CVE-2026-64137

A flaw was found in the Linux kernel's Common Internet File System CIFS client. This vulnerability allows an unprivileged local user to send witness notifications or join a specific multicast group without proper administrative privileges. Exploiting this flaw could lead to information disclosure...

CVE-2026-64136

In the Linux kernel, the following vulnerability has been resolved: smb: client: protect tccount increment in smb2findsmbsesstconunlocked Commit 96c4af418586 "cifs: Fix locking usage for tcon fields" refactored cifs code to change cifstcpseslock for tclock around tccount changes. There was missin...

CVE-2026-64137

In the Linux kernel, the following vulnerability has been resolved: smb: client: require net admin for CIFS SWN netlink CIFSGENLCMDSWNNOTIFY is the userspace witness-notify command. The intended sender is the cifs.witness helper, but the generic-netlink operation currently has no capability flag,...

EUVD-2026-45822

In the Linux kernel, the following vulnerability has been resolved: smb: client: require net admin for CIFS SWN netlink CIFSGENLCMDSWNNOTIFY is the userspace witness-notify command. The intended sender is the cifs.witness helper, but the generic-netlink operation currently has no capability flag,...

CVE-2026-64137 smb: client: require net admin for CIFS SWN netlink

In the Linux kernel, the following vulnerability has been resolved: smb: client: require net admin for CIFS SWN netlink CIFSGENLCMDSWNNOTIFY is the userspace witness-notify command. The intended sender is the cifs.witness helper, but the generic-netlink operation currently has no capability flag,...

CVE-2026-64137

In the Linux kernel, the following vulnerability has been resolved: smb: client: require net admin for CIFS SWN netlink CIFSGENLCMDSWNNOTIFY is the userspace witness-notify command. The intended sender is the cifs.witness helper, but the generic-netlink operation currently has no capability flag,...

CVE-2026-64137 smb: client: require net admin for CIFS SWN netlink

In the Linux kernel, the following vulnerability has been resolved: smb: client: require net admin for CIFS SWN netlink CIFSGENLCMDSWNNOTIFY is the userspace witness-notify command. The intended sender is the cifs.witness helper, but the generic-netlink operation currently has no capability flag,...

CVE-2026-64136

In the Linux kernel, the following vulnerability has been resolved: smb: client: protect tccount increment in smb2findsmbsesstconunlocked Commit 96c4af418586 "cifs: Fix locking usage for tcon fields" refactored cifs code to change cifstcpseslock for tclock around tccount changes. There was missin...

CVE-2026-64108 cifs: Fix busy dentry used after unmounting

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix busy dentry used after unmounting Since commit 340cea84f691c "cifs: open files should not hold ref on superblock", cifs file only holds the dentry refcnt, the cifs file close workcfile-deferred could be executed after...

CVE-2026-64108

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix busy dentry used after unmounting Since commit 340cea84f691c "cifs: open files should not hold ref on superblock", cifs file only holds the dentry refcnt, the cifs file close workcfile-deferred could be executed after...

CVE-2026-64108

The CVE-2026-64108 entry documents a Linux kernel CIFS issue where a cifs file close work (cfile->deferred) could run after unmount, leaving a dentry still in use during shutdown. Root cause: after dentry ref counting changes, the deferred close may execute post-unmount, triggering a warning i...

CVE-2026-64061 netfs: Fix early put of sink folio in netfs_read_gaps()

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix early put of sink folio in netfsreadgaps Fix netfsreadgaps to release the sink page it uses after waiting for the request to complete. The way the sink page is used is that an ITERBVEC-class iterator is created that ha...

CVE-2026-63909 ksmbd: OOB read regression in smb_check_perm_dacl() ACE-walk loops

In the Linux kernel, the following vulnerability has been resolved: ksmbd: OOB read regression in smbcheckpermdacl ACE-walk loops Commit d07b26f39246 "ksmbd: require minimum ACE size in smbcheckpermdacl" introduced a transposed bounds check: if offsetofstruct smbace, sid + acessize size offset 2...

PT-2026-61454

In the Linux kernel, the following vulnerability has been resolved: smb: client: require net admin for CIFS SWN netlink CIFS GENL CMD SWN NOTIFY is the userspace witness-notify command. The intended sender is the cifs.witness helper, but the generic-netlink operation currently has no capability...

PT-2026-61378

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix early put of sink folio in netfs read gaps Fix netfs read gaps to release the sink page it uses after waiting for the request to complete. The way the sink page is used is that an ITER BVEC-class iterator is created th...

SUSE SLES12 Security Update : kernel (Live Patch 78 for SUSE Linux Enterprise 12 SP5) (SUSE-SU-2026:3066-1)

The remote SUSE Linux SLES12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3066-1 advisory. This update for the SUSE Linux Enterprise Kernel 4.12.14-122.296 fixes various security issues The following security issues were fixed: -...

Important: Red Hat Security Advisory: OpenShift Container Platform 4.16.66 bug fix and security update

Red Hat OpenShift Container Platform release 4.16.66 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.16. Red Hat Product Security has rated this update as having a...

SUSE-SU-2026:3067-1 Security update for the Linux Kernel (Live Patch 83 for SUSE Linux Enterprise 12 SP5)

This update for the SUSE Linux Enterprise Kernel 4.12.14-122.310 fixes various security issues The following security issues were fixed: - CVE-2026-43037: ip6tunnel: clear skb2-cb in ip4ip6err bsc1265197. - CVE-2026-45970: bonding: alb: fix UAF in rlbarprecv during bond up/down bsc1267206. -...

Amazon Linux 2023 : cifs-utils, cifs-utils-devel, cifs-utils-info (ALAS2023-2026-1927)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1927 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number. %NASLMINLEVEL 80900 C Tenable, Inc. The descriptive text and package checks...

SUSE-SU-2026:3066-1 Security update for the Linux Kernel (Live Patch 78 for SUSE Linux Enterprise 12 SP5)

This update for the SUSE Linux Enterprise Kernel 4.12.14-122.296 fixes various security issues The following security issues were fixed: - CVE-2026-31685: netfilter: ip6teui64: reject invalid MAC header for all packets bsc1263670. - CVE-2026-43025: netfilter: ctnetlink: ignore explicit helper on...