CVE-2026-89646

A flaw was found in the Ceph filesystem component of the Linux kernel. When a writeback operation is aborted during an unmount process, a reference to an inode a data structure describing a filesystem object is not properly released. This prevents the inode from being evicted, potentially leading...

Linux Distros Unpatched Vulnerability : CVE-2026-89651

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ceph: bound MDSCapAuth path and fsname decode in handlesession handlesession decodes the MDSCapAuth records carried by a CEPHSESSIONOPEN message msgversion = 6...

Linux Distros Unpatched Vulnerability : CVE-2026-89653

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ceph: reject exporttargets ranks = CEPHMAXMDS in mdsmap decode MDSMap exporttargets entries are monitor controlled. checknewmap uses each entry as a bit number ...

Linux Distros Unpatched Vulnerability : CVE-2026-89649

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ceph: bound xattr value length in buildxattrs buildxattrs decodes the MDS-supplied xattr blob one attribute at a time. For each attribute it reads a 32-bit name...

Linux Distros Unpatched Vulnerability : CVE-2026-89646

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ceph: fix leaked inode reference on writeback abort at umount cephdirtyfolio takes a wrbuffer claim on each newly dirtied folio: it bumps iwrbufferref taking an...

Linux Distros Unpatched Vulnerability : CVE-2026-89650

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ceph: bound numexporttargets array for mds info v2/v3 cephmdsmapdecode in fs/ceph/mdsmap.c reads numexporttargets from each per-mds info record and advances the...

Linux Distros Unpatched Vulnerability : CVE-2026-89648

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ceph: cap delegated inode count in cephparsedeleginos cephparsedeleginos decodes interval sets of delegated inode numbers from an MDS create-with-delegation...

Linux Distros Unpatched Vulnerability : CVE-2026-89656

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libceph: reject buckets with mismatched CRUSH ids crushdecode stores bucket data by array slot, and the mapper later derives the per-bucket workspace index from...

Linux Distros Unpatched Vulnerability : CVE-2026-89647

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ceph: do not repeat cephtrimdentries if no progress possible cephcapreclaimwork re-queues itself for as long as cephtrimdentries returns -EAGAIN, which happens...

Linux Distros Unpatched Vulnerability : CVE-2026-89655

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ceph: fix UAF in kickflushingcaps on cf entry freed during unlock listforeachentry iterates ci-icapflushlist but drops icephlock to send cap messages. During th...

Linux Distros Unpatched Vulnerability : CVE-2026-89654

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ceph: fix UAF in checknewmap on session freed during unlock checknewmap iterates mdsc-sessions and for each active session drops mdsc-mutex to perform per-sessi...

Linux Distros Unpatched Vulnerability : CVE-2026-89657

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libceph: validate OSD extent maps before cursor advance net/ceph/osdclient.c:osdsparseread validates that the sparse-read data length matches the summed extent...

Linux Distros Unpatched Vulnerability : CVE-2026-89652

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ceph: bound copied dentry name length in NFS export getname cephgetname copies the MDS-supplied name into the caller's NAMEMAX-sized buffer with memcpyname,...

CVE-2026-89653

A flaw was found in the Linux kernel's Ceph filesystem. This vulnerability occurs when a malicious or malformed MDSMap exporttargets entry, controlled by a monitor, contains a rank value that exceeds the maximum allowed CEPHMAXMDS during the decoding process. This can lead to an out-of-bounds...

CVE-2026-89651

A flaw was found in the Linux kernel's Ceph client. An out-of-bounds read vulnerability exists in the handlesession function when decoding MDSCapAuth records. A malicious or compromised Metadata Server MDS can trigger this during session setup without client-side user interaction. This can force...

CVE-2026-89647

A flaw was found in the Linux kernel's Ceph file system. The cephtrimdentries function, when invoked by cephcapreclaimwork, can enter an infinite loop under specific conditions where no leases need to be reclaimed. This busy loop causes excessive CPU utilization, potentially leading to a Denial o...

CVE-2026-89655

A flaw was found in the Linux kernel's Ceph file system component. A race condition exists in the kickflushingcaps function during the handling of capability messages. This allows a separate process to free a data structure cf entry while kickflushingcaps is still iterating over it. This...

CVE-2026-89650

A flaw was found in the Linux kernel's Ceph client. A malicious or compromised Ceph monitor, or an on-path attacker, can send a specially crafted Metadata Server MDS map. This map, with an oversized numexporttargets field and a per-MDS info version of 2 or 3, can trigger an out-of-bounds read in...

CVE-2026-89654

A flaw was found in the Ceph file system component of the Linux kernel. A race condition exists in the checknewmap function during session handling. This allows a local attacker to exploit a use-after-free vulnerability by freeing a session while another thread attempts to access it. This could...

CVE-2026-89648

A flaw was found in the Linux kernel's Ceph client. A malicious or compromised Ceph Metadata Server MDS could send a specially crafted reply with an unbounded number of delegated inode intervals. This could cause the client to enter an infinite loop or exhaust memory resources, leading to a denia...