CVE-2026-52955 libceph: Fix potential out-of-bounds access in crush_decode()

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds access in crushdecode A message of type CEPHMSGOSDMAP containing a crush map with at least one bucket has two fields holding the bucket algorithm. If the values in these two fields differ, an...

CVE-2026-52954 libceph: handle rbtree insertion error in decode_choose_args()

In the Linux kernel, the following vulnerability has been resolved: libceph: handle rbtree insertion error in decodechooseargs A message of type CEPHMSGOSDMAP contains an OSD map that itself contains a CRUSH map. The received CRUSH map may optionally contain chooseargs that get decoded in...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ceph: fixed NULL pointer dereference in cephmdsauthmatch The CephFS kernel client has a regression starting from 6.18-rc1. We have a issue with cephmdsauthmatch if fsname is NULL: c const char fsname =...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ceph: Fix for oops due to invalid pointer for kfree in parselongname This fix addresses a kernel oops that occurs when reading ceph snapshot directories .snap, for example, by simply running ls /mnt/myceph/.snap. The variable str...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: Ceph: fixed a crash in processv2sparseread for encrypted directories. A crash in processv2sparseread for fscrypt-encrypted directories has been reported. This issue occurs in the Ceph msgr2 protocol in secure mode. It can be...

PT-2026-51855

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the Ceph component of the Linux kernel. The issue occurs because the required blob size computation was moved before the build xattrs call. Since build xattrs...

PT-2026-51854

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.18 Description An issue exists in the ceph component where folios not suitable for writeback are not properly released. Because the batch maintains references to the folios through filemap get folios and folio...

PT-2026-51856

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A buffer leak occurs in the ceph module within the ceph setxattr function. During a retry operation, the old blob variable can store the value of ci-i xattrs.prealloc blob, but the ceph...

kernel: Linux kernel: Denial of Service in libceph OSD client due to unreset sparse-read state

A flaw was found in the Linux kernel's libceph OSD client. When a connection fault occurs during a sparse read, the sparse-read state is not properly reset. This allows a misbehaving or compromised Ceph OSD server, or a network adversary, to disrupt traffic. As a result, the client can misinterpr...

kernel: Linux kernel: Denial of Service in libceph OSD client due to unreset sparse-read state

A flaw was found in the Linux kernel's libceph OSD client. When a connection fault occurs during a sparse read, the sparse-read state is not properly reset. This allows a misbehaving or compromised Ceph OSD server, or a network adversary, to disrupt traffic. As a result, the client can misinterpr...

RHEL 9 : kernel (RHSA-2026:27708)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:27708 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: smc: Fix use-after-free in...

RHEL 10 : kernel (RHSA-2026:27731)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:27731 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: Use-after-free...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ceph: Fix for numops off-by-one when crypto allocation fails The movedirtyfolioinpagearray function may fail if the file is encrypted, if the dirty folio is not the first in the batch, and if it fails to allocate a bounce buffer ...

kernel: libceph: make decode_pool() more resilient against corrupted osdmaps

In the Linux kernel, the following vulnerability has been resolved: libceph: make decodepool more resilient against corrupted osdmaps If the osdmap is maliciously corrupted such that the encoded length of cephpgpool envelope is less than what is expected for a particular encoding version,...

kernel: libceph: make decode_pool() more resilient against corrupted osdmaps

In the Linux kernel, the following vulnerability has been resolved: libceph: make decodepool more resilient against corrupted osdmaps If the osdmap is maliciously corrupted such that the encoded length of cephpgpool envelope is less than what is expected for a particular encoding version,...

Important: Red Hat Security Advisory: Red Hat OpenShift Data Foundation 4.18.24 security, enhancement & bug fix update

Red Hat OpenShift Data Foundation 4.18.24 security, enhancement & bug fix update Red Hat OpenShift Data Foundation 4.18.24 security, enhancement & bug fix update FIXED BUGS: ========== DFBUGS-7107: Backport to 4.18.z CLONE - ODF Console is breaking DFBUGS-7064: RHODF 4.18.24 release DFBUGS-7046:...

Important: Red Hat Security Advisory: New container image: rhceph-9.0

A new version of Red Hat build of Ceph Storage has been released The Red Hat Storage Ceph container images are based on the latest ubi9 base image and Ceph 9.0. This release updates to the latest version...

kernel: libceph: make decode_pool() more resilient against corrupted osdmaps

In the Linux kernel, the following vulnerability has been resolved: libceph: make decodepool more resilient against corrupted osdmaps If the osdmap is maliciously corrupted such that the encoded length of cephpgpool envelope is less than what is expected for a particular encoding version,...

Ubuntu 20.04 LTS : Linux kernel (FIPS) vulnerabilities (USN-7495-2)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7495-2 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in...

Critical: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: geneve: Fix use-after-free in genevefinddev. CVE-2025-21858 kernel: smc: Fix use-after-free in tcpwritetimerhandler CVE-2023-53781 kernel: nbd: defer config unlock in nbdgenlconnect...