kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions

A privilege escalation vulnerability was found in the Linux kernel's CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges...

kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions

A privilege escalation vulnerability was found in the Linux kernel's CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges...

CVE-2026-46256

A flaw was found in the Linux kernel, specifically within the NFS Network File System LOCALIO optimization. This vulnerability allows for a recursion deadlock to occur during direct reclaim operations. When LOCALIO attempts to write pages back into NFS via nfswritepages, it can lead to a system...

CVE-2026-46256

Summary: The CVE-2026-46256 issue affects the Linux kernel’s NFS LOCALIO loopback optimization, where a recursion deadlock can occur during direct reclaim. The root cause is that LOCALIO page cache allocations could occur outside GFP_NOFS context, enabling unsafe recursion from NFS to the filesys...

CVE-2026-46256 NFS/localio: prevent direct reclaim recursion into NFS via nfs_writepages

In the Linux kernel, the following vulnerability has been resolved: NFS/localio: prevent direct reclaim recursion into NFS via nfswritepages LOCALIO is an NFS loopback mount optimization that avoids using the network for READ, WRITE and COMMIT if the NFS client and server are determined to be on...

PT-2026-46019

In the Linux kernel, the following vulnerability has been resolved: NFS/localio: prevent direct reclaim recursion into NFS via nfs writepages LOCALIO is an NFS loopback mount optimization that avoids using the network for READ, WRITE and COMMIT if the NFS client and server are determined to be on...

CVE-2026-41013 - Tenant-controlled comma smuggles arbitrary CIFS mount options | Cloud Foundry

HIGH CVSS 3.1 Score: 8.5 AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N Vendor CloudFoundry Foundation Versions Affected Severity is HIGH unless otherwise noted. smb-volume-release – All versions prior to v3.60.0 CF Deployment – All versions prior to v56.0.0 Description Input validation bypass in SMB volume...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP4 RT kernel was updated to fix various security issues The following security issues were fixed: CVE-2021-47103: inet: fully convert sk-skrxdst to RCU rules bsc1221010. CVE-2023-20585: x86/CPU: Fix FPDSS on Zen1 bsc1243603. CVE-2025-54518: x86/CPU/AMD: Prevent...

SUSE CVE-2026-46124

In the Linux kernel, the following vulnerability has been resolved: isofs: validate block number from NFS file handle in isofsexportiget isofsfhtodentry and isofsfhtoparent pass an attacker- controlled block number ifid-block or ifid-parentblock from the NFS file handle to isofsexportiget, which...

CVE-2026-46124

A flaw was found in the Linux kernel's isofs filesystem. An authenticated NFS Network File System peer can exploit this vulnerability by providing a specially crafted file handle. This allows the server to read arbitrary in-range blocks on the backing device, leading to information disclosure whe...

CVE-2026-46124

In the Linux kernel, the following vulnerability has been resolved: isofs: validate block number from NFS file handle in isofsexportiget isofsfhtodentry and isofsfhtoparent pass an attacker- controlled block number ifid-block or ifid-parentblock from the NFS file handle to isofsexportiget, which...

CVE-2026-46124

In the Linux kernel, the following vulnerability has been resolved: isofs: validate block number from NFS file handle in isofsexportiget isofsfhtodentry and isofsfhtoparent pass an attacker- controlled block number ifid-block or ifid-parentblock from the NFS file handle to isofsexportiget, which...

CVE-2026-46124

In the Linux kernel, the following vulnerability has been resolved: isofs: validate block number from NFS file handle in isofsexportiget isofsfhtodentry and isofsfhtoparent pass an attacker- controlled block number ifid-block or ifid-parentblock from the NFS file handle to isofsexportiget, which...

CVE-2026-46124

CVE-2026-46124 affects the Linux kernel isofs filesystem. The vulnerability arises because isofs_fh_to_dentry/isofs_fh_to_parent pass an attacker-controlled block number from an NFS file handle to isofs_export_iget(), which only rejects block == 0 before calling isofs_iget and sb_bread. A crafted...

PT-2026-44247

In the Linux kernel, the following vulnerability has been resolved: isofs: validate block number from NFS file handle in isofs export iget isofs fh to dentry and isofs fh to parent pass an attacker- controlled block number ifid-block or ifid-parent block from the NFS file handle to isofs export...

UBUNTU-CVE-2026-45983

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, cachecheck wil...

CVE-2026-45983

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, cachecheck wil...

CVE-2026-45983

nfsd: never defer requests during idmap lookup...

Ubuntu 24.04 LTS / 25.10 : Linux kernel (Azure) vulnerabilities (USN-8310-1)

"The remote Ubuntu 24.04 LTS / 25.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8310-1 advisory. It was discovered that the Linux kernel algifaead module did not properly handle in-place cryptographic operations. This flaw is known as Copy...

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...