CVE-2026-72436 netfilter: ipset: Don't use test_bit() in lockless RCU readers in hash types

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Don't use testbit in lockless RCU readers in hash types Sashiko pointed out that there are a few lockless RCU readers using testbit which is a relaxed atomic operation and provides no memory barrier guarantees...

CVE-2026-72436

The CVE-2026-72436 affects the Linux kernel netfilter ipset code. It arises from using test_bit() in lockless RCU readers within hash types, which is a relaxed atomic lacking memory barriers. The fix replaces test_bit() with test_bit_acquire() in code paths that may run parallel with add/del/gc, ...

CVE-2026-72436 netfilter: ipset: Don't use test_bit() in lockless RCU readers in hash types

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Don't use testbit in lockless RCU readers in hash types Sashiko pointed out that there are a few lockless RCU readers using testbit which is a relaxed atomic operation and provides no memory barrier guarantees...

CVE-2026-72122

CVE-2026-72122 (Linux kernel) fixes a race in the CAN BCM path. The issue arises when bcm_sendmsg() reads bo->ifindex and bo->bound without holding the socket lock, while bcm_notify(), bcm_connect() and bcm_release() update both fields under the same lock. The unsynchronized reads and write...

EUVD-2026-58880

In the Linux kernel, the following vulnerability has been resolved: can: bcm: fix lockless bound/ifindex race and silent RXSETUP failure bcmsendmsg reads bo-ifindex and checks bo-bound before taking locksock, while bcmnotify, bcmconnect and bcmrelease all mutate both fields under that same lock...

CVE-2026-72122 can: bcm: fix lockless bound/ifindex race and silent RX_SETUP failure

In the Linux kernel, the following vulnerability has been resolved: can: bcm: fix lockless bound/ifindex race and silent RXSETUP failure bcmsendmsg reads bo-ifindex and checks bo-bound before taking locksock, while bcmnotify, bcmconnect and bcmrelease all mutate both fields under that same lock...

CVE-2026-74330: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: configfs: fix lockless traversals of -schildren Having the parent directory locked protects entries from removal by another thread, but it does not protect cursors from being moved around by lseek - or freed, for that matter...

PT-2026-72766

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the configfs component where lockless traversals of -s children occur. While locking the parent directory prevents entries from being removed by another thread, it fai...

PT-2026-72311

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the CAN BCM module. The bcm sendmsg function reads the bo-ifindex variable and checks the bo-bound variable before acquiring the lock sock lock. Simultaneously...

SUSE CVE-2026-68296

In the Linux kernel, the following vulnerability has been resolved: net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM Before commit 00d066a4d4ed "netdevfeatures: convert NETIFFLLTX to dev-lltx", NETIFFLLTX was set unconditionally in both gretunnelinit and ip6gretnlinitfeatures alongside...

CVE-2026-68296

A flaw was found in the Linux kernel's Generic Routing Encapsulation GRE tunnel implementation. An issue with how lockless transmission was handled for GRE tunnels with Sequence Number SEQ or Checksum CSUM features could lead to a deadlock. This deadlock occurs when the GRE transmit function...

Linux Distros Unpatched Vulnerability : CVE-2026-68296

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM Before commit 00d066a4d4ed...

CVE-2026-68296

In the Linux kernel, the following vulnerability has been resolved: net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM Before commit 00d066a4d4ed "netdevfeatures: convert NETIFFLLTX to dev-lltx", NETIFFLLTX was set unconditionally in both gretunnelinit and ip6gretnlinitfeatures alongside...

UBUNTU-CVE-2026-68296

In the Linux kernel, the following vulnerability has been resolved: net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM Before commit 00d066a4d4ed "netdevfeatures: convert NETIFFLLTX to dev-lltx", NETIFFLLTX was set unconditionally in both gretunnelinit and ip6gretnlinitfeatures alongside...

CVE-2026-68296 net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM

In the Linux kernel, the following vulnerability has been resolved: net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM Before commit 00d066a4d4ed "netdevfeatures: convert NETIFFLLTX to dev-lltx", NETIFFLLTX was set unconditionally in both gretunnelinit and ip6gretnlinitfeatures alongside...

CVE-2026-68296 net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM

In the Linux kernel, the following vulnerability has been resolved: net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM Before commit 00d066a4d4ed "netdevfeatures: convert NETIFFLLTX to dev-lltx", NETIFFLLTX was set unconditionally in both gretunnelinit and ip6gretnlinitfeatures alongside...

CVE-2026-68296

CVE-2026-68296 refers to a Linux kernel issue where GRE/GRETAP/ip6gre tunnels with SEQ/CSUM could lose lockless TX due to a regression in NETIF_F_LLTX handling. The root cause was that after the 00d066a4d4ed commit, dev->lltx was assigned after the early returns, breaking the unconditional TX ...

CVE-2026-64514

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: gate mustwait writability check on ptepresent userfaultfdmustwait and userfaultfdhugemustwait read the PTE without taking the page table lock and then apply ptewrite / hugeptewrite to it. Those accessors decode bits...

AZL-93608 CVE-2026-64514 affecting package kernel for versions less than 6.6.145.2-1

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: gate mustwait writability check on ptepresent userfaultfdmustwait and userfaultfdhugemustwait read the PTE without taking the page table lock and then apply ptewrite / hugeptewrite to it. Those accessors decode bits...

CVE-2026-64435

In the Linux kernel, the following vulnerability has been resolved: audit: Fix data races of skbqueuelen readers on auditqueue Multiple readers access auditqueue.qlen via skbqueuelen without holding the queue lock or using READONCE, while kauditd writes to this field via the skbdequeue → skbunlin...