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iio: light: gp2ap002: Fix unbalanced runtime PM on repeated event writes

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: iio: light: gp2ap002: Fix unbalanced runtime PM on repeated event writes The IIO core does not filter duplicate writes to the event enable attribute, so writing the same value twice invokes write_event_config() twice. Enabling twice leaks a runtime PM reference, preventing the device from ever suspending again; disabling twice underflows the usage count and triggers a "Runtime PM usage count underflow" warning. Bail out early when the requested state matches the current state. While at it, switch to pm_runtime_resume_and_get() so a failed resume is propagated to userspace instead of silently marking the event enabled.

Announced Group revision 1
Original source ↗

CVE-2026-90249

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-2026-90249

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": "97d642e23037c5545266f9564c9b81e6db81b122",
        "lessThan": "b2d7a97d75b648a643f60d77f4d6d70161268855",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "97d642e23037c5545266f9564c9b81e6db81b122",
        "lessThan": "685d9d1e5c47e024413981fb7eddab86132b04a1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "97d642e23037c5545266f9564c9b81e6db81b122",
        "lessThan": "56fe8e5f313a64e458bb6f8b982de925345e21a7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "97d642e23037c5545266f9564c9b81e6db81b122",
        "lessThan": "8e76ab81319858736ccf23141e9415f9a1869337",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "97d642e23037c5545266f9564c9b81e6db81b122",
        "lessThan": "70b9482926ca92862460e659f5e5fde99ae0b4fa",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "97d642e23037c5545266f9564c9b81e6db81b122",
        "lessThan": "0fc740c25c9abb25113398ebb58e2f2ce57741a7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "97d642e23037c5545266f9564c9b81e6db81b122",
        "lessThan": "470edb012b1d9a4fba1cd59e329e60f0798c791a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "97d642e23037c5545266f9564c9b81e6db81b122",
        "lessThan": "579c049b4cb6fc72ce2c505fc5334540be0efcd3",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/iio/light/gp2ap002.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.7"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.7",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "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/iio/light/gp2ap002.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-90249

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#36615 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-90249 · Revision 1Source updated