CVE-2026-23294

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix race in devmap on PREEMPTRT On PREEMPTRT kernels, the per-CPU xdpdevbulkqueue bq can be accessed concurrently by multiple preemptible tasks on the same CPU. The original code assumes bqenqueue and devflush run atomically...

UBUNTU-CVE-2026-23294

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix race in devmap on PREEMPTRT On PREEMPTRT kernels, the per-CPU xdpdevbulkqueue bq can be accessed concurrently by multiple preemptible tasks on the same CPU. The original code assumes bqenqueue and devflush run atomically...

CVE-2026-23294

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix race in devmap on PREEMPTRT On PREEMPTRT kernels, the per-CPU xdpdevbulkqueue bq can be accessed concurrently by multiple preemptible tasks on the same CPU. The original code assumes bqenqueue and devflush run atomically...

CVE-2026-23359

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stack-out-of-bounds write in devmap getupperifindexes iterates over all upper devices and writes their indices into an array without checking bounds. Also the callers assume that the max number of upper devices is...

CVE-2026-23359

CVE-2026-23359 stems from a Linux kernel bug in BPF devmap handling. get_upper_ifindexes() could write upper-device indices beyond the allocated stack, because the code assumed MAX_NEST_DEV (8) bounds, but the number of upper devices (e.g., many macvlan) could exceed that. The result is a stack-o...

CVE-2026-23359 bpf: Fix stack-out-of-bounds write in devmap

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stack-out-of-bounds write in devmap getupperifindexes iterates over all upper devices and writes their indices into an array without checking bounds. Also the callers assume that the max number of upper devices is...

CVE-2026-23359

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stack-out-of-bounds write in devmap getupperifindexes iterates over all upper devices and writes their indices into an array without checking bounds. Also the callers assume that the max number of upper devices is...

CVE-2026-23359 bpf: Fix stack-out-of-bounds write in devmap

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stack-out-of-bounds write in devmap getupperifindexes iterates over all upper devices and writes their indices into an array without checking bounds. Also the callers assume that the max number of upper devices is...

CVE-2026-23359

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stack-out-of-bounds write in devmap getupperifindexes iterates over all upper devices and writes their indices into an array without checking bounds. Also the callers assume that the max number of upper devices is...

CVE-2026-23294 bpf: Fix race in devmap on PREEMPT_RT

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix race in devmap on PREEMPTRT On PREEMPTRT kernels, the per-CPU xdpdevbulkqueue bq can be accessed concurrently by multiple preemptible tasks on the same CPU. The original code assumes bqenqueue and devflush run atomically...

CVE-2026-23294

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix race in devmap on PREEMPTRT On PREEMPTRT kernels, the per-CPU xdpdevbulkqueue bq can be accessed concurrently by multiple preemptible tasks on the same CPU. The original code assumes bqenqueue and devflush run atomically...

CVE-2026-23294

The CVE describes a race in the Linux kernel’s PREEMPT_RT path for the per-CPU xdp_dev_bulk_queue (bq). The vulnerability arises because bq_enqueue() and __dev_flush() were believed to run atomically on the same CPU, but PREEMPT_RT can preempt, leading to concurrent access to bq->count and bq-...

CVE-2026-23294 bpf: Fix race in devmap on PREEMPT_RT

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix race in devmap on PREEMPTRT On PREEMPTRT kernels, the per-CPU xdpdevbulkqueue bq can be accessed concurrently by multiple preemptible tasks on the same CPU. The original code assumes bqenqueue and devflush run atomically...

Linux Distros Unpatched Vulnerability : CVE-2026-23359

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Fix stack-out-of-bounds write in devmap getupperifindexes iterates over all upper devices and writes their indices into an array without checking bounds...

NewStart CGSL MAIN 6.06 (SP) : blktrace Vulnerability (NS-SA-2026-0021)

The remote NewStart CGSL host, running version MAIN 6.06 SP, has blktrace packages installed that are affected by a vulnerability: - blktrace aka Block IO Tracing 1.2.0, as used with the Linux kernel and Android, has a buffer overflow in the devmapread function in btt/devmap.c because the device...

K000159060: Linux kernel vulnerability CVE-2024-56615

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: bpf: fix OOB devmap writes when deleting elements Jordy reported issue against XSKMAP which also applies to DEVMAP - the index used for accessing map entry, due to being a signed integer, causes the...

ROS-20260112-7368

A vulnerability in the dasdcopypairstore function of the drivers/s390/block/dasddevmap.c module of the Linux kernel is related to pointer dereferencing. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989000)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989000 advisory. In the Linux kernel, the following vulnerability has been resolved: mm/gup: fix guppudrange for dax For dax pud, pudhuge returns true on x86. So the function works a...

Siemens SIMATIC Devices Improper Restriction of Operations within the Bounds of a Memory Buffer (CVE-2024-26885)

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix DEVMAPHASH overflow check on 32-bit arches The devmap code allocates a number hash buckets equal to the next power of two of the maxentries value provided when creating the map. When rounding up to the next power of two,...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-392269)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-392269 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf: fix OOB devmap writes when deleting elements Jordy reported issue against XSKMAP which also...