Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ping: Fixed a potential NULL dereference for /proc/net/icmp. After committing the change dbca1596bbb0 “ping: Converted to RCU lookups, removed rwlock”, we use RCU for ping sockets. However, we should still use a spinlock for...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: fs/eventpoll: Fixed an infinite busy loop after the timeout has expired. After the commit 0a65bc27bd64 “eventpoll: Sets the epoll timeout if it’s in the future”, the following program would immediately enter a busy loop in the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Wifi: wilc1000 – Fixed RCU usage in the connect path. With lockdep enabled, calls to the connect function from the cfg802.11 layer lead to the following warning: ============================= WARNING: Suspicious RCU usage...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: shaper: Protection is added for late read accesses to the hierarchy. We retrieve a netdev during the preparation of Netlink operations pre-callbacks, and then we acquire a reference to it. Later, within the body of the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: NFSD: Deferred sub-object cleanup in export put callbacks The svcexportput function calls pathput and authdomainput immediately when the last reference is dropped, before the RCU grace period. RCU readers in eshow and cshow...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: It is now possible to use hdev-workqueue when scheduling hdev-cmd,ncmdtimer. The syzbot is reporting an attempt to schedule the hdev-cmdwork task from systemwq to hdev-workqueue WQ, which is currently in a draining...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: pfcp: The device is destroyed along with the udp socket’s netns structure. The pfcpnewlink function links the device to a specific netns in devnet instead of net, where an udp tunnel socket is created. Even when net is removed, t...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Support deferring bpflink deallocation to after RCU grace period For some program types, the “bpflink” is passed as a “context” that can be used by those BPF programs to retrieve additional information. For example, for...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: RCU: Protect access to rcuprinttaskexpstall - exptasks For kernels built with CONFIGPREEMPTRCU=y, the following scenario can result in a NULL pointer dereferencing: c CPU1 CPU2 rcupreemptdeferredqsirqrestore rcuprinttaskexpstall ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: NFS/localio: Fixed a race condition in nfslocalopenfh. Once the clp-cluuid.lock is dropped, another CPU may come in and free the struct nfsdfile that was just added. To prevent this from happening, take the RCU read lock before...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021625)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021625 advisory. In the Linux kernel, the following vulnerability has been resolved: ipv4: iptunnel: Fix suspicious RCU usage warning in iptunnelfind The per-netns IP tunnel hash tab...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021624)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021624 advisory. In the Linux kernel, the following vulnerability has been resolved: net: restrict SOREUSEPORT to inet sockets After blamed commit, crypto sockets could accidentally ...

kernel: bpf: Check rcu_read_lock_trace_held() in bpf_map_lookup_percpu_elem()

In the Linux kernel, the following vulnerability has been resolved: bpf: Check rcureadlocktraceheld in bpfmaplookuppercpuelem bpfmaplookuppercpuelem helper is also available for sleepable bpf program. When BPF JIT is disabled or under 32-bit host, bpfmaplookuppercpuelem will not be inlined. Using...

OESA-2026-2311 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Return the correct value in vmwtranslateptr functions Before the referenced fixes these functions used a lookup function that returned a pointer. Thi...

CLSA-2026-1778769697 kernel: Fix of 31 CVEs

net: skbuff: propagate shared-frag marker through pskbcopy - HID: ignore non-functional sensor in HP 5MP Camera CVE-2025-21992 - net: fix crash when config small gsomaxsize/gsoipv4maxsize CVE-2024-50258 - ipv4: iptunnel: Fix suspicious RCU usage warning in iptunnelinitflow CVE-2024-53042 - ALSA:...

SUSE CVE-2026-43379

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smblazyparentleasebreakclose opinfo pointer obtained via rcudereferencefp-fopinfo is being accessed after rcureadunlock has been called. This creates a race condition where the memory could be freed b...

SUSE CVE-2026-43402

In the Linux kernel, the following vulnerability has been resolved: kthread: consolidate kthread exit paths to prevent use-after-free Guillaume reported crashes via corrupted RCU callback function pointers during KUnit testing. The crash was traced back to the pidfs rhashtable conversion which...

CVE-2026-43385

A flaw was found in the Linux kernel where a race condition in the rcutasks grace period handling within the napithreadedpollloop function can lead to a stall. This issue occurs when threaded busypoll is enabled and specific network operations are performed. A local user or a specific workload...

CVE-2026-43376

A flaw was found in ksmbd in the Linux kernel. The oplockinfo structure is immediately freed using kfree without an RCU Read-Copy-Update grace period, even though it can still be accessed by readers. This improper memory deallocation can lead to a use-after-free vulnerability, particularly in the...

EUVD-2026-28682

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...