In the Linux kernel, the following vulnerability has been resolved: wifi: libertas: don't kill URBs in interrupt context Serialization for the TX path was enforced by calling usb_kill_urb()/usb_kill_anchored_urbs(), to prevent transmission before a previous URB was completed. usb_tx_block() can be called from interrupt context (e.g. in the HCD giveback path), so we can't always use it to kill in-flight URBs. Prevent sleeping during interrupt context by checking the tx_submitted anchor for existing URBs. We now return -EBUSY, to indicate there's a pending request.

A flaw was found in the Linux kernel's Wi-Fi Libertas driver. This issue occurs when the system attempts to terminate USB Request Blocks (URBs) from an interrupt context, which can lead to the system attempting to sleep in an inappropriate context. This can cause system instability or prevent further transmission, potentially leading to a denial of service.

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-53107 https://nvd.nist.gov/vuln/detail/CVE-2026-53107 https://lore.kernel.org/linux-cve-announce/2026062413-CVE-2026-53107-636d@gregkh/T