CVE-2026-92523 PUBLISHED

RDMA/nldev: validate dynamic counter attribute length

Assigner: Linux
Reserved: 16.09.2026 Published: 17.09.2026 Updated: 17.09.2026

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

RDMA/nldev: validate dynamic counter attribute length

RDMA_NLDEV_ATTR_STAT_HWCOUNTERS is a nested attribute whose children are consumed directly with nla_get_u32(). The top-level policy validates only the container, so it does not establish the fixed shape of each child.

Require every child payload to be exactly one u32 before reading it.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 3c3c1f1416392382faa0238e76a70d7810aab2ef to 7828d68ae8cad3463e38def5c91668c84e722596 (excl.)
  • affected from 3c3c1f1416392382faa0238e76a70d7810aab2ef to f8e9315236c8b5155158c6955a758e7960b143e6 (excl.)
  • affected from 3c3c1f1416392382faa0238e76a70d7810aab2ef to d00b0d808ca706a04bd198827319a4a287eff82a (excl.)
  • affected from 3c3c1f1416392382faa0238e76a70d7810aab2ef to 0bfa897e3e1a61d172f95675b353168bc9290312 (excl.)
  • affected from 3c3c1f1416392382faa0238e76a70d7810aab2ef to c57e238b475e8e1e514499772b8c0db5768be93f (excl.)
  • affected from 3c3c1f1416392382faa0238e76a70d7810aab2ef to 74f49255492a62658f36bf2578d7916f1c6ffad1 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 5.16 is affected
  • unaffected from 0 to 5.16 (excl.)
  • unaffected from 6.1.188 to 6.1.* (incl.)
  • unaffected from 6.6.157 to 6.6.* (incl.)
  • unaffected from 6.12.110 to 6.12.* (incl.)
  • 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