CVE-2026-45983

nfsd: never defer requests during idmap lookup...

PT-2026-43850

In the Linux kernel, the following vulnerability has been resolved: nfsd: never defer requests during idmap lookup During v4 request compound arg decoding, some ops e.g. SETATTR can trigger idmap lookup upcalls. When those upcall responses get delayed beyond the allowed time limit, cache check wi...

CVE-2026-43394

CVE-2026-43394 (Linux kernel) : A local credential reference leak in nfsd_nl_listener_set_doit() occurs because get_current_cred() is used without a corresponding put_cred(). The function runs in process context during sendmsg(), and current->cred remains valid, so the extra refcount is unnece...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-006595)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006595 advisory. In the Linux kernel, the following vulnerability has been resolved: NFSD: Avoid calling OPDESC with ops-opnum == OPILLEGAL OPDESC simply indexes into nfsd4ops by the...

CVE-2026-22989

In the Linux kernel, the following vulnerability has been resolved: nfsd: check that server is running in unlockfilesystem If we are trying to unlock the filesystem via an administrative interface and nfsd isn't running, it crashes the server. This happens currently because nfsd4revokestates acce...

PT-2025-49453

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel’s Network File System Daemon NFSD does not properly handle requests for new time deleg FATTR4 attributes introduced in newer NFS specifications. Specifically, NFSv4...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: nfsd: handle getclientlocked failure in nfsd4setclientidconfirm CVE-2025-38724 kernel: smb: client: fix race with concurrent opens in rename2 CVE-2025-39825 kernel: mm/memory-failure: fix...

CVE-2025-40087 NFSD: Define a proc_layoutcommit for the FlexFiles layout type

In the Linux kernel, the following vulnerability has been resolved: NFSD: Define a proclayoutcommit for the FlexFiles layout type Avoid a crash if a pNFS client should happen to send a LAYOUTCOMMIT operation on a FlexFiles layout...

PT-2025-40674

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel's Network File System Daemon NFSD related to handling RPC calls in NFSv3 READDIR operations. The issue stems from a potential send buffer overflow that...

PT-2025-37682

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The Linux kernel contains an issue where the op release function is not consistently called, even when op func returns an error. This can lead to a memory leak in the layoutget codepat...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from nfsd not properly initializing ssc resulting in laundromatwork null pointer dereference...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel, which originates from nfsd ignoring the svcprocregister return code...

DEBIAN-CVE-2022-49279

In the Linux kernel, the following vulnerability has been resolved: NFSD: prevent integer overflow on 32 bit systems On a 32 bit system, the "len sizeofp" operation can have an integer overflow...

CVE-2024-53146 NFSD: Prevent a potential integer overflow

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent a potential integer overflow If the tag length is = U32MAX - 3 then the "length + 4" addition can result in an integer overflow. Address this by splitting the decoding into several steps so that decodecbcompound4res...

kernel: NFSD: Protect against send buffer overflow in NFSv2 READ

In the Linux kernel, the following vulnerability has been resolved: NFSD: Protect against send buffer overflow in NFSv2 READ Since before the git era, NFSD has conserved the number of pages held by each nfsd thread by combining the RPC receive and send buffers into a single array of pages. This...

kernel: nfsd buffer overflow by RPC message over TCP with garbage data

A buffer overflow flaw was found in the Linux kernel nfsd network file system subsystem. The way a user sends RPC over TCP with excess data added at the end of the message could allow a remote user to starve the resources, causing a denial of service...

The Linux kernel NFSD implementation prior to versions 5.19.17 and 6.0.2 are vulnerable to buffer overflow. NFSD tracks the number of pages held by each NFSD thread by combining the receive and send buffers of a remote procedure call (RPC) into a single array of pages. A client can force the send buffer to shrink by sending an RPC message over TCP with garbage data added at the end of the message. The RPC message with garbage data is still correctly formed according to the specification and is passed forward to handlers. Vulnerable code in NFSD is not expecting the oversized request and writes beyond the allocated buffer space. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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UBUNTU-CVE-2022-43945

The Linux kernel NFSD implementation prior to versions 5.19.17 and 6.0.2 are vulnerable to buffer overflow. NFSD tracks the number of pages held by each NFSD thread by combining the receive and send buffers of a remote procedure call RPC into a single array of pages. A client can force the send...

An out-of-bounds (OOB) memory write flaw was found in the NFSD in the Linux kernel. Missing sanity may lead to a write beyond bmval[bmlen-1] in nfsd4_decode_bitmap4 in fs/nfsd/nfs4xdr.c. In this flaw a local attacker with user privilege may gain access to out-of-bounds memory leading to a system integrity and confidentiality threat.

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