properly", v3. Fix two bugs during folio migration if the folio is poisoned. This patch of 3: Comm...

AZL-60352 CVE-2025-21908 affecting package kernel for versions less than 6.6.85.1-2

In the Linux kernel, the following vulnerability has been resolved: NFS: fix nfsreleasefolio to not deadlock via kcompactd writeback Add PFKCOMPACTD flag and currentiskcompactd helper to check for it so nfsreleasefolio can skip calling nfswbfolio from kcompactd. Otherwise NFS can deadlock waiting...

CVE-2025-21896

In the Linux kernel, the following vulnerability has been resolved: fuse: revert back to readaheadfolio for readahead In commit 3eab9d7bc2f4 "fuse: convert readahead to use folios", the logic was converted to using the new folio readahead code, which drops the reference on the folio once it is...

UBUNTU-CVE-2025-21896

In the Linux kernel, the following vulnerability has been resolved: fuse: revert back to readaheadfolio for readahead In commit 3eab9d7bc2f4 "fuse: convert readahead to use folios", the logic was converted to using the new folio readahead code, which drops the reference on the folio once it is...

UBUNTU-CVE-2025-21907

In the Linux kernel, the following vulnerability has been resolved: mm: memory-failure: update ttu flag inside unmappoisonedfolio Patch series "mm: memoryfailure: unmap poisoned folio during migrate properly", v3. Fix two bugs during folio migration if the folio is poisoned. This patch of 3: Comm...

UBUNTU-CVE-2025-21908

In the Linux kernel, the following vulnerability has been resolved: NFS: fix nfsreleasefolio to not deadlock via kcompactd writeback Add PFKCOMPACTD flag and currentiskcompactd helper to check for it so nfsreleasefolio can skip calling nfswbfolio from kcompactd. Otherwise NFS can deadlock waiting...

UBUNTU-CVE-2025-21984

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...

UBUNTU-CVE-2025-21931

In the Linux kernel, the following vulnerability has been resolved: hwpoison, memoryhotplug: lock folio before unmap hwpoisoned folio Commit b15c87263a69 "hwpoison, memoryhotplug: allow hwpoisoned pages to be offlined add page poison checks in domigraterange in order to make offline hwpoisoned pa...

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...

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...

CVE-2025-21931 hwpoison, memory_hotplug: lock folio before unmap hwpoisoned folio

In the Linux kernel, the following vulnerability has been resolved: hwpoison, memoryhotplug: lock folio before unmap hwpoisoned folio Commit b15c87263a69 "hwpoison, memoryhotplug: allow hwpoisoned pages to be offlined add page poison checks in domigraterange in order to make offline hwpoisoned pa...

CVE-2025-21931 hwpoison, memory_hotplug: lock folio before unmap hwpoisoned folio

In the Linux kernel, the following vulnerability has been resolved: hwpoison, memoryhotplug: lock folio before unmap hwpoisoned folio Commit b15c87263a69 "hwpoison, memoryhotplug: allow hwpoisoned pages to be offlined add page poison checks in domigraterange in order to make offline hwpoisoned pa...

CVE-2025-21931

CVE-2025-21931 affects the Linux kernel memory hotplug path (hwpoison) and was fixed by ensuring folio lock is held before unmapping hwpoisoned folio. The fix adds the folio lock around unmap calls in do_migrate_range/try_to_unmap to prevent the kernel BUG triggered when folio is not locked. The ...

CVE-2025-21907 mm: memory-failure: update ttu flag inside unmap_poisoned_folio

In the Linux kernel, the following vulnerability has been resolved: mm: memory-failure: update ttu flag inside unmappoisonedfolio Patch series "mm: memoryfailure: unmap poisoned folio during migrate properly", v3. Fix two bugs during folio migration if the folio is poisoned. This patch of 3: Comm...

CVE-2025-21907

CVE-2025-21907 documents a Linux kernel memory-management issue: during folio migration, unmap_poisoned_folio() must set TTU_HWPOISON for anon folio (and align policy with hwpoison_user_mappings for pagecache). The patch series mm: memory_failure: unmap poisoned folio during migrate properly fixe...

CVE-2025-21907

In the Linux kernel, the following vulnerability has been resolved: mm: memory-failure: update ttu flag inside unmappoisonedfolio Patch series "mm: memoryfailure: unmap poisoned folio during migrate properly", v3. Fix two bugs during folio migration if the folio is poisoned. This patch of 3: Comm...

CVE-2025-21896

CVE-2025-21896 affects the Linux kernel fuse readahead path. The issue arose when converting readahead to folios: folio references were dropped after locking, breaking the expected reference on ap->folios during splice operations, risking use-after-free in readpages. The fix reverts to __reada...