DEBIAN-CVE-2026-64211

In the Linux kernel, the following vulnerability has been resolved: srcu: Don't queue workqueue handlers to never-online CPUs While an srcustruct structure is in the midst of switching from CPU-0 to all-CPUs state, it can attempt to invoke callbacks for CPUs that have never been online. Worse yet...

CVE-2026-64211

In the Linux kernel, the following vulnerability has been resolved: srcu: Don't queue workqueue handlers to never-online CPUs While an srcustruct structure is in the midst of switching from CPU-0 to all-CPUs state, it can attempt to invoke callbacks for CPUs that have never been online. Worse yet...

EUVD-2026-48619

In the Linux kernel, the following vulnerability has been resolved: srcu: Don't queue workqueue handlers to never-online CPUs While an srcustruct structure is in the midst of switching from CPU-0 to all-CPUs state, it can attempt to invoke callbacks for CPUs that have never been online. Worse yet...

CVE-2026-64211

CVE-2026-64211 affects the Linux kernel SRCU: during CPU state transitions, tree SRCU could queue workqueue callbacks to CPUs that are not online or will never be online (including imaginary CPUs). The issue could cause hangs on s390 due to scheduling workqueue handlers on such CPUs. The referenc...

CVE-2026-64211 srcu: Don't queue workqueue handlers to never-online CPUs

In the Linux kernel, the following vulnerability has been resolved: srcu: Don't queue workqueue handlers to never-online CPUs While an srcustruct structure is in the midst of switching from CPU-0 to all-CPUs state, it can attempt to invoke callbacks for CPUs that have never been online. Worse yet...

PT-2026-64326

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Sleepable Read-Copy Update SRCU mechanism where an srcu struct structure, while transitioning from CPU-0 to all-CPUs state, may attempt to invoke callbacks on CPUs...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ixgbe: Fixed NULL pointer dereferencing in ixgbexdpsetup The ixgbe driver currently causes a NULL pointer dereferencing with some machines online cpus ringfeatureRINGFFDIR.limit = count; This results in numqueues being set to 63...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: RDMA/irdma: The Cap MSIX used to online CPUs + 1 The irdma driver can use a maximum number of msix vectors equal to numonlinecpus + 1. If this number is exceeded, the kernel will issue a warning. The kernel issues a warning wh...

EUVD-2026-27669

In the Linux kernel, the following vulnerability has been resolved: mailbox: mchp-ipc-sbi: fix out-of-bounds access in mchpipcgetclusteraggrirq The clustercfg array is dynamically allocated to hold per-CPU configuration structures, with its size based on the number of online CPUs. Previously, thi...

CVE-2026-43274 mailbox: mchp-ipc-sbi: fix out-of-bounds access in mchp_ipc_get_cluster_aggr_irq()

In the Linux kernel, the following vulnerability has been resolved: mailbox: mchp-ipc-sbi: fix out-of-bounds access in mchpipcgetclusteraggrirq The clustercfg array is dynamically allocated to hold per-CPU configuration structures, with its size based on the number of online CPUs. Previously, thi...

EUVD-2026-15292

In the Linux kernel, the following vulnerability has been resolved: cpufreq: intelpstate: Fix crash during turbo disable When the system is booted with kernel command line argument "nosmt" or "maxcpus" to limit the number of CPUs, disabling turbo via: echo 1...

CVE-2026-23332

In the Linux kernel, the following vulnerability has been resolved: cpufreq: intelpstate: Fix crash during turbo disable When the system is booted with kernel command line argument "nosmt" or "maxcpus" to limit the number of CPUs, disabling turbo via: echo 1...

SUSE CVE-2023-53811

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Cap MSIX used to online CPUs + 1 The irdma driver can use a maximum number of msix vectors equal to numonlinecpus + 1 and the kernel warning stack below is shown if that number is exceeded. The kernel throws a warning...

CVE-2023-53811

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Cap MSIX used to online CPUs + 1 The irdma driver can use a maximum number of msix vectors equal to numonlinecpus + 1 and the kernel warning stack below is shown if that number is exceeded. The kernel throws a warning...

CVE-2023-53811

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Cap MSIX used to online CPUs + 1 The irdma driver can use a maximum number of msix vectors equal to numonlinecpus + 1 and the kernel warning stack below is shown if that number is exceeded. The kernel throws a warning...

CVE-2023-53811

The CVE-2023-53811 issue affects the Linux kernel’s irdma RDMA driver: the driver could allocate MSIX vectors up to num_online_cpus() + 1, and when this limit is exceeded the kernel would warn while updating CPU affinity with a mask larger than available CPUs. The fix caps MSIX vectors to num_onl...

SUSE CVE-2022-50177

In the Linux kernel, the following vulnerability has been resolved: rcutorture: Fix ksoftirqd boosting timing and iteration The RCU priority boosting can fail in two situations: 1 If nrcpus= maxcpus=, which means if the total number of CPUs is higher than those brought online at boot, then...

SUSE CVE-2022-49889

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Check for NULL cpubuffer in ringbufferwakewaiters On some machines the number of listed CPUs may be bigger than the actual CPUs that exist. The tracing subsystem allocates a percpu directory with access to the per CP...

UBUNTU-CVE-2022-49889

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Check for NULL cpubuffer in ringbufferwakewaiters On some machines the number of listed CPUs may be bigger than the actual CPUs that exist. The tracing subsystem allocates a percpu directory with access to the per CP...

SUSE CVE-2024-46681

In the Linux kernel, the following vulnerability has been resolved: pktgen: use cpusreadlock in pgnetinit I have seen the WARNONsmpprocessorid != cpu firing in pktgenthreadworker during tests. We must use cpusreadlock/cpusreadunlock around the foreachonlinecpucpu loop. While we are at it use...