CVE-2026-31402

🛡️ CVE-2026-31402 – NFSv4 LOCK Replay Cache Heap Overflow CVE-2026-31402: Linux NFS Bug Hidden for 23 Years 📌 Overview CVE-2026-31402 is a heap overflow vulnerability in the NFSv4.0 LOCK replay cache of the Linux kernel. It arises due to improper handling of responses larger than the fixed buffer...

CVE-2026-90151

A flaw was found in the Linux kernel's Network File System version 4 NFSv4 component. This vulnerability occurs when an NFSv4 client allocation fails, leaving a stale pointer to a freed client. A local attacker could potentially exploit this use-after-free condition by triggering a callback looku...

CVE-2026-90149

A flaw was found in the Linux kernel's NFSv4 Network File System version 4 flexfiles implementation. When an NFSv4.0 data server is used, two code paths incorrectly assume the client has a session, leading to a NULL pointer dereference. This issue can cause the kernel to crash, resulting in a...

CVE-2026-90148

A flaw was found in the Linux kernel's NFSv4 component. When the nfs4addlease function races with a delegation return, it can pass an incorrect, potentially null, argument to nfs4deletelease. This incorrect argument eventually leads to a null pointer dereference, which could allow a local attacke...

CVE-2026-90102

A flaw was found in the Linux kernel's NFSv4/pnfs component. The data server cache is incorrectly keyed only on the multipath address set, without considering the NFS version. This oversight allows different NFS versions to share the same internal data structure when two device IDs on one address...

CVE-2026-108982

The VeraCrypt 1.26.29 (FUSE-T build) on macOS contains a vulnerability where the FUSE-T auxiliary service (go-nfsv4) and its helper processes fail to terminate upon volume dismounting. This incomplete cleanup allows the auxiliary mount to continue serving the decrypted volume image (volume.dmg ) ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: NFSv4/pnfs: The key for the data server cache in the NFS version. The nfs4pnfsdsadd function keys the per-net data server cache on the multipath address set alone, and the struct nfs4pnfsds record does not specify a version...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: NFSv4/flexfiles: rejecting a zero filehandle-version count The fflayoutalloclseg function decodes the count of the filehandle-version array from the flexfiles layout body. This value is used as the count for kzallocobjs, and the...

K000163508: Linux kernel vulnerability CVE-2026-53392

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: NFSv4/flexfiles: reject zero filehandle version count fflayoutalloclseg decodes the filehandle-version array count from the flexfiles layout body. The value is used as the count for kzallocobjs, and...

CentOS Linux 7 [TuxCare] Security Update: bpftool / kernel / kernel-debug / kernel-debug-devel / kernel-devel / etc Multiple Vulnerabilities (CENTOS7:CLSA-2026:1775657929)

The CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS7:CLSA-2026:1775657929 advisory. - In the Linux kernel, the following vulnerability has been resolved: ovl: Filter invalid inodes with missing lookup function Add a chec...

CentOS Linux 6 [TuxCare] Security Update: kernel / kernel-abi-whitelists / kernel-debug / kernel-debug-devel / etc Multiple Vulnerabilities (CENTOS6:CLSA-2026:1787292891)

The CentOS Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS6:CLSA-2026:1787292891 advisory. - In the Linux kernel, the following vulnerability has been resolved: NFSv4: include MAYWRITE in open permission mask for OTRUNC POSIX...

SUSE CVE-2026-90149

In the Linux kernel, the following vulnerability has been resolved: NFSv4/flexfiles: fix NULL dereference for NFSv4.0 data servers flexfiles accepts NFSv4.0 data servers, but two NFSv4 code paths assume the data server client has a session. Unlike NFSv4.1+, an NFSv4.0 client has no session...

SUSE CVE-2026-90148

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fix incorrect argument passed to nfs4deletelease in nfs4addlease When nfs4addlease races with a delegation return, it calls nfs4deletelease to clean up. Previously, it passed priv, which can legitimately be NULL. Passing a...

SUSE CVE-2026-90151

In the Linux kernel, the following vulnerability has been resolved: NFSv4: remove callback IDR entry on client allocation failure nfs4allocclient allocates an NFSv4.0 callback identifier before it finishes setting up the client. If any later initialization step fails, the error path frees the...

K000163351: Linux kernel vulnerabilities CVE-2026-45852 and CVE-2026-53391

Security Advisory Description CVE-2026-45852 In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix double free in rxesrqfrominit In rxesrqfrominit, the queue pointer 'q' is assigned to 'srq-rq.queue' before copying the SRQ number to user space. If copytouser fails, the...

SUSE CVE-2026-90102

In the Linux kernel, the following vulnerability has been resolved: NFSv4/pnfs: key the data server cache on the NFS version nfs4pnfsdsadd keys the per-net data server cache on the multipath address set alone, and struct nfs4pnfsds records no version. That suffices for the files layout driver,...

Linux Distros Unpatched Vulnerability : CVE-2026-90151

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NFSv4: remove callback IDR entry on client allocation failure nfs4allocclient allocates an NFSv4.0 callback identifier before it finishes setting up the client...

Linux Distros Unpatched Vulnerability : CVE-2026-90148

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NFSv4: Fix incorrect argument passed to nfs4deletelease in nfs4addlease When nfs4addlease races with a delegation return, it calls nfs4deletelease to clean up...

Linux Distros Unpatched Vulnerability : CVE-2026-90149

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NFSv4/flexfiles: fix NULL dereference for NFSv4.0 data servers flexfiles accepts NFSv4.0 data servers, but two NFSv4 code paths assume the data server client ha...

Linux Distros Unpatched Vulnerability : CVE-2026-90102

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NFSv4/pnfs: key the data server cache on the NFS version nfs4pnfsdsadd keys the per-net data server cache on the multipath address set alone, and struct...