Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: mm/memfd: Fixed an issue where information leaks occurred during the handling of hugetlb folios. When allocating hugetlb folios for memfd, three initialization steps are missing: 1. The folios are not zeroed, resulting in kern...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: A NULL pointer dereferencing issue was addressed when splitting folio objects. The commit c010d47f107f “mm: thp: splitting huge pages into lower-order pages” introduced a check on the order of the folio objects via...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: NFS: Fixed a deadlock involving nfsreleasefolio Wang Zhaolong reported a deadlock involving NFSv4.1 state recovery, waiting on kthreadd, which attempts to reclaim memory by calling nfsreleasefolio. The latter cannot proceed due t...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: ext4: fixed inconsistencies in e4b bitmap reports An inconsistency issue with the bitmap was observed during stress tests under mixed huge-page workloads. Ext4 reported multiple e4b bitmap check failures, such as:...

Astra Linux – Vulnerability in Linux 6.1

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 found in Linux 6.12, 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 found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fs/buffer: An alert is added in trytofreebuffers for folios that have no buffers attached. trytofreebuffers can be called on folios with no buffers attached when filemapreleasefolio is invoked on a folio that belongs to a mapping...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: f2fs: fixed an issue to avoid overflow during left shift operations. The type of folio-index should be changed from pgofft to lofft to prevent overflow during left shift operations...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: migrate: corrected lock ordering for hugetlb file folio operations Syzbot has identified a deadlock analyzed by Lance Yang: 1 Task 5749: Holds foliolock, then attempts to acquire immaprwsem read lock. 2 Task 5754: Holds...

The vulnerability of the __folio_split() function in the mm/huge_memory.c module of the Linux kernel’s memory management subsystem allows a hacker to trigger a system failure.

The vulnerability of the foliosplit function in the mm/hugememory.c module of the Linux kernel’s memory management subsystem is related to pointer manipulation. Exploiting this vulnerability could allow an attacker to cause a system failure...

The vulnerability of the memfd_alloc_folio() function in the mm/memfd.c module of the Linux kernel’s memory management subsystem allows a hacker to gain unauthorized access to protected information.

The vulnerability of the memfdallocfolio function in the mm/memfd.c module of the Linux kernel’s memory management subsystem is related to the use of an uninitialized resource. Exploiting this vulnerability could allow an attacker to gain unauthorized access to protected information...

CentOS 9 : kernel-5.14.0-729.el9

The remote CentOS Linux 9 host has packages installed that are affected by a vulnerability as referenced in the kernel-5.14.0-729.el9 build changelog. - In the Linux kernel, the following vulnerability has been resolved: lib/buildid: use kernelread for sleepable context Prevent a BUG: unable to...

UBUNTU-CVE-2026-64216

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix potential UAF in netfsunlockabandonedreadpages netfsunlockabandonedreadpagesrreq accesses the index of the folios it is wanting to unlock and compares that to rreq-nounlockfolio so that it doesn't unlock a folio being...

CVE-2026-64216

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix potential UAF in netfsunlockabandonedreadpages netfsunlockabandonedreadpagesrreq accesses the index of the folios it is wanting to unlock and compares that to rreq-nounlockfolio so that it doesn't unlock a folio being...

fuse: re-lock request before returning from fuse_ref_folio()

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CVE-2026-64266

In the Linux kernel, the following vulnerability has been resolved: fuse: re-lock request before returning from fusereffolio fusereffolio unlocks the request but does not re-lock it before returning. fusechanabort can end the request and the async end callback eg fusewritepagefree can free the ar...

CVE-2026-64266 fuse: re-lock request before returning from fuse_ref_folio()

In the Linux kernel, the following vulnerability has been resolved: fuse: re-lock request before returning from fusereffolio fusereffolio unlocks the request but does not re-lock it before returning. fusechanabort can end the request and the async end callback eg fusewritepagefree can free the ar...

CVE-2026-64266

CVE-2026-64266 affects the Linux kernel fuse subsystem. The vulnerability stems from fuse_ref_folio() unlocking the request but not re-locking before return, allowing fuse_chan_abort() to end the request and for the async end callback to free args while the copy chain later accesses them, causing...

CVE-2026-64266

In the Linux kernel, the following vulnerability has been resolved: fuse: re-lock request before returning from fusereffolio fusereffolio unlocks the request but does not re-lock it before returning. fusechanabort can end the request and the async end callback eg fusewritepagefree can free the ar...

SUSE CVE-2026-64216

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix potential UAF in netfsunlockabandonedreadpages netfsunlockabandonedreadpagesrreq accesses the index of the folios it is wanting to unlock and compares that to rreq-nounlockfolio so that it doesn't unlock a folio being...