CVE-2026-92523

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux3c3c1f1416392382faa0238e76a70d7810aab2ef < 7828d68ae8cad3463e38def5c91668c84e722596affected
LinuxLinux3c3c1f1416392382faa0238e76a70d7810aab2ef < f8e9315236c8b5155158c6955a758e7960b143e6affected
LinuxLinux3c3c1f1416392382faa0238e76a70d7810aab2ef < d00b0d808ca706a04bd198827319a4a287eff82aaffected
LinuxLinux3c3c1f1416392382faa0238e76a70d7810aab2ef < 0bfa897e3e1a61d172f95675b353168bc9290312affected
LinuxLinux3c3c1f1416392382faa0238e76a70d7810aab2ef < c57e238b475e8e1e514499772b8c0db5768be93faffected
LinuxLinux3c3c1f1416392382faa0238e76a70d7810aab2ef < 74f49255492a62658f36bf2578d7916f1c6ffad1affected
LinuxLinux5.16affected
LinuxLinux0 < 5.16unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References