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RDMA/core: fix refcount bug in iwpm_get_nlmsg_request()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: fix refcount bug in iwpm_get_nlmsg_request() iwpm_get_nlmsg_request() initializes refcount _after_ list_add_tail() making it accessible to global list where another CPU can kref_get() on nlmsg_request causing a refcount "addition on 0" bug. Fix this by initializing kref _before_ list_add_tail() so refcount for nlmsg_request can be incremented/decremented normally. In addition, also initialize every field before list_add_tail().

Announced Source revision 1
Original source ↗

CVE-2026-98252

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-98252

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "30dc5e63d6a5ad24894b5512d10b228d73645a44",
        "lessThan": "52c13c63bb3662c108244e7447055e30bf40244e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "30dc5e63d6a5ad24894b5512d10b228d73645a44",
        "lessThan": "8a91609032d47e77bcb37bc8f6e88d89340d2709",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "30dc5e63d6a5ad24894b5512d10b228d73645a44",
        "lessThan": "ce8a379598bd4058081416abea4279fd05a95374",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "30dc5e63d6a5ad24894b5512d10b228d73645a44",
        "lessThan": "2fbac8a56004b6ce54fbfe845d4b25da6e0b55e8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "30dc5e63d6a5ad24894b5512d10b228d73645a44",
        "lessThan": "88e429a4e9bac3d2138011c5ca06254331f2587f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "30dc5e63d6a5ad24894b5512d10b228d73645a44",
        "lessThan": "e15eb536be4f646ce683d2867572b2200be877f7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "30dc5e63d6a5ad24894b5512d10b228d73645a44",
        "lessThan": "117871cdb8927542abd7b65ce5995bf0265a8c05",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "30dc5e63d6a5ad24894b5512d10b228d73645a44",
        "lessThan": "33fb59da49c4c3f5c2ec9f9d4447a56857a02c02",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/infiniband/core/iwpm_util.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.16"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.16",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.271",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.222",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.189",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.158",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.112",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.54",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.8",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/infiniband/core/iwpm_util.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-98252

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#38331 · Revision 1
Added to Heist Feed
Publisher date
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