CVE-2026-89649

A flaw was found in the Linux kernel's Ceph file system CephFS component. A malicious or compromised metadata server can manipulate the length of an extended attribute xattr value, causing the system to read beyond the intended memory boundary. This out-of-bounds read allows a local user to acces...

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...

CVE-2026-89649

CVE-2026-89649 affects the Linux kernel's CephFS subsystem. The function __build_xattrs() decodes xattr blobs supplied by the Ceph metadata server (MDS) but fails to verify that the final attribute's value length does not exceed the remaining bytes in the blob — it advances the pointer with a bar...

CVE-2026-89649 ceph: bound xattr value length in __build_xattrs()

In the Linux kernel, the following vulnerability has been resolved: 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 length, advances past the name bytes, reads a 32-bit value length,...

PT-2026-90365

In the Linux kernel, the following vulnerability has been resolved: ceph: bound xattr value length in build xattrs build xattrs decodes the MDS-supplied xattr blob one attribute at a time. For each attribute it reads a 32-bit name length, advances past the name bytes, reads a 32-bit value length,...

PT-2026-90364

In the Linux kernel, the following vulnerability has been resolved: ceph: cap delegated inode count in ceph parse deleg inos ceph parse deleg inos 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...

kernel: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr

A flaw was found in the Linux kernel's NFSv4/pNFS implementation. The nfs4decodempdsaddr function, responsible for decoding network address information, does not properly handle zero-length raddr opaque data. A malicious or compromised metadata server can exploit this by providing a zero-length...

kernel: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr

A flaw was found in the Linux kernel's NFSv4/pNFS implementation. The nfs4decodempdsaddr function, responsible for decoding network address information, does not properly handle zero-length raddr opaque data. A malicious or compromised metadata server can exploit this by providing a zero-length...

kernel: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr

A flaw was found in the Linux kernel's NFSv4/pNFS implementation. The nfs4decodempdsaddr function, responsible for decoding network address information, does not properly handle zero-length raddr opaque data. A malicious or compromised metadata server can exploit this by providing a zero-length...

CVE-2026-43420

In the Linux kernel, the following vulnerability has been resolved: ceph: fix inlink underrun during async unlink During async unlink, we drop the inlink counter before we receive the completion that will eventually update the inlink because "we assume that the unlink will succeed". That is not a...

UBUNTU-CVE-2026-43420

In the Linux kernel, the following vulnerability has been resolved: ceph: fix inlink underrun during async unlink During async unlink, we drop the inlink counter before we receive the completion that will eventually update the inlink because "we assume that the unlink will succeed". That is not a...

CVE-2026-43420 ceph: fix i_nlink underrun during async unlink

In the Linux kernel, the following vulnerability has been resolved: ceph: fix inlink underrun during async unlink During async unlink, we drop the inlink counter before we receive the completion that will eventually update the inlink because "we assume that the unlink will succeed". That is not a...

CVE-2026-43420

In the Linux kernel, the following vulnerability has been resolved: ceph: fix inlink underrun during async unlink During async unlink, we drop the inlink counter before we receive the completion that will eventually update the inlink because "we assume that the unlink will succeed". That is not a...

UBUNTU-CVE-2026-23189

In the Linux kernel, the following vulnerability has been resolved: ceph: fix NULL pointer dereference in cephmdsauthmatch The CephFS kernel client has regression starting from 6.18-rc1. We have issue in cephmdsauthmatch if fsname == NULL: const char fsname = mdsc-fsc-mountoptions-mdsnamespace;...

PT-2026-8197

Name of the Vulnerable Software and Affected Versions Linux kernel versions 6.18-rc1 and later Description The CephFS kernel client contains a flaw in the ceph mds auth match function where a NULL pointer dereference can occur if fs name is NULL. This issue arises during authorization checks with...

EUVD-2019-6808

Malware in sbrugna...

Authentication Bypass Using an Alternate Path or Channel

Overview Affected versions of this package are vulnerable to Authentication Bypass Using an Alternate Path or Channel via the /api/user/updateuser endpoint. An attacker can gain unauthorized access by exploiting this endpoint to bypass authentication mechanisms. Remediation Upgrade...

SUSE CVE-2025-39927

In the Linux kernel, the following vulnerability has been resolved: ceph: fix race condition validating rparent before applying state Add validation to ensure the cached parent directory inode matches the directory info in MDS replies. This prevents client-side race conditions where concurrent...

AZL-71891 CVE-2025-39927 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: ceph: fix race condition validating rparent before applying state Add validation to ensure the cached parent directory inode matches the directory info in MDS replies. This prevents client-side race conditions where concurrent...

CVE-2025-39927

CVE-2025-39927 relates to Ceph in the Linux kernel where a race condition could cause r_parent to reference the wrong directory when processing MDS replies. The fix adds validation to ensure the cached parent inode matches the MDS-provided directory info before applying state changes, preventing ...