CVE-2026-72315

The CVE-2026-72315 entry documents a Linux kernel issue in the CIFS/SMB client where a delayed release of a dentry reference count during unmount after DIO could trigger a busy-dentry warning. A fix was implemented in cifs_kill_sb() by flushing deferredclose_wq, and later the problem in the DIO p...

PT-2026-72498

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix overflow in passthrough ioctl bounds check smb2 ioctl query info validates the PASSTHRU FSCTL response payload before copying it to userspace. The payload offset and length both come from 32-bit fields. The bound...

PT-2026-72503

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix busy dentry warning on unmount after DIO Commit c68337442f03 "cifs: Fix busy dentry used after unmounting" fixed the issue in cifs where deferred close of a file led to a dentry reference count not being released...

PT-2026-72544

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix missing credit release on failure in cifs issue read Fix missing release of credits in the failure path in cifs issue read lest retrying the subreq just overwrites the credits value...

Linux Distros Unpatched Vulnerability : CVE-2026-72318

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - cifs: validate DFS referral string offsets parsedfsreferrals validates that the response header and referral array fit in the received buffer, but each referral...

PT-2026-72506

In the Linux kernel, the following vulnerability has been resolved: cifs: validate DFS referral string offsets parse dfs referrals validates that the response header and referral array fit in the received buffer, but each referral also contains string offsets supplied by the server. Those offsets...

PT-2026-72695

In the Linux kernel, the following vulnerability has been resolved: cifs: remove all cifs files before kill super Cifs files may be put into fileinfo put wq during umounting cifs. After umount done, cifsFileInfo put final is called, which cause following BUG: BUG: kernel NULL pointer dereference,...

Linux Distros Unpatched Vulnerability : CVE-2026-72315

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - smb: client: fix busy dentry warning on unmount after DIO Commit c68337442f03 cifs: Fix busy dentry used after unmounting fixed the issue in cifs where deferred...

kernel: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath

A flaw was found in the Linux kernel's CIFS Common Internet File System client. When the cifssanitizeprepath function processes specially crafted input, such as an empty string or a string containing only delimiters, it can attempt to read data beyond its allocated memory buffer. This out-of-boun...

kernel: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath

A flaw was found in the Linux kernel's CIFS Common Internet File System client. When the cifssanitizeprepath function processes specially crafted input, such as an empty string or a string containing only delimiters, it can attempt to read data beyond its allocated memory buffer. This out-of-boun...

CVE-2026-68312

A flaw was found in the Linux kernel's Common Internet File System CIFS implementation. When a deferred file close operation is cancelled and memory allocation fails under pressure, a cifsFileInfo reference and an open server handle can leak. This resource leak could potentially lead to a Denial ...

CVE-2026-68312

In the Linux kernel, the following vulnerability has been resolved: cifs: fix cifsFileInfo leak on kmalloc failure in deferred close drain paths In cifsclosedeferredfile, cifsclosealldeferredfiles, and cifsclosedeferredfileunderdentry, when a pending deferred close is cancelled via...

UBUNTU-CVE-2026-68312

In the Linux kernel, the following vulnerability has been resolved: cifs: fix cifsFileInfo leak on kmalloc failure in deferred close drain paths In cifsclosedeferredfile, cifsclosealldeferredfiles, and cifsclosedeferredfileunderdentry, when a pending deferred close is cancelled via...

CVE-2026-68312

In the Linux kernel, the following vulnerability has been resolved: cifs: fix cifsFileInfo leak on kmalloc failure in deferred close drain paths In cifsclosedeferredfile, cifsclosealldeferredfiles, and cifsclosedeferredfileunderdentry, when a pending deferred close is cancelled via...

CVE-2026-68312 cifs: fix cifsFileInfo leak on kmalloc failure in deferred close drain paths

In the Linux kernel, the following vulnerability has been resolved: cifs: fix cifsFileInfo leak on kmalloc failure in deferred close drain paths In cifsclosedeferredfile, cifsclosealldeferredfiles, and cifsclosedeferredfileunderdentry, when a pending deferred close is cancelled via...

CVE-2026-68312 cifs: fix cifsFileInfo leak on kmalloc failure in deferred close drain paths

In the Linux kernel, the following vulnerability has been resolved: cifs: fix cifsFileInfo leak on kmalloc failure in deferred close drain paths In cifsclosedeferredfile, cifsclosealldeferredfiles, and cifsclosedeferredfileunderdentry, when a pending deferred close is cancelled via...

kernel: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath

A flaw was found in the Linux kernel's CIFS Common Internet File System client. When the cifssanitizeprepath function processes specially crafted input, such as an empty string or a string containing only delimiters, it can attempt to read data beyond its allocated memory buffer. This out-of-boun...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: smb: client: fixed a memory leak in cifsconstructtcon When using a multiuser mount with domain= specified and cifscreds, cifssetcifscreds will set @ctx-domainname, so it needs to be freed before leaving cifsconstructtcon. This...

MiracleLinux 9 : cifs-utils-7.6-2.el9_8 (AXSA:2026-1506:05)

The remote MiracleLinux 9 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-1506:05 advisory. cifs-utils: local privilege escalation via forged cifs.spnego key description in cifs.upcall CVE-2026-12505 Tenable has extracted the preceding description...

Photon OS 5.0: Cifs PHSA-2025-5.0-91-0691

An update of the cifs package has been released. %NASLMINLEVEL 80900 C Tenable, Inc. The descriptive text and package checks in this plugin were extracted from VMware Security Advisory PHSA-2025-5.0-91-0691. The text itself is copyright C VMware, Inc. include'compat.inc'; if description...