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-2026-23347

In the Linux kernel, the following vulnerability has been resolved: can: usb: f81604: correctly anchor the urb in the read bulk callback When submitting an urb, that is using the anchor pattern, it needs to be anchored before submitting it otherwise it could be leaked if usbkillanchoredurbs is...

CVE-2026-23324

In the Linux kernel, the following vulnerability has been resolved: can: usb: etases58x: correctly anchor the urb in the read bulk callback When submitting an urb, that is using the anchor pattern, it needs to be anchored before submitting it otherwise it could be leaked if usbkillanchoredurbs is...

CVE-2026-23307

In the Linux kernel, the following vulnerability has been resolved: can: emsusb: emsusbreadbulkcallback: check the proper length of a message When looking at the data in a USB urb, the actuallength is the size of the buffer passed to the driver, not the transferbufferlength which is set by the...

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-2026-23298

In the Linux kernel, the following vulnerability has been resolved: can: ucan: Fix infinite loop from zero-length messages If a broken ucan device gets a message with the message length field set to 0, then the driver will loop for forever in ucanreadbulkcallback, hanging the system. If the lengt...

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-2026-23342

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-2026-23324

In the Linux kernel, the following vulnerability has been resolved: can: usb: etases58x: correctly anchor the urb in the read bulk callback When submitting an urb, that is using the anchor pattern, it needs to be anchored before submitting it otherwise it could be leaked if usbkillanchoredurbs is...

CVE-2026-23347

In the Linux kernel, the following vulnerability has been resolved: can: usb: f81604: correctly anchor the urb in the read bulk callback When submitting an urb, that is using the anchor pattern, it needs to be anchored before submitting it otherwise it could be leaked if usbkillanchoredurbs is...

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-2026-23347

In the Linux kernel, the following vulnerability has been resolved: can: usb: f81604: correctly anchor the urb in the read bulk callback When submitting an urb, that is using the anchor pattern, it needs to be anchored before submitting it otherwise it could be leaked if usbkillanchoredurbs is...

UBUNTU-CVE-2026-23324

In the Linux kernel, the following vulnerability has been resolved: can: usb: etases58x: correctly anchor the urb in the read bulk callback When submitting an urb, that is using the anchor pattern, it needs to be anchored before submitting it otherwise it could be leaked if usbkillanchoredurbs is...

UBUNTU-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-2026-23347

CVE-2026-23347 : Linux kernel vulnerability where the read bulk callback in the USB can driver (f81604) failed to anchor the urb before submitting in the anchor pattern. This could lead to urb leakage if usb_kill_anchored_urbs() is invoked. The issue is addressed by anchoring the urb in the read ...

CVE-2026-23347 can: usb: f81604: correctly anchor the urb in the read bulk callback

In the Linux kernel, the following vulnerability has been resolved: can: usb: f81604: correctly anchor the urb in the read bulk callback When submitting an urb, that is using the anchor pattern, it needs to be anchored before submitting it otherwise it could be leaked if usbkillanchoredurbs is...

CVE-2026-23347

In the Linux kernel, the following vulnerability has been resolved: can: usb: f81604: correctly anchor the urb in the read bulk callback When submitting an urb, that is using the anchor pattern, it needs to be anchored before submitting it otherwise it could be leaked if usbkillanchoredurbs is...

CVE-2026-23347

In the Linux kernel, the following vulnerability has been resolved: can: usb: f81604: correctly anchor the urb in the read bulk callback When submitting an urb, that is using the anchor pattern, it needs to be anchored before submitting it otherwise it could be leaked if usbkillanchoredurbs is...

CVE-2026-23347 can: usb: f81604: correctly anchor the urb in the read bulk callback

In the Linux kernel, the following vulnerability has been resolved: can: usb: f81604: correctly anchor the urb in the read bulk callback When submitting an urb, that is using the anchor pattern, it needs to be anchored before submitting it otherwise it could be leaked if usbkillanchoredurbs is...

CVE-2026-23342

CVE-2026-23342 describes a race in the Linux kernel’s PREEMPT_RT path for BPF cpumap/xdp_bulk_queue. The issue arises when bq_enqueue() and __cpu_map_flush() run concurrently on the same CPU, breaking assumptions about atomicity and enabling races such as double __list_del_clearprev() and concurr...