CVE-2026-31441 PUBLISHED

dmaengine: idxd: Fix memory leak when a wq is reset

Assigner: Linux
Reserved: 09.03.2026 Published: 22.04.2026 Updated: 22.04.2026

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

dmaengine: idxd: Fix memory leak when a wq is reset

idxd_wq_disable_cleanup() which is called from the reset path for a workqueue, sets the wq type to NONE, which for other parts of the driver mean that the wq is empty (all its resources were released).

Only set the wq type to NONE after its resources are released.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from da32b28c95a79e399e18c03f8178f41aec9c66e4 to a16098a2f0c11ee5e04e23aa7478ca1fcfb0f658 (excl.)
  • affected from da32b28c95a79e399e18c03f8178f41aec9c66e4 to 54d77cc0c40ca2f894859dc7b3c52997574f1a2a (excl.)
  • affected from da32b28c95a79e399e18c03f8178f41aec9c66e4 to 39c1504e0e76bcfb93991fd94288a83e05d13b51 (excl.)
  • affected from da32b28c95a79e399e18c03f8178f41aec9c66e4 to a9e7815d38629bcf59d3005001f1f315424a58de (excl.)
  • affected from da32b28c95a79e399e18c03f8178f41aec9c66e4 to 0c3d3ac57e3c52b570b8c695903306bff07e04c8 (excl.)
  • affected from da32b28c95a79e399e18c03f8178f41aec9c66e4 to d9cfb5193a047a92a4d3c0e91ea4cc87c8f7c478 (excl.)
  • Version 2a2df2bd10de44c3804661ed15157817c12d6291 is affected
Vendor Linux
Product Linux
Versions Default: affected
  • Version 5.8 is affected
  • unaffected from 0 to 5.8 (excl.)
  • unaffected from 6.1.168 to 6.1.* (incl.)
  • unaffected from 6.6.131 to 6.6.* (incl.)
  • unaffected from 6.12.80 to 6.12.* (incl.)
  • unaffected from 6.18.21 to 6.18.* (incl.)
  • unaffected from 6.19.11 to 6.19.* (incl.)
  • unaffected from 7.0 to * (incl.)

References