Skip to content
Heist/ feed
Unrated

IB/mlx4: Fix use-after-free on pkey sysfs registration failure

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: IB/mlx4: Fix use-after-free on pkey sysfs registration failure register_pkey_tree() ignores errors from register_one_pkey_tree() and continues registering the remaining slaves. The per-slave error path has already released the pkey parent kobjects, but their pointers remain stored in the device. A later device cleanup therefore passes the stale pointers to kobject_put(), causing a use-after-free. Clear the parent pointers after releasing a failed slave tree and skip unregistered trees during device cleanup. This preserves the existing best-effort registration behavior while preventing a second cleanup of the failed tree.

Announced Source revision 1
Original source ↗

CVE-2026-98217

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-2026-98217

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": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
        "lessThan": "791471421d848ce13e84f4b21c9e19973d471c4e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
        "lessThan": "734f066933484f6c7cedea0312763249beed5845",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
        "lessThan": "a07bee32127d7c4cd3b1bb9a088e21d0c93634c9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
        "lessThan": "cf20d7476754c00eec04ae23d3e929de33ce0345",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
        "lessThan": "0c3482e965b18bc242e54e899d1c4d391ca8e5e3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
        "lessThan": "ffb80872617b5f9b3dd1536ec2909029fa66f228",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
        "lessThan": "ced1186fea7c77e16681c7ef4802897885989c3b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a",
        "lessThan": "1af874e9f4ce22ccf8b10ab5462f32c70d3be21a",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/infiniband/hw/mlx4/sysfs.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.7"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.7",
        "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/hw/mlx4/sysfs.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-98217

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#38296 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement