CVE-2026-80561 libceph: fix multiple unsafe decodes in decode_locker()

In the Linux kernel, the following vulnerability has been resolved: libceph: fix multiple unsafe decodes in decodelocker decodelocker in clslockclient.c contains three unsafe decode operations that allow a malicious or compromised OSD to trigger slab-out-of-bounds reads: 1. cephdecodecopy at the...

CVE-2026-80558

This Linux kernel vulnerability affects the libceph subsystem. A corrupted osdmap received from a Ceph monitor or OSD may contain OSD indices in its primary_temp field that are greater than max_osd or smaller than CEPH_HOMELESS_OSD (-1). While most OSD indices in the osdmap are validated, the one...

CVE-2026-80558 libceph: Avoid using invalid osd indices from primary_temp

In the Linux kernel, the following vulnerability has been resolved: libceph: Avoid using invalid osd indices from primarytemp A corrupted osdmap received from a Ceph monitor or OSD may contain osd indices in its pgtemp, primarytemp, pgupmap, and pgupmapitems parts that don't exist, i.e., that are...

CVE-2026-80557 libceph: fix OOB read in decode_watchers() via missing bounds check

In the Linux kernel, the following vulnerability has been resolved: libceph: fix OOB read in decodewatchers via missing bounds check cephstartdecoding validates that structlen bytes remain in the buffer after the encoding header, but accepts structlen=0 as valid: cephdecodeneedp, end, 0, bad alwa...

CVE-2026-80557 libceph: fix OOB read in decode_watchers() via missing bounds check

In the Linux kernel, the following vulnerability has been resolved: libceph: fix OOB read in decodewatchers via missing bounds check cephstartdecoding validates that structlen bytes remain in the buffer after the encoding header, but accepts structlen=0 as valid: cephdecodeneedp, end, 0, bad alwa...

CVE-2026-80557

CVE-2026-80557 is a 4-byte out-of-bounds read in the Linux kernel's libceph client, specifically in decode_watchers(). The function calls ceph_decode_32(p) without a preceding bounds check; when a malicious or compromised OSD sends an obj_list_watch_response_t with struct_len=0, the pointer equal...

CVE-2026-80528

CVE-2026-80528 is a Linux kernel bug in the Ceph filesystem driver . The function handle_reply() stores a ceph_mds_request pointer in current->journal_info while populating inode and dentry caches from an MDS reply. If a memory allocation during this window triggers direct reclaim on a differe...

CVE-2026-80527 ceph: fix hanging __ceph_get_caps() with stale mds_wanted

In the Linux kernel, the following vulnerability has been resolved: ceph: fix hanging cephgetcaps with stale mdswanted A reader can hang forever in cephgetcaps when the client no longer holds FILERD, but local cap state still says that the capability is already wanted via mdswanted. One way to...

CVE-2026-80527

CVE-2026-80527 affects the Linux kernel's Ceph filesystem client (cephfs) . The vulnerability is in the capability state management within __ceph_get_caps(): the cap->mds_wanted field is updated before the corresponding CEPH_MSG_CLIENT_CAPS message is actually sent to the MDS, causing a stale ...

CVE-2026-80528 ceph: avoid fs reclaim while using current->journal_info

In the Linux kernel, the following vulnerability has been resolved: ceph: avoid fs reclaim while using current-journalinfo handlereply stores a cephmdsrequest pointer in current-journalinfo while filling the inode and dentry cache from an MDS reply. An allocation in this section can enter direct...

CVE-2026-80528 ceph: avoid fs reclaim while using current->journal_info

In the Linux kernel, the following vulnerability has been resolved: ceph: avoid fs reclaim while using current-journalinfo handlereply stores a cephmdsrequest pointer in current-journalinfo while filling the inode and dentry cache from an MDS reply. An allocation in this section can enter direct...

CVE-2026-80527 ceph: fix hanging __ceph_get_caps() with stale mds_wanted

In the Linux kernel, the following vulnerability has been resolved: ceph: fix hanging cephgetcaps with stale mdswanted A reader can hang forever in cephgetcaps when the client no longer holds FILERD, but local cap state still says that the capability is already wanted via mdswanted. One way to...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098951)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098951 advisory. In the Linux kernel, the following vulnerability has been resolved: libceph: Prevent potential null-ptr-deref in cephhandleauthreply If a message of type...

PT-2026-82173

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds read exists in the libceph component. The ceph start decoding function allows a struct len value of 0, which can lead to a situation where no bytes are guaranteed for...

PT-2026-82144

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Ceph component where the handle reply function stores a ceph mds request pointer in the current-journal info variable while populating the inode and dentry cache...

PT-2026-82143

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A reader can experience an indefinite hang in the ceph get caps function when the client no longer holds FILE RD but the local capability state incorrectly indicates that the capability ...

Linux Distros Unpatched Vulnerability : CVE-2026-80527

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ceph: fix hanging cephgetcaps with stale mdswanted A reader can hang forever in cephgetcaps when the client no longer holds FILERD, but local cap state still...

Linux Distros Unpatched Vulnerability : CVE-2026-80561

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libceph: fix multiple unsafe decodes in decodelocker decodelocker in clslockclient.c contains three unsafe decode operations that allow a malicious or compromis...

Linux Distros Unpatched Vulnerability : CVE-2026-80557

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libceph: fix OOB read in decodewatchers via missing bounds check cephstartdecoding validates that structlen bytes remain in the buffer after the encoding header...

Linux Distros Unpatched Vulnerability : CVE-2026-80528

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ceph: avoid fs reclaim while using current-journalinfo handlereply stores a cephmdsrequest pointer in current-journalinfo while filling the inode and dentry cac...