CVE-2026-89651 ceph: bound MDSCapAuth path and fs_name decode in handle_session()

In the Linux kernel, the following vulnerability has been resolved: ceph: bound MDSCapAuth path and fsname decode in handlesession handlesession decodes the MDSCapAuth records carried by a CEPHSESSIONOPEN message msgversion = 6. For each record the match.path and match.fsname byte strings are rea...

EUVD-2026-76563

In the Linux kernel, the following vulnerability has been resolved: ceph: bound MDSCapAuth path and fsname decode in handlesession handlesession decodes the MDSCapAuth records carried by a CEPHSESSIONOPEN message msgversion = 6. For each record the match.path and match.fsname byte strings are rea...

CVE-2026-89651

In the Linux kernel, the following vulnerability has been resolved: ceph: bound MDSCapAuth path and fsname decode in handlesession handlesession decodes the MDSCapAuth records carried by a CEPHSESSIONOPEN message msgversion = 6. For each record the match.path and match.fsname byte strings are rea...

CVE-2026-89651 ceph: bound MDSCapAuth path and fs_name decode in handle_session()

In the Linux kernel, the following vulnerability has been resolved: ceph: bound MDSCapAuth path and fsname decode in handlesession handlesession decodes the MDSCapAuth records carried by a CEPHSESSIONOPEN message msgversion = 6. For each record the match.path and match.fsname byte strings are rea...

CVE-2026-89651

CVE-2026-89651 is an out-of-bounds read in the Linux kernel's Ceph MDS client during session setup. In handle_session(), the match.path and match.fs_name byte strings are decoded with the bare ceph_decode_copy() without a preceding ceph_decode_need() bounds check, and the enclosing MDSCapAuth/MDS...

CVE-2026-89650 ceph: bound num_export_targets array for mds info v2/v3

In the Linux kernel, the following vulnerability has been resolved: 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 decode cursor by numexporttargets sizeofu32 without first checking...

CVE-2026-89650

In the Linux kernel, the following vulnerability has been resolved: 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 decode cursor by numexporttargets sizeofu32 without first checking...

CVE-2026-89650 ceph: bound num_export_targets array for mds info v2/v3

In the Linux kernel, the following vulnerability has been resolved: 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 decode cursor by numexporttargets sizeofu32 without first checking...

CVE-2026-89650

CVE-2026-89650 is a slab-out-of-bounds read in the Linux kernel's CephFS client , specifically in ceph_mdsmap_decode() (fs/ceph/mdsmap.c). When decoding an MDS map with per-MDS info version 2 or 3, the function advances the decode cursor by num_export_targets * sizeof(u32) without verifying remai...

EUVD-2026-76562

In the Linux kernel, the following vulnerability has been resolved: 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 decode cursor by numexporttargets sizeofu32 without first checking...

CVE-2026-89648 ceph: cap delegated inode count in ceph_parse_deleg_inos()

In the Linux kernel, the following vulnerability has been resolved: ceph: cap delegated inode count in cephparsedeleginos cephparsedeleginos decodes interval sets of delegated inode numbers from an MDS create-with-delegation reply. For each set it reads a 64-bit start and a 64-bit len with...

CVE-2026-89648

CVE-2026-89648 affects the Linux kernel Ceph client in the function ceph_parse_deleg_inos(). When decoding delegated-inode intervals from an MDS create-with-delegation reply, the 64-bit len field is fully attacker-controlled and was previously unbounded. A malicious or compromised Ceph MDS can se...

CVE-2026-89648 ceph: cap delegated inode count in ceph_parse_deleg_inos()

In the Linux kernel, the following vulnerability has been resolved: ceph: cap delegated inode count in cephparsedeleginos cephparsedeleginos decodes interval sets of delegated inode numbers from an MDS create-with-delegation reply. For each set it reads a 64-bit start and a 64-bit len with...

CVE-2026-89648

In the Linux kernel, the following vulnerability has been resolved: ceph: cap delegated inode count in cephparsedeleginos cephparsedeleginos decodes interval sets of delegated inode numbers from an MDS create-with-delegation reply. For each set it reads a 64-bit start and a 64-bit len with...

EUVD-2026-76560

In the Linux kernel, the following vulnerability has been resolved: ceph: cap delegated inode count in cephparsedeleginos cephparsedeleginos decodes interval sets of delegated inode numbers from an MDS create-with-delegation reply. For each set it reads a 64-bit start and a 64-bit len with...

PT-2026-90368

In the Linux kernel, the following vulnerability has been resolved: ceph: bound copied dentry name length in NFS export get name ceph get name copies the MDS-supplied name into the caller's NAME MAX-sized buffer with memcpyname, rinfo-dname, rinfo-dname len and then writes namerinfo-dname len = 0...

PT-2026-90367

In the Linux kernel, the following vulnerability has been resolved: ceph: bound MDSCapAuth path and fs name decode in handle session handle session decodes the MDSCapAuth records carried by a CEPH SESSION OPEN message msg version = 6. For each record the match.path and match.fs name byte strings...

PT-2026-90366

In the Linux kernel, the following vulnerability has been resolved: ceph: bound num export targets array for mds info v2/v3 ceph mdsmap decode in fs/ceph/mdsmap.c reads num export targets from each per-mds info record and advances the decode cursor by num export targets sizeofu32 without first...

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...