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driver core: use READ_ONCE() for dev->driver in dev_has_sync_state()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: driver core: use READ_ONCE() for dev->driver in dev_has_sync_state() dev_has_sync_state() reads dev->driver twice without holding device_lock() -- once for the NULL check and once to dereference ->sync_state. Some callers only hold device_links_write_lock, which doesn't prevent a concurrent unbind from clearing dev->driver via device_unbind_cleanup(). Fix it by reading dev->driver exactly once with READ_ONCE(), pairing with the WRITE_ONCE() in device_set_driver().

Announced Source revision 1
Original source ↗

CVE-2026-80677

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-2026-80677

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": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
        "lessThan": "89789e4c141904506163dcb91c7289a074573931",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
        "lessThan": "51b3e1de53ee5b7775c7ff90e67fdb2665fce938",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
        "lessThan": "358697929351f619143f59c6a8a15a4994748b79",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
        "lessThan": "5e79e0180515b31b2e2244dc3d256fd8b5a07021",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
        "lessThan": "860885fcd2611bca8c28dac8b2c1c7ff160f763e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
        "lessThan": "cc77f0d91e3214e4292208f02a1dc09a31f9aac7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
        "lessThan": "9b0f4082a09760939588135d60a8e9cc994bfa3e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ac338acf514e7b578fa9e3742ec2c292323b4c1a",
        "lessThan": "e9506871a8ea304cde48ff4a57226df2aadddae3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6d88283a49425eb469aa60ffebe76539e73c933e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5.5.13",
        "lessThan": "5.6",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "include/linux/device.h"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.6"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.6",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.261",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.212",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.178",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.145",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.97",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.40",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.1.5",
        "versionType": "semver",
        "lessThanOrEqual": "7.1.*"
      },
      {
        "status": "unaffected",
        "version": "7.2",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "include/linux/device.h"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-80677

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#34353 · Revision 1
Added to Heist Feed
Publisher date
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