CVE-2026-93154 PUBLISHED

RDMA/irdma: Add refcounting to user ring MRs

Assigner: Linux
Reserved: 17.09.2026 Published: 17.09.2026 Updated: 17.09.2026

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

RDMA/irdma: Add refcounting to user ring MRs

Prevent userspace from deregistering the MRs that back QP/CQ/SRQ rings by bumping the MR's refcount upon association.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from b48c24c2d710cf34810c555dcef883a3d35a9c08 to 07974c267f603a76aead348bca97deee95efdcc9 (excl.)
  • affected from b48c24c2d710cf34810c555dcef883a3d35a9c08 to a6c0e693a7c881bfa43ac74cbcad1f8e10f1382b (excl.)
  • affected from b48c24c2d710cf34810c555dcef883a3d35a9c08 to f67d8a08f60c9217df6d40da56422d2049f5e334 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 5.14 is affected
  • unaffected from 0 to 5.14 (excl.)
  • unaffected from 6.18.52 to 6.18.* (incl.)
  • unaffected from 7.2.6 to 7.2.* (incl.)
  • unaffected from 7.3-rc1 to * (incl.)

References