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RDMA/erdma: Hold QP references for AE and CM processing

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: RDMA/erdma: Hold QP references for AE and CM processing AE QP fatal events and iWARP CM paths load QPs from dev->qp_xa and then use or reference them outside the xarray lock. erdma_destroy_qp() can drop the destroy-path reference and free QP resources while such a lookup is in flight. Add erdma_qp_get_by_qpn() to acquire a kref under the xarray lock with kref_get_unless_zero(). Remove the QP from the xarray before dropping the destroy-path reference so no new lookup can acquire it while destruction waits for existing users.

Announced Source revision 1
Original source ↗

CVE-2026-90308

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-2026-90308

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": "155055771704f8cbb5c176a4309b7dc30a50450c",
        "lessThan": "233f1b7fe2980e4e238fe03dd3ceddfd082cb4c8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "155055771704f8cbb5c176a4309b7dc30a50450c",
        "lessThan": "6e32f84b63c054e09392153125d7202abab2d14b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "155055771704f8cbb5c176a4309b7dc30a50450c",
        "lessThan": "ec987c0654651036dad6a42f7fa2a6d7c16a3687",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "155055771704f8cbb5c176a4309b7dc30a50450c",
        "lessThan": "c92686867638cda954fdb2bdbac8a75e3aa6eaae",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "155055771704f8cbb5c176a4309b7dc30a50450c",
        "lessThan": "a52eeff32024f190b3bdc99088c7becccd4fa60b",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/infiniband/hw/erdma/erdma_cm.c",
      "drivers/infiniband/hw/erdma/erdma_eq.c",
      "drivers/infiniband/hw/erdma/erdma_verbs.c",
      "drivers/infiniband/hw/erdma/erdma_verbs.h"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.0"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.6.160",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.52",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/infiniband/hw/erdma/erdma_cm.c",
      "drivers/infiniband/hw/erdma/erdma_eq.c",
      "drivers/infiniband/hw/erdma/erdma_verbs.c",
      "drivers/infiniband/hw/erdma/erdma_verbs.h"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-90308

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#48658 · Revision 1
Added to Heist Feed
Publisher date
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