PT-2026-52001 · Linux · Linux

Published 2026-06-24 · Updated 2026-06-24 · CVE-2026-53107

Mitre

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.

Related Identifiers

CVE-2026-53107

Affected Products

Linux

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-53107 · Security Note
• https://git.kernel.org/stable/c/7c5c2b661bdb78c1472b8833265c9ed1ee880039 · Note
• https://git.kernel.org/stable/c/00c0317cebf44151df18fb647781f315268cdd98 · Note
• https://git.kernel.org/stable/c/4f273d3f98ebc60c30bbfb3ed4a7f0477d3eaed2 · Note