PT-2026-128131

In the Linux kernel, the following vulnerability has been resolved: tcp: fix use-after-free in do tcp getsockoptTCP CC INFO do tcp getsockopt reads icsk-icsk ca ops and dereferences the get info function pointer without rcu read lock. With BPF struct ops congestion control, ca ops can point to...

PT-2026-117006

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix missing migration protection in rhtab map lookup and delete batch bpf mem cache free rcu uses this cpu ptr which requires migration to be disabled. All callers of rhtab delete elem disable migration except rhtab map look...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mctp: Route lookups now perform under a RCU read-side lock. Our current route lookups mctproutelookup and mctproutelookupnull traverse the network’s route list without holding the RCU read lock. This means that the route lookups...

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

In the Linux kernel, the following vulnerability has been resolved: cgroup/cpuset: Prevent UAF in proccpusetshow A UAF can occur when reading /proc/cpuset, as reported in 1. This issue can be reproduced using the following methods: 1. Add an mdelay1000 before acquiring the cgrouplock in the...

Astra Linux – vulnerability in linux-5.15, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent possible UAF in ip6xmit If skbexpandhead returns NULL, skb has been freed and the associated dst/idev could also have been freed. We must use rcureadlock to prevent a possible UAF...

CVE-2026-90143

A flaw was found in the Linux kernel's KCM Kernel Connection Multiplexer component. The kcmparsefuncstrparser function, which runs a BPF Berkeley Packet Filter parser, does not properly hold an RCU Read-Copy-Update read lock. This oversight can lead to BPF map operations triggering a warning,...

PT-2026-115766

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: move switchdev call outside rcu This is a follow-up of one of sashiko's pre-existing bug reports. br mst set state calls switchdev port attr set for nonzero MSTIs while holding rcu read lock which invokes the...

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

In the Linux kernel, the following vulnerability has been resolved: ipv6: fixed a possible Use-after-Allocation UAF in ip6finishoutput2. If skbexpandhead returns NULL, the skb is freed, and the associated dst/idev may also be freed. We need to hold the rcureadlock to ensure that the dst and...

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

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nfnetlinkqueue: acquire rcureadlock in instanceDestroyrcu syzbot reported that nfreinject could be called without rcureadlock: WARNING: suspicious RCU usage 6.9.0-rc7-syzkaller-02060-g5c1672705a1a 0 Not tainted...

SUSE CVE-2026-97971

In the Linux kernel, the following vulnerability has been resolved: nstree: check listing permission before taking a namespace reference legitimizens takes a reference on the candidate namespace before maylistns has decided whether the caller may see it. The freensput cleanup on the denied path c...

CVE-2026-97971

In the Linux kernel, the following vulnerability has been resolved: nstree: check listing permission before taking a namespace reference legitimizens takes a reference on the candidate namespace before maylistns has decided whether the caller may see it. The freensput cleanup on the denied path c...

UBUNTU-CVE-2026-97971

In the Linux kernel, the following vulnerability has been resolved: nstree: check listing permission before taking a namespace reference legitimizens takes a reference on the candidate namespace before maylistns has decided whether the caller may see it. The freensput cleanup on the denied path c...

CVE-2026-97971 nstree: check listing permission before taking a namespace reference

In the Linux kernel, the following vulnerability has been resolved: nstree: check listing permission before taking a namespace reference legitimizens takes a reference on the candidate namespace before maylistns has decided whether the caller may see it. The freensput cleanup on the denied path c...

CVE-2026-97971

The Linux kernel is vulnerable to a race condition where legitimize_ns() takes a reference on a candidate namespace before may_list_ns() determines if the caller has permission to see it. This can lead to the __free(ns_put) cleanup dropping the last reference to a mount namespace while holding an...

Linux Distros Unpatched Vulnerability : CVE-2026-97971

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nstree: check listing permission before taking a namespace reference legitimizens takes a reference on the candidate namespace before maylistns has decided...

CVE-2026-97971

In the Linux kernel, the following vulnerability has been resolved: nstree: check listing permission before taking a namespace reference legitimizens takes a reference on the candidate namespace before maylistns has decided whether the caller may see it. The freensput cleanup on the denied path c...

CVE-2026-97971: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nstree: check listing permission before taking a namespace reference legitimizens takes a reference on the candidate namespace before maylistns has decided whether the caller may see it. The freensput cleanup on the denied path c...

SUSE CVE-2026-90143

In the Linux kernel, the following vulnerability has been resolved: net: kcm: Hold RCU read lock while running BPF parser kcmparsefuncstrparser calls bpfprogrunpinoncpu which prevents CPU migration, but does not establish an RCU read-side critical section. Consequently, BPF map operations can...

DEBIAN-CVE-2026-90143

In the Linux kernel, the following vulnerability has been resolved: net: kcm: Hold RCU read lock while running BPF parser kcmparsefuncstrparser calls bpfprogrunpinoncpu which prevents CPU migration, but does not establish an RCU read-side critical section. Consequently, BPF map operations can...

CVE-2026-90143

In the Linux kernel, the following vulnerability has been resolved: net: kcm: Hold RCU read lock while running BPF parser kcmparsefuncstrparser calls bpfprogrunpinoncpu which prevents CPU migration, but does not establish an RCU read-side critical section. Consequently, BPF map operations can...