CVE-2026-42209

Summary: CVE-2026-42209 affects FlashMQ, a MQTT broker/server for multi-CPU environments. Before v1.26.1, a remote client with retained publish permission can trigger a crash of the FlashMQ broker when both set_retained_message_defer_timeout and set_retained_message_defer_timeout_spread are non-d...

EUVD-2026-28680

In the Linux kernel, the following vulnerability has been resolved: net: nexthop: fix percpu use-after-free in removenhgrpentry When removing a nexthop from a group, removenhgrpentry publishes the new group via rcuassignpointer then immediately frees the removed entry's percpu stats with...

CVE-2026-43376

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

CVE-2026-43374

In the Linux kernel, the following vulnerability has been resolved: net: nexthop: fix percpu use-after-free in removenhgrpentry When removing a nexthop from a group, removenhgrpentry publishes the new group via rcuassignpointer then immediately frees the removed entry's percpu stats with...

CVE-2026-43376

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

CVE-2026-43374

In the Linux kernel, the following vulnerability has been resolved: net: nexthop: fix percpu use-after-free in removenhgrpentry When removing a nexthop from a group, removenhgrpentry publishes the new group via rcuassignpointer then immediately frees the removed entry's percpu stats with...

CVE-2026-43376 ksmbd: fix use-after-free by using call_rcu() for oplock_info

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

CVE-2026-43376 ksmbd: fix use-after-free by using call_rcu() for oplock_info

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free by using callrcu for oplockinfo ksmbd currently frees oplockinfo immediately using kfree, even though it is accessed under RCU read-side critical sections in places like opinfoget and procshowfiles. Sinc...

CVE-2026-43376

CVE-2026-43376 affects ksmbd in the Linux kernel. The vulnerability arises from freeing oplock_info with kfree() while it can still be accessed under RCU read-side critical sections (e.g., opinfo_get), allowing a use-after-free. The fixes across connected reports switch to deferred freeing via ca...

CVE-2026-43374

In the Linux kernel, the following vulnerability has been resolved: net: nexthop: fix percpu use-after-free in removenhgrpentry When removing a nexthop from a group, removenhgrpentry publishes the new group via rcuassignpointer then immediately frees the removed entry's percpu stats with...

CVE-2026-43374

Summary: CVE-2026-43374 affects the Linux kernel networking code (net: nexthop). The vuln arises when removing a nexthop from a group: remove_nh_grp_entry() publishes the new group via rcu_assign_pointer() and then immediately frees the removed entry’s percpu stats with free_percpu(), while the s...

CVE-2026-43374 net: nexthop: fix percpu use-after-free in remove_nh_grp_entry

In the Linux kernel, the following vulnerability has been resolved: net: nexthop: fix percpu use-after-free in removenhgrpentry When removing a nexthop from a group, removenhgrpentry publishes the new group via rcuassignpointer then immediately frees the removed entry's percpu stats with...

PT-2026-39037

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the ksmbd module. The system frees the oplock info structure immediately using kfree, while it is still being accessed under RCU Read-Copy-Update read-si...

PT-2026-39035

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the Linux kernel within the remove nh grp entry function. The system publishes a new group using rcu assign pointer and immediately frees the removed...

SUSE CVE-2026-43074

In the Linux kernel, the following vulnerability has been resolved: eventpoll: defer struct eventpoll free to RCU grace period In certain situations, epfree in eventpoll.c will kfree the epi-ep eventpoll struct while it still being used by another concurrent thread. Defer the kfree to an RCU...

CVE-2026-43074

CVE-2026-43074 affects the Linux kernel eventpoll code. The vulnerability arises from ep_free() freeing the eventpoll structure while still in use by another thread, creating a use-after-free (UAF). The fix defers kfree() of the epi->ep struct to an RCU grace period to prevent UAF; multiple so...

CVE-2026-31733

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix stale direct dispatch state in ddspdsqid @p-scx.ddspdsqid can be left set non-SCXDSQINVALID triggering a spurious warning in markdirectdispatch when the next wakeup's ops.selectcpu calls scxbpfdsqinsert, such as:...

Linux Distros Unpatched Vulnerability : CVE-2026-31481

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: tracing: Drain deferred trigger frees if kthread creation fails Boot-time trigger registrati...

SUSE CVE-2026-31665

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: fix use-after-free in timeout object destroy nftcttimeoutobjdestroy frees the timeout object with kfree immediately after nfctuntimeout, without waiting for an RCU grace period. Concurrent packet processing on...

CVE-2026-31665

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: fix use-after-free in timeout object destroy nftcttimeoutobjdestroy frees the timeout object with kfree immediately after nfctuntimeout, without waiting for an RCU grace period. Concurrent packet processing on...