CVE-2026-64335 PUBLISHED

USB: serial: digi_acceleport: fix broken rx after throttle

Assigner: Linux
Reserved: 19.07.2026 Published: 25.07.2026 Updated: 25.07.2026

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

USB: serial: digi_acceleport: fix broken rx after throttle

If the port is closed while throttled, the read urb is never resubmitted and the port will not receive any further data until the device is reconnected (or the driver is rebound).

Clear the throttle flags and submit the urb if needed when opening the port.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 4f3f6f44db71e469933a7c36c5d57d937ba0a21b (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to d5d2660caef78d4c996d34d123574c8e86f5b5ac (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 61954033326fc7e637ed2aeeb4b52021e0ee4657 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 8d50a910194f66566a5eb252b33283855c8d5203 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to abacd67e6f689c62d8a13e3da25f4272bc9ad4af (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to eab394781e9321c0c7e97a24fd092387cb262f40 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 92fa3e1a49848509ea3f7995751963fc65095998 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 83a3dfc018943b05b6daf3a6f891833e1aabfa1f (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 2.6.12 is affected
  • unaffected from 0 to 2.6.12 (excl.)
  • unaffected from 5.10.261 to 5.10.* (incl.)
  • unaffected from 5.15.212 to 5.15.* (incl.)
  • unaffected from 6.1.178 to 6.1.* (incl.)
  • unaffected from 6.6.145 to 6.6.* (incl.)
  • unaffected from 6.12.96 to 6.12.* (incl.)
  • unaffected from 6.18.39 to 6.18.* (incl.)
  • unaffected from 7.1.4 to 7.1.* (incl.)
  • unaffected from 7.2-rc3 to * (incl.)

References