PT-2026-64555 · Linux · Linux

CVE-2026-64334 · Published 2026-07-25 · Updated 2026-07-25

NVD

In the Linux kernel, the following vulnerability has been resolved:

USB: serial: digi acceleport: fix hard lockup on disconnect

If submitting the OOB write urb fails persistently (e.g if the device is being disconnected) the driver would loop indefinitely with interrupts disabled.

Check for urb submission errors when sending OOB commands to avoid hanging if, for example, open(), set termios() or close() races with a physical disconnect.

This is issue was flagged by Sashiko when reviewing an unrelated change to the driver.

Related Identifiers

CVE-2026-64334

Affected Products

Linux

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-64334 · Security Note
• https://git.kernel.org/stable/c/5a82d842e8c35227d7227f19e5e654df1451782c · Note
• https://git.kernel.org/stable/c/6e51147c2744d15730084dc89cc99180d3de4184 · Note
• https://git.kernel.org/stable/c/bcfeae431db9986c2b313e6a760f2ac8df61e138 · Note
• https://git.kernel.org/stable/c/2b7dc482f859f2d027db07ff0efc1c5df5b3451a · Note
• https://git.kernel.org/stable/c/5c1ea24b53bf3bfb859f0a05573997487975da23 · Note
• https://git.kernel.org/stable/c/79bc131df0e50f8f663c1fdbbe952aaf193a8d39 · Note
• https://git.kernel.org/stable/c/6a8592ace932081ea11aea41c460a1ca0f6344a4 · Note
• https://git.kernel.org/stable/c/2067b3838da6e4af03bae3630414193188d754b2 · Note