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PCI: Fix UAF when probe runs concurrent to dyn ID removal

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: PCI: Fix UAF when probe runs concurrent to dyn ID removal Dynamic IDs are only guaranteed to be valid when dynids.lock is held, as remove_id_store() can free the node. Thus, make a copy in pci_match_device(). Also, clarify that the id parameter is only valid during probe.

Announced Source revision 1
Original source ↗

CVE-2026-90421

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-2026-90421

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": "0994375e9614f78657031e04e30019b9cdb62795",
        "lessThan": "d867db0a2602919510f346bc555f7b3093f6b6cc",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0994375e9614f78657031e04e30019b9cdb62795",
        "lessThan": "2cbcb0819c6367e1d5b0792a960594cc19576e23",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0994375e9614f78657031e04e30019b9cdb62795",
        "lessThan": "c36816feff47f676dcc51919777d483f4146c1ee",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0994375e9614f78657031e04e30019b9cdb62795",
        "lessThan": "42a5661ff7e4c7d3c5025d0f8e5079fb5479ea49",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "0994375e9614f78657031e04e30019b9cdb62795",
        "lessThan": "3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/pci/pci-driver.c",
      "include/linux/pci.h"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "2.6.30"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "2.6.30",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.6.160",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.114",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.57",
        "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/pci/pci-driver.c",
      "include/linux/pci.h"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-90421

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#48692 · Revision 1
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Publisher date
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