CVE-2026-23342 bpf: Fix race in cpumap on PREEMPT_RT

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

CVE-2026-23342

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

CVE-2026-23340 net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs

In the Linux kernel, the following vulnerability has been resolved: net: sched: avoid qdiscresetalltxgt vs dequeue race for lockless qdiscs When shrinking the number of real tx queues, netifsetrealnumtxqueues calls qdiscresetalltxgt to flush qdiscs for queues which will no longer be used...

CVE-2026-23311

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix invalid wait context in ctxschedin Lockdep found a bug in the event scheduling when a pinned event was failed and wakes up the threads in the ring buffer like below. It seems it should not grab a wait-queue lock...

CVE-2026-23311

CVE-2026-23311 is a Linux kernel issue in perf/core: Fix of an invalid wait context in ctx_sched_in(). Lockdep reports a bug where a pinned event wakeup could grab a wait-queue lock under perf-context lock; the fix switches to using irq_work and avoids grabbing the lock in the problematic context...

CVE-2026-23311 perf/core: Fix invalid wait context in ctx_sched_in()

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix invalid wait context in ctxschedin Lockdep found a bug in the event scheduling when a pinned event was failed and wakes up the threads in the ring buffer like below. It seems it should not grab a wait-queue lock...

CVE-2026-23306

In the Linux kernel, the following vulnerability has been resolved: scsi: pm8001: Fix use-after-free in pm8001queuecommand Commit e29c47fe8946 "scsi: pm8001: Simplify pm8001taskexec" refactors pm8001queuecommand, however it introduces a potential cause of a double free scenario when it changes th...

CVE-2026-23306 scsi: pm8001: Fix use-after-free in pm8001_queue_command()

In the Linux kernel, the following vulnerability has been resolved: scsi: pm8001: Fix use-after-free in pm8001queuecommand Commit e29c47fe8946 "scsi: pm8001: Simplify pm8001taskexec" refactors pm8001queuecommand, however it introduces a potential cause of a double free scenario when it changes th...

CVE-2026-23306

The CVE-2026-23306 issue affects Linux kernel SCSI pm8001 code. A refactor of pm8001_queue_command() to return -ENODEV in phy-down/device-gone states could inadvertently free the SAS task twice: pm8001_queue_command() would free the underlying SAS task, then libsas sas_ata_qc_issue() would attemp...

CVE-2026-23299

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: purge error queues in socket destructors When TX timestamping is enabled via SOTIMESTAMPING, SKBs may be queued into skerrorqueue and will stay there until consumed. If userspace never gets to read the timestamps, or i...

CVE-2026-23299 Bluetooth: purge error queues in socket destructors

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: purge error queues in socket destructors When TX timestamping is enabled via SOTIMESTAMPING, SKBs may be queued into skerrorqueue and will stay there until consumed. If userspace never gets to read the timestamps, or i...

CVE-2026-23299 Bluetooth: purge error queues in socket destructors

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: purge error queues in socket destructors When TX timestamping is enabled via SOTIMESTAMPING, SKBs may be queued into skerrorqueue and will stay there until consumed. If userspace never gets to read the timestamps, or i...

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...

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-2026-23289 IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq()

In the Linux kernel, the following vulnerability has been resolved: IB/mthca: Add missed mthcaunmapuserdb for mthcacreatesrq Fix a user triggerable leak on the system call failure path...

CVE-2026-23289

In the Linux kernel, the following vulnerability has been resolved: IB/mthca: Add missed mthcaunmapuserdb for mthcacreatesrq Fix a user triggerable leak on the system call failure path...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from acquiring the wait queue lock under a performance context lock, potentially leading to an invalid...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the failure to clear the error queue during the socket destruction function. This vulnerability m...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, caused by an incorrect configuration of the XDP RxQ fragsize field, which may lead to negative tail space...