CVE-2026-89671

A flaw was found in the Linux kernel's Network File System version 3 NFSv3 server daemon nfsd. The nfsd3procsetacl function unconditionally processes Access Control List ACL update requests, even when the client's request does not specify an ACL to be set. A remote attacker could exploit this by...

CVE-2026-89691

A flaw was found in the Linux kernel's Network File System Daemon nfsd component. The nfsd4releasecompoundargs function does not properly clear an internal counter opcnt when releasing a buffer. This oversight can lead to an out-of-bounds read, allowing an attacker to access adjacent memory and...

CVE-2026-89674

A flaw was found in the nfsd component of the Linux kernel. Incorrect calculations in the XDR External Data Representation buffer size within the nfsd4ffencodelayoutget function can lead to two critical issues. An attacker could potentially exploit this to write data beyond the intended memory...

CVE-2026-89695

A flaw was found in the Linux kernel's Network File System Daemon nfsd. The nfsd4decodeposixacl function, responsible for decoding POSIX Access Control Lists ACLs, does not properly cap the entry count received from a client. A remote attacker can exploit this by sending a specially crafted ACL...

CVE-2026-89706

A flaw was found in the Linux kernel's nfsd component. When an asynchronous async copy writeback operation fails, the server's write verifier is not properly reset. This can lead to a client incorrectly assuming that data has been made durable, resulting in the silent loss of data that was intend...

CVE-2026-89661

A flaw was found in the Linux kernel's Network File System Daemon NFSD. A local administrator with CAPSYSADMIN capabilities can trigger a use-after-free vulnerability by writing to /proc/fs/nfsd/unlockfilesystem after the NFSD server has shut down. This can lead to memory corruption, potentially...

CVE-2026-89688

A flaw was found in the Linux kernel's nfsd component. During a seqidop replay retry, the system incorrectly handles reference counts for stateowners, leading to a reference count underflow and a use-after-free vulnerability. This issue could allow an attacker to potentially cause a denial of...

CVE-2026-89683

A flaw was found in the Linux kernel's nfsd NFS daemon. A remote attacker could exploit this vulnerability by sending a specially crafted NFSv3 filehandle targeting a V4ROOT export's file system identifier fsid. This action triggers a dentry reference leak, which can lead to resource exhaustion a...

CVE-2026-89680

A flaw was found in the Linux kernel's nfsd component. This vulnerability occurs when an inter-server COPY operation fails during its setup phase, leading to improper resource cleanup. Consequently, each failed operation results in a memory leak, consuming system resources. A remote attacker coul...

CVE-2026-89704

A flaw was found in the Linux kernel's nfsd component. The nfsdcopyfilerange function incorrectly samples the writeback error cursor after the copy loop. This allows a concurrent write operation to advance the error cursor prematurely. As a result, the system may report that data has been...

CVE-2026-89676

A flaw was found in the Linux kernel's Network File System Daemon nfsd component. When performing an asynchronous async copy operation, a programming error causes a stale identifier IDR entry to point to memory that has already been reused. This can lead to memory corruption, where the system...

CVE-2026-89675

A flaw was found in the Linux kernel's nfsd component. A race condition exists during asynchronous copy cancellation and shutdown operations, which can lead to a Use-After-Free UAF vulnerability. This allows an async copy object to be freed or used after being freed, potentially causing memory...

CVE-2026-89685

A flaw was found in the Linux kernel's Network File System NFS daemon nfsd. A clock domain mismatch in the clientsstillreclaiming function allows a remote attacker to indefinitely hold the server in a grace period. By sending specific CLAIMPREVIOUS OPEN requests, an attacker can block all...

CVE-2026-89712

A flaw was found in the Linux kernel's Network File System Daemon NFSD component. A race condition exists where, during the processing of unmounted source-server mounts, a thread may temporarily release a lock. During this window, another NFS Remote Procedure Call RPC thread can free memory that...

CVE-2026-89698

A flaw was found in the Linux kernel's nfsd component. When an IPv6 NFS client is connected, the nfsdgenlrpcstatuscomposemsg function incorrectly handles address fields, leading to an out-of-bounds read. A local unprivileged attacker can exploit this vulnerability to disclose sensitive kernel...

CVE-2026-89663

A flaw was found in the Linux kernel's Network File System Daemon nfsd. This vulnerability arises from improper handling of "copy-notify stateids" during their revocation. When a stateid's reference is dropped without unlinking it, the memory can be freed while still in use by a reader, leading t...

CVE-2026-89709

A flaw was found in the Linux kernel's lockd and nfsd components. An unguarded dereference of nlmsvcops after the nfsd module is removed can lead to a NULL pointer dereference or a use-after-free condition. This vulnerability could allow a local attacker to cause a denial of service...

CVE-2026-89678

A flaw was found in the Linux kernel's Network File System NFS daemon nfsd component. The nfsddirectwrite function, responsible for handling direct writes, incorrectly detects partial writes. This issue occurs because the logic for detecting short writes compares the actual bytes written against ...

CVE-2026-89699

A flaw was found in the Linux kernel's Network File System Daemon nfsd when handling NFSv4 CREATE operations. A remote attacker can exploit this by sending a crafted request with an oversized symbolic link symlink target length. This unbounded length can force the kernel to allocate a large amoun...

CVE-2026-89697

A flaw was found in the Linux kernel's Network File System Daemon nfsd. When setting file attributes using nfsdprocsetattr, a specific code path BOTHTIMESET branch prematurely verifies file handles. This bypasses a critical write verification step fhwantwrite, allowing file attribute changes to...