CVE-2026-31758 PUBLISHED

usb: usbtmc: Flush anchored URBs in usbtmc_release

Assigner: Linux
Reserved: 09.03.2026 Published: 01.05.2026 Updated: 01.05.2026

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

usb: usbtmc: Flush anchored URBs in usbtmc_release

When calling usbtmc_release, pending anchored URBs must be flushed or killed to prevent use-after-free errors (e.g. in the HCD giveback path). Call usbtmc_draw_down() to allow anchored URBs to be completed.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 4f3c8d6eddc272b386464524235440a418ed2029 to 959ef329071136e4335b54822fe2f607659b4569 (excl.)
  • affected from 4f3c8d6eddc272b386464524235440a418ed2029 to e189d443767f7cd390c52f2e122e1fc41c7562d6 (excl.)
  • affected from 4f3c8d6eddc272b386464524235440a418ed2029 to 7fa8f61bab3fb75b5deba8a0f3abb74dc5068d9f (excl.)
  • affected from 4f3c8d6eddc272b386464524235440a418ed2029 to 95e09b07e50290254b28b8395509473104518f8c (excl.)
  • affected from 4f3c8d6eddc272b386464524235440a418ed2029 to d13318dec0c1e0e2ac16f8ecbd522db14cea4bb1 (excl.)
  • affected from 4f3c8d6eddc272b386464524235440a418ed2029 to 977b632db51d231dec0bc571089a5c2402674139 (excl.)
  • affected from 4f3c8d6eddc272b386464524235440a418ed2029 to d40198de50232e04c14c6e2092e896766c95ea48 (excl.)
  • affected from 4f3c8d6eddc272b386464524235440a418ed2029 to 8a768552f7a8276fb9e01d49773d2094ace7c8f1 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 4.19 is affected
  • unaffected from 0 to 4.19 (excl.)
  • unaffected from 5.10.253 to 5.10.* (incl.)
  • unaffected from 5.15.203 to 5.15.* (incl.)
  • unaffected from 6.1.168 to 6.1.* (incl.)
  • unaffected from 6.6.134 to 6.6.* (incl.)
  • unaffected from 6.12.81 to 6.12.* (incl.)
  • unaffected from 6.18.22 to 6.18.* (incl.)
  • unaffected from 6.19.12 to 6.19.* (incl.)
  • unaffected from 7.0 to * (incl.)

References