CVE-2026-90155: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ksmbd: detach blocked lock requests before freeing A filelock retained by ksmbd for byte-range lock bookkeeping can still be part of the VFS blocked-request graph. In particular, the VFS can chain a new waiter below an already...

Astra Linux – Vulnerability in Samba

A flaw was discovered in Samba, specifically in the vfsstreamsxattr module. In this module, uninitialized heap memory could be written into alternate data streams. This allows an authenticated user to read residual memory content, which may include sensitive data, resulting in an information...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: can: bcm: bcmtxsetup: fixed KMSAN uninit-value in vfswrite Syzkaller reported the following issues: ===================================================== BUG: KMSAN: uninit-value in aiorwdone fs/aio.c:1520 inline BUG: KMSAN:...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: vfs: fixed a race condition between eviceinodes and findinode&iput Hi, everyone, I recently noticed a bug in btrfs. After investigating it further, I believe it’s a race condition in vfs. Let’s assume that an inode in this case,...

Astra Linux – Vulnerability in Qemu

A issue was discovered in QEMU versions 7.1.0 through 8.2.1. The registervfs function in hw/pci/pciesriov.c mishandles the situation where a guest writes a number of NumVFs that is greater than the total number of TotalVFs, resulting in a buffer overflow in VF implementations...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: 9p: Fixed the fid refcount leak in v9fsvfsgetlink. We now check for protocol versions that are later than required, after a fid has been obtained. Simply move the version check to an earlier stage...

Astra Linux – Vulnerability in Samba

The Samba vfsfruit module utilizes extended file attributes EA, xattr to enhance compatibility with Apple SMB clients and interoperability with Netatalk 3 AFP file servers. Samba versions prior to 4.13.17, 4.14.12, and 4.15.5, when vfsfruit was configured, allowed out-of-bounds heap read and writ...

CrushFTP VFS - Sandbox Escape LFR

VFS Sandbox Escape in CrushFTP in all versions before 10.7.1 and 11.1.0 on all platforms allows remote attackers with low privileges to read files from the filesystem outside of VFS Sandbox. id: CVE-2024-4040 info: name: CrushFTP VFS - Sandbox Escape LFR author: DhiyaneshDK,pussycat0x severity:...

CVE-2026-89672

In the Linux kernel, the following vulnerability has been resolved: nfsd: gate nfs2 setacl by argp-mask The NFSACL v2 SETACL path shares the decoder convention used by its v3 sibling: nfsaclsvcdecodesetaclargs fills in argp-aclaccess only when NFSACL is set in the request mask and argp-acldefault...

GHSA-C476-6W5Q-JW77 rclone: FTP cross-session auth-proxy backend confusion

Summary The FTP auth-proxy driver stores one obscured password per username in a server-wide map. It does not bind the credential or returned VFS to the authenticated FTP session. If two accepted credentials use the same username but resolve to different proxy backends, the later login overwrites...

kernel: Revert "net/smc: Introduce TCP ULP support"

A flaw was found in the Linux kernel's TCP User-Level Protocol ULP support for SMC. This vulnerability arises when an active TCP socket is converted into an SMC socket, as the implementation attempts to modify core Virtual File System VFS structures in-place. This action violates fundamental VFS...

PT-2026-89689

Summary The FTP auth-proxy driver stores one obscured password per username in a server-wide map. It does not bind the credential or returned VFS to the authenticated FTP session. If two accepted credentials use the same username but resolve to different proxy backends, the later login overwrites...

Exploit for Improper Restriction of Operations within the Bounds of a Memory Buffer in Apple Ipados

CVE-2026-65330 — tmpfs setxattr PAC Bypass Component: XNU...

CVE-2026-74343

A flaw was found in the Linux kernel's kernfs component. Multiple superblocks with different namespaces can share the same kernfsnode, leading to a race condition during extended attribute xattr operations. The Virtual File System VFS layer's per-inode locks are insufficient to serialize concurre...

ANT-2026-6JWE6ZK7 · langchain-ai/deepagentsjs · sandbox_escape

other high Severity Claude high · Security research firm high · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis, sealed at approval. Disclosure to the maintainer was performed by Anvil Security. ANT-2026-6JWE6ZK7: VFS sandbox executes agent commands directly on host T...

UBUNTU-CVE-2026-68457

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use opener credentials for FSCTL mutations SETSPARSE, SETZERODATA and SETCOMPRESSION operate on an open SMB handle but call VFS xattr, fallocate or fileattr helpers with the current ksmbd worker credentials. Those helpers...

CVE-2026-72186 ntfs: make system files immutable to prevent corruption

In the Linux kernel, the following vulnerability has been resolved: ntfs: make system files immutable to prevent corruption When a system file such as $Bitmap is exposed via showsysfiles and written from userspace, the volume is corrupted and, because the cluster allocator scans $Bitmap through t...

Linux Distros Unpatched Vulnerability : CVE-2026-72379

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - fs: refuse OTMPFILE creation with an unmapped fsuid or fsgid vfstmpfile never checked that the caller's fsuid and fsgid map into the filesystem. On an idmapped...

PT-2026-72567

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the vfs tmpfile function where it fails to verify if the caller's fsuid and fsgid map into the filesystem. On an idmapped mount where the idmapping does not cover the...

[SECURITY] Fedora 44 Update: libnfs-6.0.2-9.fc44

The libnfs package contains a library of functions for accessing NFSv2 and NFSv3 servers from user space. It provides a low-level, asynchronous RPC library for accessing NFS protocols, an asynchronous library with POSIX-like VFS functions, and a synchronous library with POSIX-like VFS functions...