Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: usbnet: Fixed the issue involving the use of smpprocessorid in preemptible code. Syzbot reported the following warning: BUG: Using smpprocessorid in preemptible 00000000 code: dhcpcd/2879. Caller: usbnetskbreturn+0x74/0x490,...

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: bpf: Send signals asynchronously if !preemptible BPF programs can execute in various contexts. When a program running in a non-preemptible context uses the bpfsendsignal function, issues may arise because this function can enter ...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: tcp: tcprtxsynack can be called from process context Laurent reported the enclosed report 1 This bug triggers under the following conditions: 0 The kernel is built with CONFIGDEBUGPREEMPT=y 1 A new passive FastOpen TCP socket is...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: scsi: lpfc: Fixed the call trace observed during I/O operations with CMF enabled. The following issue was observed with CMF enabled: BUG: Use of smpprocessorid in preemptible code: kernel: Caller is lpfcupdatecmfcmd+0x214/0x42...

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

In the Linux kernel, the following vulnerabilities have been resolved: scsi: qedf: Make qedfexecutetmf non-preemptible Stop calling smpprocessorid from preemptible code in qedfexecutetmf90. This results in BUGON when running an RT kernel. 659.343280 BUG: Using smpprocessorid in preemptible 000000...

CVE-2026-89580

A flaw was found in the Linux kernel's BPF Berkeley Packet Filter subsystem. A local attacker could exploit a timing issue in the bpfgetstack function. This occurs when a preemptible BPF program is scheduled out, allowing another task to overwrite a per-CPU buffer. This leads to an out-of-bounds...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Use rawsmpprocessorid instead of smpprocessorid. The following call trace was observed: localhost kernel: nvme nvme0: NVME-FC0: controller connect complete localhost kernel: BUG: Using smpprocessorid in preemptible...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: RCU: Fixed the lockdep warning in thiscpuread in rcuforcequiescentstate. Running rcutorture with a non-zero fqsduration module parameter in a kernel built with CONFIGPREEMPTION=y results in the following error: BUG: Using...

CVE-2026-64428

A flaw was found in the Linux kernel's GPIO General Purpose Input/Output SCH controller. When the PREEMPTRT Preemptible Real-Time feature is enabled, a locking mechanism intended for sleeping contexts is incorrectly used within a non-sleepable interrupt setup path. This can lead to a system crash...

sched/rt: Have RT_PUSH_IPI be default off for non PREEMPT_RT

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kernel: net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels

A flaw was found in the Linux kernel's IPv6 networking implementation, specifically within the seg6 and rpl lwtunnels. A race condition can occur when handling destination cache entries, where a NOREF no reference destination object is used after it has been freed. This use-after-free vulnerabili...

K000161954: Linux kernel vulnerability CVE-2026-23351

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsetpipapo: split gc into unlink and reclaim phase Yiming Qian reports Use-after-free in the pipapo set type: Under a large number of expired elements, commit-time GC can run for a very...

UBUNTU-CVE-2026-52936

In the Linux kernel, the following vulnerability has been resolved: crypto: jitterentropy - replace long-held spinlock with mutex jentkcapirandom serializes the shared jitterentropy state, but it currently holds a spinlock across the jentreadentropy call. That path performs expensive jitter...

SUSE CVE-2026-46031

In the Linux kernel, the following vulnerability has been resolved: net: ks8851: Reinstate disabling of BHs around IRQ handler If the driver executes ks8851irq AND a TX packet has been sent, then the driver enables TX queue via netifwakequeue which schedules TX softirq to queue packets for this...

CVE-2026-46099

A flaw was found in the Linux kernel's IPv6 networking implementation, specifically within the seg6 and rpl lwtunnels. A race condition can occur when handling destination cache entries, where a NOREF no reference destination object is used after it has been freed. This use-after-free vulnerabili...

UBUNTU-CVE-2026-46099

In the Linux kernel, the following vulnerability has been resolved: net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels seg6inputcore and rplinput call ip6routeinput which sets a NOREF dst on the skb, then pass it to dstcachesetip6 invoking dsthold unconditionally. On PREEMPTRT, ksoftirqd is...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: slab: fixed the context check for kmallocnolock in the PREEMPTRT kernel mode. In PREEMPTRT kernels, locallock acts as a sleeping lock. The current check in kmallocnolock only verifies that the context does not match NMI or hard I...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021573)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021573 advisory. In the Linux kernel, the following vulnerability has been resolved: scsi: qedf: Make qedfexecutetmf non-preemptible Stop calling smpprocessorid from preemptible code...

CVE-2026-43311

CVE-2026-43311 resolves a Linux kernel Tegra PMC issue where generic_handle_irq() was called from a non-interrupt context during system suspend resume, causing kernel warnings. The fix defers the call to an IRQ work, enabling safe execution in hard IRQ context. For PREEMPT_RT kernels, the patch u...

CVE-2026-31734 sched_ext: Fix is_bpf_migration_disabled() false negative on non-PREEMPT_RCU

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix isbpfmigrationdisabled false negative on non-PREEMPTRCU Since commit 8e4f0b1ebcf2 "bpf: use rcureadlockdontmigrate for trampoline.c", the BPF prolog bpfprogenter calls migratedisable only when CONFIGPREEMPTRCU is...