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CVE-2026-92523

RDMA/nldev: validate dynamic counter attribute length

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 3c3c1f1416392382faa0238e76a70d7810aab2ef · fixed in 7828d68ae8cad3463e38def5c91668c84e722596; From 3c3c1f1416392382faa0238e76a70d7810aab2ef · fixed in f8e9315236c8b5155158c6955a758e7960b143e6; From 3c3c1f1416392382faa0238e76a70d7810aab2ef · fixed in d00b0d808ca706a04bd198827319a4a287eff82a; From 3c3c1f1416392382faa0238e76a70d7810aab2ef · fixed in 0bfa897e3e1a61d172f95675b353168bc9290312; From 3c3c1f1416392382faa0238e76a70d7810aab2ef · fixed in c57e238b475e8e1e514499772b8c0db5768be93f; From 3c3c1f1416392382faa0238e76a70d7810aab2ef · fixed in 74f49255492a62658f36bf2578d7916f1c6ffad1

  • Linux Linux

    5.16

  • KernelLinux

    From 5.16.0 · fixed in 6.1.188; From 6.2.0 · fixed in 6.6.157; From 6.7.0 · fixed in 6.12.110; From 6.13.0 · fixed in 6.18.52; From 6.19.0 · fixed in 7.2.6

References 6

git.kernel.org