CVE-2023-2598

CVE-2023-2598 Privilege Escalation Understand the Compound Page and folio mechanisms in Linux through CVE-2023-2598, and subsequently see if it's possible to complete the exploitation of the 1day CVE-2023-6560. Compound Page huge page Memory is growing larger and larger, but the basic page...

CVE-2026-80686

In the Linux kernel, the following vulnerability has been resolved: mm: migratedevice: fix ptepfn/ptedirty called on non-present PTE ptepfn and ptedirty have undefined behaviour when called on a non-present PTE. In migratevmacollectpmd, these functions may be invoked on non-present entries e.g.,...

CVE-2026-80685

In the Linux kernel, the following vulnerability has been resolved: mm/util: don't read page2 for order-1 folios in snapshotpage snapshotpage currently reads page2 after checking nrpages 1, but it should only do so when nrpages 2. If an order-1 folio is allocated at the end of a vmemmap section,...

CVE-2026-80685

A Linux kernel vulnerability in the snapshot_page() function within mm/util causes an out-of-bounds read of the __page_2 field for order-1 folios allocated at the end of a vmemmap section . The function incorrectly reads __page_2 when nr_pages > 1, but should only do so when nr_pages > 2; s...

EUVD-2026-67561

In the Linux kernel, the following vulnerability has been resolved: mm/util: don't read page2 for order-1 folios in snapshotpage snapshotpage currently reads page2 after checking nrpages 1, but it should only do so when nrpages 2. If an order-1 folio is allocated at the end of a vmemmap section,...

CVE-2026-80685 mm/util: don't read __page_2 for order-1 folios in snapshot_page()

In the Linux kernel, the following vulnerability has been resolved: mm/util: don't read page2 for order-1 folios in snapshotpage snapshotpage currently reads page2 after checking nrpages 1, but it should only do so when nrpages 2. If an order-1 folio is allocated at the end of a vmemmap section,...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098899)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098899 advisory. In the Linux kernel, the following vulnerability has been resolved: fuse: re-lock request before replacing page cache folio fusetrymovefolio unlocks the request on...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: mm: Use memallocnofssave in pagecacheraorder See commit f2c817bed58d “mm: Use memallocnofssave in readahead path”. Ensure that pagecacheraorder does not attempt to reclaim file-backed pages too often, as this can lead to a...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fixed the issue where folio is still mapped after deletion. The migration process may encounter a race condition involving fallocating holes. The removeinodesinglefolio function will unmap the folio if it is still...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm: zswap: fix missing folio cleanup in writeback race path In zswapwritebackentry, after obtaining a folio from readswapcacheasync, we reacquire the tree lock to ensure that the swap entry was not invalidated or recycled. If it...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mm/secretmem: fixed a use-after-free race condition in the fault handler. When a page fault occurs in a secret memory file created with memfdsecret2, the kernel will allocate a new folio for it, mark the underlying page as not...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm/migrate: fixed the issue where shmem xarray updates occur during migration. A shmem folio can be either in the page cache or in the swap cache, but not both at the same time. Specifically, once it is in the swap cache,...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: f2fs: a fix was made to avoid a Use-After-Free issue in f2fswriteendio. According to syzbot, a use-after-free issue occurred in f2fswriteendio. This issue is caused by the following race condition: Loop device Unmount Worker...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: s390/uv: Do not call foliowaitwriteback without a folio reference. foliowaitwriteback requires that no spinlocks are held and that a folio reference is held, as documented. After we removed the PTL, the folio object could be free...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: cifs: The folio lock is released upon a successful read from fscache. Under the current code, when cifsreadpageworker is called, the contract between the caller and the callee is that the callee should unlock the page. This is...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fs/buffer: An alert is added in trytofreebuffers for folios without buffers. trytofreebuffers can be called on folios with no buffers attached when filemapreleasefolio is invoked on a folio that belongs to a mapping, and...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfs: Only call foliostartfscache once for each folio. If a network filesystem using netfs implements a clamplength function, it can set subrequest lengths that are smaller than the page size. When we loop through the folios in...

CVE-2026-74644

In the Linux kernel, the following vulnerability has been resolved: mm/damon/ops-common: putback folios on invalid migrate nid damonpamigrate and damosvamigrate isolate folios into a local list and then call damonmigratepages. When targetnid is invalid including the scheme default NUMANONODE / -1...

CVE-2026-74632

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: fix hugezeropfn race Patch series "mm/hugememory: fix hugezeropfn race", v2. There is a subtle race in the reference-counted hugezerofolio implementation. The fast path atomic logic fails to account for the fact th...

CVE-2026-74591

In the Linux kernel, the following vulnerability has been resolved: mm/filemap: filemapaddfolio restore index before retrying In filemapaddfolio's split-a-conflict loop, xassetorder is applied repeatedly: each application modifies xas.xaindex, rounding it down according to the splitorder attempte...